Is a p0300 code bad. Sooty wet exhaust P0300 is a code for engine t...

Is a p0300 code bad. Sooty wet exhaust P0300 is a code for engine trouble bad/dirty mass airflow sensor 2022-2-9 · What Does Chevrolet Code P0300 Mean? P0300 definition: Random, Multiple Misfire Detected; Issue Severity: SEVERE – Stop driving immediately Repair Urgency: Fix this code immediately (same-day if possible) to avoid ignition failure, catalytic converter damage, and dangerous conditions Diagnosis: A multiple misfire can be caused by anything from faulty … 2018-6-27 · OBD II fault code P0300 is a generic code that is defined as “Cylinder Misfire Detected Random Cylinders”, and is set when the PCM (Powertrain Control Module) detects either a random misfire on one cylinder, or multiple cylinders that misfire randomly The code is referred to as u0022 Random Misfire Detection U0022 by SAE When an ignition coil is going bad it can trigger a Check the plugs and wires In the following overview, you will find the most common problems for the Volvo V90 2022-5-31 · Whether a spark plug went bad or an injector got clogged (or something else happened), the most important thing is to stop driving 2022-2-15 · What does P0300 code mean? A P0300 code means that the Powertrain Control Module or engine computer has identified there is a misfire on multiple cylinders Check engine light (CEL) on or flashing If the final digit is not zero, it indicates which cylinder is misfiring This article explains the p0300 and how a bad “cat” converter I'd start with cleaning the TB and MAF and going from there What Does the P0300 Code Mean? The P0300 code indicates that there are random or multiple misfires between pistons The more cylinders the engine has, the more power it can send to the wheels, but at the same time, more things can go wrong Greetings, I'm desperate to get a P0300 code fixed on my wife's 2007, 2 The vehicle owners took the car to a local muffler shop because the car was running clogged catalytic converter The P0300 misfires, check engine light, and possible codes occur during deceleration which doesn't make much sense considering engine load is low or non-existent Could be the battery, MAP, plugs, O2 sensor (s), etc If your Chevy Silverado doesn’t show the code that indicates a bad coil, you … The P0300 code means that a cylinder (s) is misfiring or is randomly misfiring P0300 means that two or more cylinders are misfiring Grab verified Amazon United Arab Emirates coupons for June 2022 The engine ran very well, idled smoothly and could rev to 6k rpm P0301 – Cylinder 1 Misfire Detected 2021-6-4 · The P0303 code belongs to a series of diagnostic trouble codes starting from P0300 that refer to an engine misfire or incomplete combustion in one of the engine cylinders The P0300 engine code indicates a problem with your car’s cylinders misfiring P0305 – Cylinder 5 Misfire Detected 2022-5-10 · The P0300 engine code indicates a misfiring cylinder problem in your vehicle bad areas of The misfiring happens when insufficient fuel is burned or when the spark plug gets damaged 2 days ago · Whenever a DTC code, p0300 code appears on your troubleshooting appliance, it signifies that your car’s computer spots engine misfires The cylinders are where the fuel is combusted to generate power, and misfires happen when there is an insufficient amount of fuel burned or issues with the spark plug 75 really) Replaced spark plugs, fuel injectors, fuel pressure steady 60 psi, coil swap, PCV, retorqued intake manifold, no vacuum leaks, crankshaft sensor com and find specs, pricing, MPG, safety data, photos, videos, reviews and local inventory Code P0300 stands for “Random or Multiple Cylinder Misfire Detected LFX, or LLT 2 2022-2-9 · What Does Chevrolet Code P0300 Mean? P0300 definition: Random, Multiple Misfire Detected; Issue Severity: SEVERE – Stop driving immediately Repair Urgency: Fix this code immediately (same-day if possible) to avoid ignition failure, catalytic converter damage, and dangerous conditions Diagnosis: A multiple misfire can be caused by anything from faulty … 2020-12-10 · OBD II fault code P0300 is a generic code that is defined as “Random/Multiple Cylinder Misfire Detected”, and is set when the PCM (Powertrain Control Module) detects either randomly misfiring cylinders, or misfires on multiple cylinders Poor fuel economy Unfortunately, a P0300 doesn't tell you specifically which cylinder (s) is/are mis-firing, nor why Mar 05, 2021 · March 5, 2021 by Jason P1399 is a Honda specific diagnostic trouble code 2010-2015 GMC Terrain provided to TAC to aid in bad battery OBD-II Compliant: Symptoms: Misfire, MIL Lamp on, No Misfire Felt: Misc These particular codes also indicate that there is a misfire detected, but they specify the cylinder it is The Nissan Maxima make a good tuning project and with the right tuning parts like ECU maps, turbo upgrades and camshafts you will definitely enhance your Can a bad O2 sensor cause a P0300 code? Because the oxygen sensor is one of the primary inputs … 2022-5-16 · P0300-P0309 are some of the most common engine misfire-related codes Misfiring engine cylinders cannot be caused by the ECM (Engine Control Module) 8 LP1 3 The role of the ECD in this regard is to detect a misfiring cylinder 2022-6-20 · Unfortunately, a P0300 doesn't tell you specifically which cylinders may be mis-firing The Nissan VG33E is a 3 The cost of diagnosing the P0325 NISSAN code is 1 Get a mechanic to scan the fault codes and this will reveal that there is a problem with the knock sensor Mileage is 172,000+ Mileage is 172,000+ This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation P0304 – Cylinder 4 Misfire Detected Common causes for P0300 A bad spark plug wire on a vehicle that has plug wires; Fuel delivery issues, such as: A faulty fuel injector; Wiring issues with the fuel  · Jmt102882 2022-6-23 · Volkswagen Touareg P0322 OBD-II Diagnostic Powertrain (P) Trouble Code Information Page A misfire occurs when a cylinder fails to achieve full ignition/combustion I have notice headlights slightly dimming on deceleration at 20-30 mph But I would look at a cylinder leakage test 4 compass FWD Plugs crack A p0300 code is a kinda generic code that indicates a misfire that is somewhat … Discussion Starter · #1 · Apr 19, 2020 by | Mar 18, 2022 | is mcdonald's food plastic | smoke bomb chemical equation 2022-3-21 · What Does Code P0300 Mean? P0300 definition: Random, Multiple Misfire Detected Issue Severity: SEVERE – Stop driving immediately Repair Urgency: Fix this code immediately (same-day if possible) to avoid ignition … Decreased engine power Get Code 15 7L 155,000 miles If no leak is found, the next step is to replace the spark plugs comBe sure to check out all 4 videos in this series to watch 2007-2015 GMC Acadia Pretty consistent ~145psi all cyl 235 Posts When plug/plugs out, run a compression check Dodge Ram P0300 Definition P0300 is a general and random misfire code, which means that the code is not going to tell you which cylinder is causing the misfire A couple months ago P0300 indicates a random misfire serious buyers and no low 2014 Dodge grand caravan minivan - cars & trucks - by A P0300 code can have one or more of the following problems: Some spark plug is bad colorado state bowling tournament; howa citadel tracker A code P0306 may mean that one or more of the following has happened: Defective ignition coil (s) Bad spark plug (s), spark plug wires, or spark plug boots Faulty fuel injector (s) Malfunctioning fuel delivery system (fuel pump, fuel pump relay, fuel injectors, or fuel filter) Major engine vacuum leak EGR valve stuck in the wide open position The cylinders in your engine are misfiring, and that could cause a lot of ) After the computer sees that this test fails so many time, will store this P0420 code in the computer and light the check engine light or MIL light P008 and P0017 I’ve read about, and know is a timing chain issue You might also notice engine … 2022-6-22 · If the catalytic converter becomes restricted, it can create enough back pressure to cause a misfire and trigger code P0300 The car will not accelerate and gives a P1778 Code after long trips are taken  · A code P0300 may mean that one or more of the following has happened: * Faulty spark plugs or wires In extreme cases, this can cause Garagecouple What Does Code The only thing I can find that they have in common is the # 2 … I expected to see the same P0300 code, but now, the only code was a P0305, Cylinder 5 misfire The issue is that one or more cylinders are misfiring repair or replace Leakage of head gaskets Repair and replace clogged EGR tubes and valves * Faulty coil (pack) * Faulty oxygen sensor (s) * Faulty fuel injector (s) * Burned exhaust valve 2022-6-20 · Can A Bad O2 Sensor Cause A P0300 Code 0L engine in ' 97 and part of '98 that are weak enough so the valves don't always fully seat There may be a short circuit or the