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P0300 Diagnostic Trouble Code Discussion for December 2011

Multiple Misfire Detected *

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Trouble Ticket Help Requests for DTC P0300

	Help Request	Posted
	2000 Chevrolet S10 2.2L Misfire VIN: 1GCCS1451Y P0300: Multiple Engine Misfire Detected. Vehicle came in severly overheated. Compression tested engine and leak down tested and found compression leaking in to coolant passages. When Coolant was low enough engine would run Good (no miss fires) and had strong spark in all cly. Replaced engine with a r...	December 02, 2011
	2002 Nissan Xterra SE 3.3L Cuts out, Stall, MIL Lamp on VIN: 5N1MD28Y52 P0300: Multiple Misfire Detected. ... heavy load on hwy, stalling, loss of power. Had p0300, p0328 Intermittent, have to drive about 30 min. Has been to several shops. I could not dup. after over 1hr of driving. He asked for knock sensor per his own internet searching. On test drive after repa...	December 04, 2011
	2007 Chevrolet Express 1500 4.3L Excessive Emissions, Poor Idle Quality, Cuts out, Stall, Misfire VIN: 1GCFG15X37 P0300: Multiple Cylinder Misfire Detected. vehicle came in with rough run/stalling condition. found multiple misfire codes, pulled plugs and found worn and fuel soaked. replaced full tune, and noticed induction boot was off just before throttle body. reconnected tightly, and attempted to start vehicle....	December 06, 2011
	2002 Nissan Xterra SE 3.3L Cuts out, Stall, MIL Lamp on VIN: 5N1MD28Y52 P0300: Multiple Misfire Detected. ... heavy load on hwy, stalling, loss of power. Had p0300, p0328 Intermittent, have to drive about 30 min. Has been to several shops. I could not dup. after over 1hr of driving. He asked for knock sensor per his own internet searching. On test drive after repa...	December 06, 2011
	2002 Chevrolet Silverado 1500 4.8L Cuts out, Misfire, MIL Lamp on VIN: 1GCEC19V02 P0300: Multiple Cylinder Misfire Detected. we have changed both o2 sensors, mass air flow, intake manifold gasket, fuel filter, injectors and fuel pressure regulator.	December 07, 2011
	2005 Ford F-150 FX4 5.4L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1FTPX14525 P0300: Random misfire. ... via instrument cluster shows normal and engine doesnt make much noise other than the horrible misfires but havent checked with guage yet. Watching varaible cam timing on genysis scan tool shows 65% adv error on bank 2 and only .06% on bank 1. Original pull...	December 07, 2011
	2004 Toyota Corolla CE 1.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1NXBR32E14 P0300: Multiple Cylinder Misfire Detected. ... power no hesitation. Had code P0031,PO134,P0300,P0301,P0302,P0303,P0304. tested o2 and found heater circuit bad replaced with factory o2 and scanner s...	December 07, 2011
	2005 Ford F-150 FX4 5.4L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1FTPX14525 P0300: Random misfire. ... via instrument cluster shows normal and engine doesnt make much noise other than the horrible misfires but havent checked with guage yet. Watching varaible cam timing on genysis scan tool shows 65% adv error on bank 2 and only .06% on bank 1. Original pull...	December 08, 2011
	2005 Dodge Grand Caravan SXT 3.8L Misfire VIN: 2D4GP44L85 P0300: Multiple Cylinder Misfire Detected. ok fuel pressure good plugs 4 and 6 get black with in five minuets running misfire counter shows no misfire although you can feel it at idle and under load map seems to be okany help would be great.	December 09, 2011
	2001 Kia Sportage 2.0L Misfire, MIL Lamp on VIN: KNDJB623X1 P0300: Random Cylinder Misfire Detected. ... ever experienced! vehicle came with blown head gasket. Advised customer for engine overhaul. Car runs great when it's hot. Problem happens when it's cold and when you push on the gas,then the car stalls,gets flooded,no compression! when misfire occurs in t...	December 09, 2011
	2004 Nissan Maxima SL 3.5L Cuts out, Misfire VIN: 1N4BA41E94 P0300: Multiple Misfire Detected. ... Smooths out above 2000 RPM. Inspected plugs, and battery ground at trans. Customer says problem started suddenly and catastrophic while driving this cold morning after engine had warmed up. Had no codes on arrival, but if you give part throttle you can sta...	December 09, 2011
	2003 Chevrolet Silverado 1500 4.8L Misfire, MIL Lamp on VIN: 1GCEK19V13 P0300: Multiple Cylinder Misfire Detected. hi all, thank you for looking at this and any help you give me. this is one of our fleets trucks and has been maintained very well. it came in about 2 weeks ago with a miss on number 7. in fact all of the newer chevys that we have were in with this problem all...	December 10, 2011
