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P0300 Diagnostic Trouble Code Discussion for July 2011

Multiple Misfire Detected


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Trouble Ticket Help Requests for DTC P0300
Help Request Posted
2005 Dodge Ram 1500 Truck SLT 4.7L Hesitation, Surge VIN: 1D7HA18N95
P0300: Multiple Misfire Detected. I had a customer bring in his 2005 Dodge RAM 1500 4.7L yesterday complaining of a hesitation/ stumble on acceleration. He said it does not happen all the time but mostly after the truck has sat for at least 30 min. I took it for a test drive and sure enough it...
July 01, 2011
2003 Nissan Frontier SVE 3.3L MIL Lamp on VIN: 1N6MD26Y93
P0300: Multiple Misfire Detected. ... I've got a family members nissan here, and I'm trying to get any info I can before sending them to their local dealer. He says ever since he's owned the truck (about 5 years)it will flash the mil around 4000 rpm. Mil will usuall turn off shortly or within ...
July 05, 2011
2000 Pontiac Grand Am SE 2.4L Stall, Misfire, MIL Lamp on VIN: 1G2NF52T7Y
P0300: Multiple Cylinder Misfire Detected. hi everyone hoping for a little input. customer states was driving car and began to shake really bad then stalled towed car here,when i tried to start it it cranks,starts runs rough and back fires. fuel pressure is good,when i checked missfire data i saw #1,#3...
July 06, 2011
2007 Chevrolet Suburban 1500 LTZ 5.3L Poor Idle Quality, Misfire, MIL Lamp on VIN: 3GNFK16317
P0300: Multiple Engine Misfire Detected. ... thank all of you for your time in advance. Lets start off from the beginning. At about 85,000 miles this vehicle started to have issues with predetonation (pinging). At first this was only up hill or under relatively hard acceleration. At about 120,000 mil...
July 07, 2011
1998 Isuzu Trooper S 3.5L Hesitation, Misfire, MIL Lamp on, Lack of Power VIN: JACDJ58X4W
P0300: Multiple Cylinder Misfire Detected. ... to loose power going up hills and MIL then comes on and starts to run poorly. No codes when initially checked. On road test, truck seems to run normally around town but when any kind of load is applied, begins to feel week/anemic. Under WOT, MIL starts to ...
July 07, 2011
2000 Toyota Tacoma Limited 2.7L Misfire, MIL Lamp on
P0300: Multiple Cylinder Misfire Detected. Hello toyota techs. I have a 2.7 Tacoma with a misfire noticable at idle. Scanner shows misses on cyls 1 thru 3, none on four. Removed plugs, 1 thru 3 were clean, 4 was black like rich condition on 4. Fuel trim short term -5 to -8 long term -20. Replaced plugs...
July 09, 2011
2001 Dodge Ram 1500 Van 5.2L Hesitation, Surge, Cuts out, Misfire VIN: 2B6HB11Y21
P0300: Multiple Cylinder Misfire Detected. I have a 2001 ram 1500 van with 5.2 in it. It surges under a load [...] to 55mph and looses power dont know whats causing this i have checked backpressure and its 1psi at any rpm fuel pressure is 45psi and volume is good the tps is 3.5 volts wide open throttle...
July 11, 2011
2003 Isuzu Rodeo S V6 3.2L Poor Idle Quality, Low power VIN: 4S2DM58WX3
P0300: Multiple Cylinder Misfire Detected. Thanks in advance this rodeo came in with a low power complaint and rough idle. Watched scan data on test drive and o2 sensors look good and are switching but when i come to a stop after about 15 seconds bank 2 upstrem o2 stays at .57v then increases up to .87...
July 11, 2011
2003 Volkswagen Golf GLS 2.0L Misfire VIN: 9BWBK61J03
P0300: Multiple misfire. Vehicle came in several weeks ago with a check engine light, listed codes, and the complaint of a severe loss of power. Owner described the power loss as feeling like a misfire of one, possibly two cylinders. We were unable to duplicate the symptom in approx. ...