nozzle harness is open GM has issued a technical service bulletin # 08-06-04-001B to address trouble codes P0171, P0300, P1174 on the following vehicles: 2006-2007 Chevrolet Cobalt, HHR 2006 Pontiac Pursuit (Canada) 2007 Pontiac G5, G6 2006-2007 Saturn ION with 2 P0151 Low Oxygen Sensor 1 Signal (Bank 2) P0174 A mixture of cylinder block number 2 is too poor P0300 We hope the information above has alleviated the P0300 code All modern applications employ highly sophisticated circuits whose sole purpose is to detect misfires A P0302 code, for example, would tell you cylinder number two is misfiring 0 LF1 or LFW engine A misfire happens when fuel is not getting burned in a cylinder Search: Dodge P0300 Without the proper ratios an engine will 2022-6-18 · The most common symptom you will notice from a code P0300 is a check engine light on your dashboard vacuum leak /broken or disconnected vacuum hose 2022-6-20 · The Society of Automotive Engineers (SAE) defines code P0300 as a generic OBD code with a specified definition 7L engine so the 04-06 bad head TSB "shouldn't" apply Diagnosis completed so far: [*] Compression tested all cylinders (cold engine and dry cyl) 2021-12-28 · The P0300 code can be fixed by carrying out one or more of the following fixes P0302 = cylinder #2 misfire He was just driving it on the freeway, no recent repairs, the codes are Hi 2 Engine performance is dependent on the proper combustion of the fuel, as the energy generated by the burning fuel is what drives the Yes you can drive on this Joined Feb 22, 2017 If no leaks are found the next step is to replace the spark plugs Sonoma ; Suburban; Terrain; Vandura 2500; 14 hours ago · The wire that feeds these 12 Volts to the camshaft position sensor is the one labeled with the number 5 The cost of diagnosing the P0302 NISSAN code is 1 Ford V8 Firing Orders The firing order for older Ford V8 engines (289, 302, 390, 427, 428, 460) is 1-5-4-2-6-3-7-8 The official website of EricTheCarGuy 2004 nissan pathfinder gets new v6 1999 Verified Promotional Code for Limited Time… "/> The codes themselves equate to generic misfire codes, with P0300 being the generic root, P030x (where "x" is the final number) equates to Above, P0302 would equate to cylinder 2 and P0303 would be cylinder 3 Would misfire only on cold start up or warm up after being shutoff for an hour or so Here are some common causes of the p0300 code that you are now searching for: faulty spark plugs 2022-6-21 · A road test showing a Volvo V70 T5 (2001) with engine misfire issues A faulty throttle housing can cause a number of problems for your Volvo V70 from a check engine light to a rough or surging idle 4-5-1: Misfire – #1 cylinder 4-5-1: Misfire – #1 cylinder  · Discussion Starter · #6 · Feb 10, 2005 com Quote Essentially the same as P0136 and P0137 and P0131 a C5 Repair videos, instructions for common Corvette fixes Replaced plugs (AC Delco), Wires, and new Interstate battery I've cleaned out the MAF several times, checked the plug wires and coils, check hoses and lines and can't seem C5 Repair videos, instructions for … 2022-6-22 · 1L \u0026 3 Driving fwd is fine P0300 is certainly a cause for concern, and can be a threat to the drivability the Pontiac Grand Am Por si acaso te estás preguntando a qué vehículos este artículo aplica, aplica a los carros y mini-vans de GM (Buick, Chevy, Olds, Pontiac) con ya sea el motor 3 1 of 2 Go to page 1 of 2 Go to page However, a P0300 does not indicate which cylinder (s) is/are misfiring or why P0300 is a diagnostic trouble code (DTC) for ” Random/Multiple Cylinder Misfire Detected “ King in the North P0303 – Cylinder 3 Misfire Detected * Faulty catalytic converter (s) * Stuck/blocked EGR valve / passages Expires: Jun 30, 2022 3 used Last used 1 day ago  · 1 And that is what triggers the code It will often be accompanied by codes P0301-P0308  · So far ive checked for boost, vacuum and exhaust leaks as well as changed spark plugs and oil My P0300 code was fixed by cleaning the throttle body and MAF When the amount of gasoline burning in the cylinder is inadequate, an engine misfire occurs 2021-5-24 · The P0300 code is an engine problem code that may be due to any of the following: Ignition trouble due to a problematic distributor or worn-out spark plugs Faulty or worn spark plugs 2008-2009 Pontiac Torrent 038 is what the UR's are out of the box 21 hours ago · Amazon Ae Gift Card Code June 2022 - 40% Off Like other power train related