	2004 Cadillac CTS 3.6L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1G6DM57754 P0300: Multiple Cylinder Misfire Detected. Vehicle came in with check engine light blinking and above listed codes. Cleared codes. Codes returned shortly after restart, did not drive vehicle. Injector #1 was not working. Replaced injector-still not working. Unable to actuate fuel injectors with scanner...	December 13, 2011
	2005 Chevrolet Silverado 1500 4.3L Misfire P0300: Multiple Cylinder Misfire Detected. This truck idles fine. above idle #4 cylinder will misfire. I can hook up a spark tester on 4 and watch the spark get weak and then will quit firing altogeather. under a snap throttle it will not misfire or on decel it fires always. I have tried this spark tes...	December 13, 2011
	2007 Ford F-150 XLT 5.4L Poor Idle Quality, Hesitation, Misfire VIN: 1FTPW14V07 P0300: Random cylinder misfire. got this this truck here. customer complaint was that at about 100 km/h the truck misfires and check engine light flashes. scanned and has code for cylinder #5 misfire. traced it down to the coil. replaced the coil and spark plug for that cylinder. took the tr...	December 13, 2011
	2001 Kia Sportage 2.0L Misfire, MIL Lamp on VIN: KNDJB623X1 P0300: Random Cylinder Misfire Detected. ... ever experienced! vehicle came with blown head gasket. Advised customer for engine overhaul. Car runs great when it's hot. Problem happens when it's cold and when you push on the gas,then the car stalls,gets flooded,no compression! when misfire occurs in t...	December 13, 2011
	1999 Buick Park Avenue Ultra 3.8L Stall, loses power, stall, VIN: 1G4CU5219X P0300: Engine Misfire Detected. complaint of losing power, intermittent, said while accel from stop couple of times, and lost power while moving few times also, and actually stalled couple of times.. wont act up for me.. current ramp fuel pump but cant decide what the signal is- has steady h...	December 14, 2011
	2000 Chevrolet Prizm 1.8L Poor Idle Quality, Cuts out, Stall VIN: 1Y1SK5484Y P0300: multi missfire. runs terrible at idle. bogs down while accelerating at shop. airflow meter seems ok is responding,however do not have idle or 2500 rpm specs for air flow meter. veh runs much better if we richen fuel with carb spray or propane inrichment. runs super lean... fu...	December 16, 2011
	2000 Toyota Tundra SR5 4.7L Misfire VIN: 5TBBT4418Y P0300: Multiple Cylinder Misfire Detected. ... check for codes, found p0300,p0302,p0305,p0307 all misfire codes, mil lamp has started flashing (catalyist damaging), tested compression, tested coils, moved coils, replaced plugs (due to some foulness), checked spark, p0302...	December 16, 2011
	2002 Volkswagen Passat GLS 4 Motion 2.8L Misfire, MIL Lamp on VIN: WVWSH63B52 P0300: Random/Multi Misfire. Hello, having an issue with this Passat. Runs smooth at idle, only misfire under wide open throttle. It has a known good coil, I also removed the upstream o2 sensor and road tested to check for a blocked cat, it made no change. Wires are new and tested. plugs ...	December 16, 2011
	2000 Chevrolet Tahoe Z71 5.7L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1GNEK13R8Y P0300: Multiple Cylinder Misfire Detected. Vehicle came in with leaking intake gaskets, ran good. Replaced intake gaskets started to miss as soon as put back together. Verus shows 5&7 are misfiring ocasionally [...]. Thinking I did something wrong I went back in and redid intake gaskets. same probl...	December 17, 2011
	2003 Chevrolet Silverado 1500 5.3L Misfire, MIL Lamp on VIN: 2GCEK19T33 P0300: Multiple Cylinder Misfire Detected. this vech is an auction truck we replaced the fly wheel cracked. also replaced fuel filter and a kinked fuel line.both o2 sensors before the cats. fuel psi reg leaking. plugs wires and a coil pack. and fixed the gio3 ground for the pcm. when the computer goes ...	December 19, 2011
	2000 Saturn SL2 1.9L Surge, Cuts out, Misfire, MIL Lamp on VIN: 1G8ZK5274Y P0300: Random Misfire Detected. Vehicle came in with cel and misfire after vehicle warms up. Found several computer codes p0130 0134 0300 0326 0340 0341 0731 1133 1584 1599 1624. Cleared codes and drove vehicle first code to come back and only code was p0130. Unplugged o2 sensor 1 vehicle ru...	December 19, 2011