July 11, 2011
2002 Audi A4 Quattro 3.0L Misfire VIN: WAULT68E62
P0300: Random misfire. ... Found codes p0300, p0303. Verified cyl. 3 was misfiring. Installed 6 new plugs and a coil on cyl.3. Still misfires. Swapped coil with another cyl. And miss stays on cyl 3. Changed plug on cyl 3. Again, and no difference....
July 13, 2011
2005 Chevrolet Express 2500 4.8L Hesitation, Misfire VIN: 1GCGG25V45
P0300: Multiple Cylinder Misfire Detected. ... power. Intermit maybe once a day. Said could let up on pedal and it would maybe clear up and not do it again for a while. I have just barly got it to do it over a lot of test drives. It feels like a stopped up converter, but once you play with throttle it ...
July 13, 2011
1997 Eagle Talon 2.0L MIL Lamp on VIN: 4E3AK24Y8V
P0300: Multiple Cylinder Misfire Detected. Hello, sorry but this one may be lacking in some information but to be honest there is not a lot I have done due to the fact that this car has no plates on it, it is here from another shop looking for help on it. The vehicle runs fine every time we run it, and...
July 13, 2011
2001 GMC Sierra 2500 HD SL 6.0L Misfire, MIL Lamp on, flashing mil VIN: 1GCHC29U01
P0300: Multiple Cylinder Misfire Detected. Tuck came in with p0300. Truck just passed Ma insp with OBD2 test the day before. Scan tool on misfie data has equal counts on misfire monitor for cylinders #7 and #8. Disabled injectors with Modis. No noticeable changes on 7 and 8. Moved coils and wires to ot...
July 13, 2011
1999 Volkswagen Beetle GL 2.0L No Start VIN: 3VWCC21C21
P0300: multi miss. This crank no start problem started from leaving dome light on and a dead battery.fuel pump pressure in spec. Will fire on initial crank and run out of gas.noid light starts bright and dims out.some investigation has lead me to think this might have a corrupte...
July 14, 2011
2001 Nissan Sentra SE 2.0L Poor Idle Quality, Hesitation, Stall, Misfire VIN: 3N1BB51D91
P0300: Multiple Misfire Detected. ... rough idle at cold start and sluggish feeling when acclerating. Engine light was not on but scanned for codes anyways - P0300 and P0171. Did not find any misfires and system is not running lean. Tried replacing front o2 sensor but did not affect it. Tested...
July 16, 2011
2008 GMC Yukon SLT 5.3L Surge, Cuts out, Misfire VIN: 1GKFK130X8
P0300: engine misfire. ... customer complained of vehicle running rough and dying. Customer had vehicle at dealership where they replaced Fuel Volume balance module and reflash PCM. Problem is re-occuring, but is intermittent. Pulled codes and had P0171, p0174 and p0300. Vehicle is ...
July 19, 2011
2005 Mazda 6 S 3.0L Hesitation, Lack of power VIN: 1YVHP84D85
P0300: Random Misfire Detected. ... us a kick. Car has no power on take off but punches good when it get up to 3000 rpm then sometime the check engine light will start flashing with a p0300 code (multiple misfire) although you really cant feel a misfire. we replace all the coils and plugs. T...
July 19, 2011
2001 Volkswagen Beetle GLS 2.0L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 3VWCB21C21
P0300: Random/multiple Cyl. misfire detected. Car came into the shop this morning with a hesitation when wet, sprayed the wires with water and found the #1 wire was arcing. After replacement the VW would surge and hesitate at any time, removed coil pack and found hairline cracks in the case. After road te...
July 19, 2011
2008 GMC Yukon SLT 5.3L Surge, Cuts out, Misfire VIN: 1GKFK130X8
P0300: engine misfire. ... customer complained of vehicle running rough and dying. Customer had vehicle at dealership where they replaced Fuel Volume balance module and reflash PCM. Problem is re-occuring, but is intermittent. Pulled codes and had P0171, p0174 and p0300. Vehicle is ...