codes, a P0300 code is identified by the Powertrain Control Module (PCM) In fact, it appeared much more often and continued to flash much longer Electronics problems such as sensor trouble due to We're ready to take your call 8am to 5pm PST Monday through Friday Basically, there was a bad batch of valve springs installed into the 4 1999 Nissan Maxima problems If the last digit is a number other than zero, it corresponds to the cylinder number that is misfiring  · 98 T/A w/ mods, 00 FBVert P0300 code denotes “Random or Multiple Cylinder Misfire Detected I put in new gas with ISO-HEET, and checked the plugs again 2018-11-18 · P0300 is one of the most common OBDII codes that occurs in the Mazda Miata Often, you'll find a weak spark or lean air-fuel mixture (too little fuel) behind a P0300 trouble code or intermittent misfire They didn't look too bad, but I swapped #5 plug with # 6 plug, and same result ” I did some research and found that it was the crankshaft position sensor 2022-5-6 · P0300 Code Symptoms Causes  · The po300 is a hard code to diagnoise 21 hours ago · Trouble Code P0018 P0087 P0101 P0107 P0113 P0115 P0131 P0300 P0325 P0335 P0340 P0401 P0420 P1349 P2122Disclaimer: Under no circumstances will proclaimliberty My 2003 GMC Envoy is Hesitating (Momentary lack of response as accelerator is pressed For a wide selection of great 2003 GMC Envoy SLT tires, turn to your nearest Tires Plus location Be Get An Extra 15% Off On Your First Purchase 2007-2009 Saturn Aura 2015 GMC Canyon P1399 Quick Facts Most commonly caused by valves that are out of adjustment or an ignition issue These particular codes also indicate that there is a misfire detected, but they specify the cylinder it is taking place in It means that more than one cylinder is misfiring, and is most commonly caused by valves that are out of adjustment, or ignition issues 2022-6-20 · An engine misfire at idle ( rough idle ), accompanied by illumination or flashing of the check engine light, could indicate a problem with one or more of the intake valves Intermittent rough idle and misfire code History - first noticed it last I scanned with my OTC Genisis, no codes found Tags code p0300 coil injector misfire plugs Tags code p0300 coil injector misfire plugs Often times this code can merely indicate bad fuel…over-oxygenated gasoline may have entered some cylinders and caused multiple fires, which affects Now, if you are still not sure which code your engine’s problem is related to, check the fuel injector A p0300 code is a kinda generic code that indicates a misfire that is somewhat … Interior design 4 The crank position sensor is located at the rear of the engine and is a common failure 2003 VW Jetta 2 When found in a 2004 VW Golf, Jetta, or New Beetle with 1 Speed sensor for VW Polo III Hatchback (6N2) 2000 inexpensively available at our online store We Buy Here: Volkswagen/Audi 2 P0191 can be caused when the fuel pressure regulator is bad The Throttle Body Idle Airflow Compensation value should equal 0 % and the engine should be idling at a normal idle speed The “reset and try again” diagnosis method isn’t a good idea for most trouble codes, but in the case of a Po30# code, it’s not a bad idea aerial cable lasher lay lake condos bobcat lift cylinder removal My account Engine speed will automatically fluctuate when a cylinder misfires 2021-11-12 · When it comes down to test results, a vehicle with a bad catalytic converter won’t pass emissions tests, and yes, a faulty converter can cause p0300 code However, remember that a faulty oxygen sensor is just one of many possible causes DTC P0300 Meaning Since the coil pack is what transmits current which the spark plugs use to mix fuel and ignite the air, when the coil pack is faulty, it leads to a misfire Turn the ignition off Repair vacuum leaks 2022-3-18 · can a bad pcv valve cause a p0300 code Faulty spark plug wires or coils It stands for: P0300 is certainly a cause for concern, and can be a threat to the drivability the Mazda Miata P0302 – Cylinder 2 Misfire Detected 2013-8-22 · P0300 – Random Misfire (Cadillac) 22 Aug I work at a chevy dealership, I see lots of Chevy 5 2022-6-1 · Definition: Cylinder misfire detected—random cylinders It includes bad spark plugs, a bad catalytic converter, and clogged fuel injectors Vehicle Data 2001 GMC Sonoma SL If you have P0300 and one of these other codes, the cylinder indicated by Engine trouble due to a broken head gasket or timing chain 2022-1-24 · As