	2007 Audi A4 2.0L MIL Lamp on VIN: WAUAF78E47 P0300: Random Multiple Misfire - Intermittent. Hello, and happy holidays. We've got this Audi with one recurring code and a few newbies. The car originally came in two weeks ago with misfire and lean condition codes. After the quick diagnosis of the old try to remove the oil cap at idle trick, the crank ca...	December 20, 2011
	2008 Audi A3 2.0L Stall, MIL Lamp on VIN: WAUHF68PX8 P0300: Random Misfire. Dear Audi Friends: We service car since new and it always was a good car, now it came in with 4 (9) faults. see above. Customer complain is: in the morning (only) car will start stall multiply times, to get car idling you have to depress accel pedal and car st...	December 20, 2011
	2003 Chevrolet Silverado 1500 5.3L Misfire, MIL Lamp on VIN: 2GCEK19T33 P0300: Multiple Cylinder Misfire Detected. this vech is an auction truck we replaced the fly wheel cracked. also replaced fuel filter and a kinked fuel line.both o2 sensors before the cats. fuel psi reg leaking. plugs wires and a coil pack. and fixed the gio3 ground for the pcm. when the computer goes ...	December 20, 2011
	2000 Saturn SL2 1.9L Surge, Cuts out, Misfire, MIL Lamp on VIN: 1G8ZK5274Y P0300: Random Misfire Detected. Vehicle came in with cel and misfire after vehicle warms up. Found several computer codes p0130 0134 0300 0326 0340 0341 0731 1133 1584 1599 1624. Cleared codes and drove vehicle first code to come back and only code was p0130. Unplugged o2 sensor 1 vehicle ru...	December 20, 2011
	2002 Volkswagen Passat GLS 4 Motion 2.8L Misfire, MIL Lamp on VIN: WVWSH63B52 P0300: Random/Multi Misfire. Hello, having an issue with this Passat. Runs smooth at idle, only misfire under wide open throttle. It has a known good coil, I also removed the upstream o2 sensor and road tested to check for a blocked cat, it made no change. Wires are new and tested. plugs ...	December 21, 2011
	2004 GMC Sierra 1500 SLE 4.8L Misfire VIN: 2GTEK19V74 P0300: Multiple Cylinder Misfire Detected. Car came in with random misfire code, misfires on 6 mostly and some on 5 but they are right next to each other in firing order so I have dismissed #5 misfires. Unplugging coil to 5 does drop RPM, unplugging #6 does not. I have performed cylinder balance test w...	December 22, 2011
	2005 Acura MDX Touring 3.5L MIL Lamp on VIN: 2HNYD18875 P0300: Random Misfire Detected. thanks in advance for the help. i have this 05 acura that is being a problem. every cold start it will throw all 6 cyl missfire codes. engine runs smooth. fuel pressure stays at 60 during cold start.iv replaced plugs. checked for shorts, im at my wits with thi...	December 28, 2011
	2002 Chevrolet S10 4.3L Surge, Misfire, MIL Lamp on VIN: 1GCCT19W12 P0300: Multiple Engine Misfire Detected. ... misfire that only happens at highway speeds, under a load after the trans shifts into OD. One scan tool is pulling a P0300B and another tool is pulling a P0303. Misfire data shows that the misfire is on cyl 3. A little his...	December 29, 2011
	2007 Chrysler Sebring 2.4L MIL Lamp on VIN: 1C3LC46K67 P0300: Multiple Cylinder Misfire. ... in with check engine light on.scanned car had codes p0300,315 and 335.replaced crank sensor and had chrystler reflash system to latest calibrations.week later car returned with same codes.check all wiring and connections.Had car for a week drove several ti...	December 29, 2011
	2002 Chevrolet S10 4.3L Surge, Misfire, MIL Lamp on VIN: 1GCCT19W12 P0300: Multiple Engine Misfire Detected. ... misfire that only happens at highway speeds, under a load after the trans shifts into OD. One scan tool is pulling a P0300B and another tool is pulling a P0303. Misfire data shows that the misfire is on cyl 3. A little his...	December 30, 2011
	2002 Pontiac Grand Am GT 3.4L Misfire, MIL Lamp on VIN: 1G2NW52E02 P0300: Multiple Cylinder Misfire Detected. I have had this car for a while now and im out of ideas. Has a random mis code and 1 is the worst also 2 and 5 but they were only missing 2-7 times verses 335 that cyl 1 was showing. It doesnt appear to leak coolant and if it were only number 1 I would probabl...	December 30, 2011
	2003 Pontiac Grand Am SE 3.4L Misfire, MIL Lamp on VIN: 1G2NF52E33 P0300: Multiple Cylinder Misfire Detected. I keep getting a p0300. On my scan tool it shows a constant misfire on cylinder 3 at idle. If I raise the rpm to 1500 no load and it goes away. At all times the engine runs smooth. I have swapped all ignition parts with know good parts, no change. I replaced t...	December 30, 2011