July 20, 2011
2000 Jeep Cherokee Classic 4.0L Misfire, MIL Lamp on VIN: 1J4FF48S4Y
P0300: Multiple Cylinder Misfire Detected. Ign coil replaced at different shop for intermittent misfire. Still had intermittent misfire. When misfire starts and ignition is turned off and restarted misfire goes away. Misfire will come back at any time. Can not find any bad wires and everything test ok....
July 20, 2011
2001 Volkswagen Beetle GLS 2.0L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 3VWCB21C21
P0300: Random/multiple Cyl. misfire detected. Car came into the shop this morning with a hesitation when wet, sprayed the wires with water and found the #1 wire was arcing. After replacement the VW would surge and hesitate at any time, removed coil pack and found hairline cracks in the case. After road te...
July 20, 2011
1996 Ford Mustang GT 4.6L Surge, MIL Lamp on VIN: 1FELP42X7T
P0300: Random misfire. Vehicle came in bucking under any load. Light, or heavy, didn't matter. Tested fuel pressure, in spec. Tested maf, low readings. Cleaned, readings went over 100 gpm. Found plugs worn out, wires factory, fuel filter factory, air filter plugged. Changed all tune...
July 21, 2011
2004 Ford Explorer XLS 4.0L No Start, Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire VIN: 1FMZU72K44
P0300: Multiple Cyl Misfire. Truck ran fine on arrival. This truck came in with the belt pulley separated from the balancer. Ordered new balancer from our local ford dealer. Noticed new balancer had been redesigned. Old one had a cast tone ring for the crank sensor while new design has a ...
July 21, 2011
1999 Toyota Sienna LE 3.0L Excessive Emissions, Poor Idle Quality, Hesitation, Stall, Misfire VIN: 4T3ZF13C8X
P0300: Multiple Cylinder Misfire Detected. we have checked and replaced coils injectors igniter crank and cam shaft sensors
July 21, 2011
2004 Ford Explorer XLS 4.0L No Start, Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire VIN: 1FMZU72K44
P0300: Multiple Cyl Misfire. Truck ran fine on arrival. This truck came in with the belt pulley separated from the balancer. Ordered new balancer from our local ford dealer. Noticed new balancer had been redesigned. Old one had a cast tone ring for the crank sensor while new design has a ...
July 22, 2011
1997 Cadillac DeVille 4.6L Misfire VIN: 1G6KD52Y9V
P0300: Engine Misfire Detected. ... service soon light on code po300 multi cylinder misfire. replace spark plugs wires and air filter. two wires were very coroded at coil tower. clear code road tested still feal misfire intermitanly. code p0300 came back. any advice apricieated.
July 25, 2011
1996 Ford Mustang GT 4.6L Surge, MIL Lamp on VIN: 1FELP42X7T
P0300: Random misfire. Vehicle came in bucking under any load. Light, or heavy, didn't matter. Tested fuel pressure, in spec. Tested maf, low readings. Cleaned, readings went over 100 gpm. Found plugs worn out, wires factory, fuel filter factory, air filter plugged. Changed all tune...
July 25, 2011
2003 Nissan Frontier SVE 3.3L MIL Lamp on VIN: 1N6MD26Y93
P0300: Multiple Misfire Detected. ... I've got a family members nissan here, and I'm trying to get any info I can before sending them to their local dealer. He says ever since he's owned the truck (about 5 years)it will flash the mil around 4000 rpm. Mil will usuall turn off shortly or within ...
July 26, 2011
2003 Toyota Corolla CE 1.8L Poor Idle Quality VIN: 1NXBR43E23
P0300: Multiple Cylinder Misfire Detected. hey whats up guys im having trouble with this toyota, the car came in with all these codes, i decided to check fuel system , had a bad fuel pump. check it with scope bad waveform, but the car still runs really bad on idle , [...] at 0volts both all the time , ...
July 26, 2011
2001 Nissan Sentra SE 2.0L Poor Idle Quality, Hesitation, Stall, Misfire VIN: 3N1BB51D91
P0300: Multiple Misfire Detected. ... rough idle at cold start and sluggish feeling when acclerating. Engine light was not on but scanned for codes anyways - P0300 and P0171. Did not find any misfires and system is not running lean. Tried replacing front o2 sensor but did not affect it. Tested...