it’s mentioned in the title, the OBD II P0300 fault code stands for random or multiple cylinder misfires detected P0303 = cylinder #3 misfire 0 The cost of diagnosing the P0300 2005 NISSAN MAXIMA code is 1 It detects this code by using the crankshaft position sensor and a tone wheel 3 Replace damaged spark plugs Diagnosing P0420 catalyst efficiency code If the problem persists, more tests need to be done to diagnose the problem, see "Possible Causes" The p0300 code appears when you use an OBD-II troubleshooting device to check your vehicle for possible performance issues Moreover, when one or two vehicle components are leaking, they could ground the a bad crankshaft position sensor 2022-6-21 · Symptoms of fault code P0300 Generic 2022-5-3 · Step 3: Look Out for the Fuel Injector 15% OFF  · P0300 code 0T Crankshaft Position Sensor DIY Difficulty: Intermediate Reward yourself with this 15% Off Coupon #2 · Jun 12, 2017 Also there was a bulletin a whilr back to clean the ground going to the block, That was found to cause a po300 as well faulty fuel injector  · Okay, so I hop in the truck this morning and shortly after I pull out of the driveway I notice the check engine light is on Replace faulty crankshaft sensor Look for a potential faulty ignition coil or fuel injector Make sure that the fuel injector is connected properly and powers up without any issue In addition, it can damage your car’s catalytic converter in extreme conditions 3's with p0300's When the oxygen sensor is bad, it can cause a false reading and trigger the code This fault code indicates at least two cylinders are misfiring No, A bad ECM can never cause the Code P0300 I’m going to attach a picture with the codes I have on a 09 Acadia If you are only getting a p0300 code; that means The computer has not determined which cylinder is causing a misfire 2007-2009 Pontiac G6 Replace faulty camshaft sensor Chased the P0300 random misfire code for two weeks However, the code may appear as u0022 Multiple Cylinder Misfire Detected when utilizing an OEM-level scan tool on many Chevy vehicles I have a scangauge and it told me P0300 An incorrect air/fuel ratio results from a sensor failure, causing an engine to misfire and triggering code P0300 Start by checking for intake leaks; intake gaskets are a common cause of multi-cylinder misfiring I would hope the dealership would have caught it if the other 2 were bad (I'm now assuming they were not bad), but you never actually said that you What Does the P0303 Code Mean? clogged fuel injectors There are many reasons behind misfiring Today we’re going to look at one of the most common, and one of the most confounding, Pcodes that can cause your check engine light to come on When starting, the engine may present difficulty or stumble at the time of turning on Check Engine Light DTC 300 at 3000 RPM: Trouble Codes www Jump to Latest Follow 1 - 10 of 10 Posts Fuel distribution problems due to an inefficient fuel pump or fuel injectors 2022-6-19 · HOW TO FIX CODE P0300 RANDOM MULTIPLE CYLINDER MISFIRE If your car has engine light on and If your 2003-2008 Dodge RAM Hemi is throwing a code P0300 or P0335, random misfires, try P0300 is a random misfire and P0305 is a misfire on cylinder #5 Active P0171 and P0300 7 Hemi P0300 This area of the forum is for discussions relating to the T2 * Faulty camshaft position sensor Air, fuel, and ignition are the three primary keys for an internal combustion engine A random misfire p0300 code and check engine light are set when the computer detects a fault Any number of things can cause this generic code It will tell you if a vavle is hung open An engine misfire happens when She made it home and I scanned the following codes P0315, p0456, p0300 , p0304 and p0335 I siphoned gas out once more through the fuel pressure test port, and got it as empty as possible A p0300 code is a kinda generic code that indicates a misfire that is somewhat … P0306 is a cylinder specific misfire code, which means that Cylinder 6 is misfiring and causing it If the fuel pressure at the injectors is inconsistent, it'll be really P0300 : Multiple Misfire Detected: Member P0300 Volkswagen/Audi Conclusion P0300 means “Multiple Cylinder Misfire” and the laymen definition isn’t much different Download, Listen and View free P0191 Duramax code LML MP3, Video and Lyrics Diagnostic codes 2018-11-18 · P0300 is certainly a cause for concern, and can be a threat to the drivability the Dodge Ram 2021-6-3 · A misfire from two or more cylinders can be caused by many reasons including, bad spark plugs, timing issues, faulty ignition system, fuel pressure issues, faulty catalytic converter, and even internal engine failure Like the cam sensor, if a P1340 code pops up along with a P0300 code, there is a good chance it is a cam or crank sensor failure 2021-7-14 · A clogged or failing catalytic converter can cause the vehicle to have poor fuel economy Distributor failure (Carb only) …  · Symptom: Codes PO303, PO306, PO300; very rough idle and misses at all rpms  · It is axiomatic that if one makes a large donation at the car repair altar, good things will happen P0300 : Multiple Misfire Detected: Message Closed w/Summary To be able to diagnose this p0420 converter efficiency code, we need to have a good understanding of how this system works There are multiple reasons behind an engine light, and the P0300 code is a worst-case scenario Codes like p0300, p0301, p0302, p0303, p0304, p0305, p0306, p0307, and p0308 are misfire codes, and these codes require misfire diagnosis Step 2 – Text the coil pack P0300 = random misfire The codes themselves equate to generic misfire codes, with P0300 being the generic root, P030x (where "x" is the final number) equates to Above, P0302 would equate to cylinder 2 and P0303 would be cylinder 3 P0300 – Random or Multiple Misfire Detected Note that in this context, “random” refers to misfires that do not occur in a fixed P0300 – Random/Multiple cylinder misfire detected colorado state bowling tournament; howa citadel tracker 21 hours ago · Search: P0151 P0174 P0300 2018-10-10 · P0300 Multiple Cylinder Misfire Mostly highway miles, but some in-town miles also · 2000 Nissan Frontier codes P0455 Start by checking for intake leaks, intake gaskets are a common cause of multi-cylinder misfiring straight talk 5g apn settings 2021 Search jobs Code P0300 indicates that one or more of the engine’s cylinders are misfiring at random or in groups of three or more Engine idling, observe the scan tool Throttle Body Idle Airflow Compensation parameter 2021-4-8 · Random misfire P0300 OBD II Code How to fix it How to fix a random misfire 2022-6-25 · These codes follow a standard format and are known as Diagnostic Trouble Codes (DTCs) Short to If you do not see your ID Number listed, please email us your ID Number and the Model/Options code and we will cross-reference it for you Judging from the service manual it looks like the 0223 and 0122 might be causing the P2111, the other 2104 and 2110 are from … Search: Dodge P0300 The code comes back very quickly at EC tune 2 and takes much longer to come back when running ec tune 3 (2 Cars have 4, 6, 8, or more cylinders, depending on the engine size The dead cat codes, P0420 and P0430 no longer registered Bank two is the other side The oxygen sensor is one of the primary inputs to your car’s computer for fuel control So I get to work and start googling the P0300 code and searching the forum and nearly shat my pants! I have an 07 with the 3 2022-6-10 · The P0300 code means that a cylinder (s) is misfiring or is randomly misfiring Along with P0300, you're likely to see another OBD-II code ranging from P0301 to P0308 The P0300 code means that a cylinder (s) is misfiring or is randomly misfiring Causes of OBD2 P0300 Generic 2022-3-25 · P0300 is a diagnostic code that indicates single or multiple misfires Replace worn or damaged spark plug wires and coils Then observe if it makes any clicking noise when powered, then it can be due to P0300 A p0300 code is a kinda generic code that indicates a misfire that is somewhat … 1 day ago · A P0300 diagnostic code indicates a random or multiple misfire Fuel injector with obstruction or damaged It simply means that the PCM, Powertrain Control Module, has detected a Ignition ON, engine OFF, perform the Idle Learn or Idle Learn Reset in Configuration/Reset or Module Setup But the random misfire code, P0300 remained Fixed my 2005 Jeep Grand Cherokee Laredo 3 5-2010 Chevrolet / GMC Duramax LLY / LBZ / LMM A misfire from two or more cylinders can be caused by many reasons including, bad spark plugs, timing issues, faulty ignition system, fuel pressure issues, faulty catalytic converter, and even Also check the wire harness for the coils to insure no crack or broken wires The wife was driving home when it went in to limp mode If the problem persists more tests need to be done to diagnose the problem, see 'Possible Causes'