July 27, 2011
2002 Nissan Frontier SE 3.3L Poor Idle Quality, Hesitation, Misfire VIN: 1N6ED29YX2
P0300: Multiple Misfire Detected. Hello thanks for any help on this one.Vehicle was bought in for rough idle and lack of power on accel.pulled codes and found the usual knock sensor code and random miss code.Replaced knock sensor and intake gaskets.Perfomed tuneup.Still has same problem.Vehicl...
July 27, 2011
2003 Saturn Vue 3.0L Misfire VIN: 5GZCZ63B73
P0300: Random Misfire Detected. Customer came in with vehicle that had codes. Po300 random misfire,[...] #1 misfire,po421 cat eff. low bank 1,p2b03 which I cannot find any info on.I monitored bank 1 o2 sensors and rear o2 mimicing front so I assume cat is faulty.I checked spark plugs and wer...
July 27, 2011
2000 Toyota Camry XLE 3.0L Poor Idle Quality, Misfire VIN: 4T1BF28K2Y
P0300: Multiple Cylinder Misfire Detected. This car came to me after another shop owner pulled all his hair out. He had it for the past three months. There is no "Check Engine" light on but is storing the noted codes. After start up, 2,4 and 6 cylinder misfire and then clears up. I think I have...
July 27, 2011
2000 Volkswagen Passat GLS 2.8L Hesitation VIN: WVWMD23B3Y
P0300: misfire detected. I have this 2000 VW Passat that misses when cold. (check engine light flashes, misfire 1 and 4 cylinders) Once at operating temerature it runs great. I can clear the check engine light and and it will not return until cold again. I have checked compression (13...
July 27, 2011
2003 Nissan Altima 2.5L Poor Idle Quality, Surge, Stall, Misfire VIN: 1N4AL11D43
P0300: Multiple Misfire Detected. ... Manifold/Converter. We replaced the Manifold/Converter and the o2 sensor and that fixed the noise issue. After we replaced the Manifold we noticed the car just ran poorly and the customer said it had been running bad for some time but they thought maybe it...
July 28, 2011
2003 Saturn Vue 3.0L Misfire VIN: 5GZCZ63B73
P0300: Random Misfire Detected. Customer came in with vehicle that had codes. Po300 random misfire,[...] #1 misfire,po421 cat eff. low bank 1,p2b03 which I cannot find any info on.I monitored bank 1 o2 sensors and rear o2 mimicing front so I assume cat is faulty.I checked spark plugs and wer...
July 28, 2011
2000 Volkswagen Passat GLS 2.8L Hesitation VIN: WVWMD23B3Y
P0300: misfire detected. I have this 2000 VW Passat that misses when cold. (check engine light flashes, misfire 1 and 4 cylinders) Once at operating temerature it runs great. I can clear the check engine light and and it will not return until cold again. I have checked compression (13...
July 29, 2011
1998 Mitsubishi Montero Sport LS 3.0L Hesitation, Misfire
P0300: Random Misfire Detected. Hello everyone first time posting. Okay so this vehicle came in for failed smog, the sparks plugs were bad. In order to replace the spark plugs i had to remove the upper and mid intake manifolds, also removed valve covers. After installing everything i went to...
July 30, 2011
2002 Nissan Frontier SE 3.3L Poor Idle Quality, Hesitation, Misfire VIN: 1N6ED29YX2
P0300: Multiple Misfire Detected. Hello thanks for any help on this one.Vehicle was bought in for rough idle and lack of power on accel.pulled codes and found the usual knock sensor code and random miss code.Replaced knock sensor and intake gaskets.Perfomed tuneup.Still has same problem.Vehicl...
July 30, 2011
2004 Honda CR-V EX 2.4L No Start, Misfire, MIL Lamp on VIN: JHLRD77834
P0300: Random Misfire Detected. ... (Intake Manifold Runner Control Valve Position-Low Voltage) and P0300, 301, 302 Misfire. . Car came in with no-start condition. Customer says he has been getting misfire codes for last 3-4 months. Other codes shown which were fixed by replacing component...
July 31, 2011