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P0300 Diagnostic Trouble Code Discussion for April 2005

Multiple Misfire Detected


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Trouble Ticket Help Requests for DTC P0300
Help Request Posted
2004 Ford Crown Victoria 4.6L Surge, Stall VIN: 2FAFP71W54
P0300: Random missfire. Hellow fellow techs this is my 1st post. And its got us puzzled.This is a local Patrol car. When it 1st came in complaint was surge on acceleration,stall intermittantly. We checked fuel pressure OK at40psi. Replaced fuel filter was full of rust. Ran codes had ...
April 01, 2005
2000 Mercedes-Benz ML320 3.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: 4JGAB54E5Y
P0300: multiple cyl misfire. vehicle came in for a misfire. had all codes listed. erased and test drove #6 came back. the longer driven the more came back. now #6 will reset in the stall. I noticed that after it misfires for a few seconds, the injector shuts off. I tried it on another cyl...
April 01, 2005
2002 Chevrolet Express 2500 5.7L Misfire, MIL Lamp on VIN: 1GCFG25R92
P0300: Multiple Cylinder Misfire Detected. ... HOT ENGINE PING ,ONLY UNDER A MED. TO HEAVY LOAD.THE FUEL PUMP WAS REPLACED ALONG WITH A FUEL FILTER.I ALSO PERFORMED A MOTOR-VAC.WHEN THE PINGING BEGINS THE FUEL PRESSURE DOES NOT DROP IN-FACT IT INCREASES A LITTLE DUE TO THE VAC. LOOSE.THE CUSTOMER COMPL...
April 02, 2005
2000 Mercedes-Benz ML320 3.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: 4JGAB54E5Y
P0300: multiple cyl misfire. vehicle came in for a misfire. had all codes listed. erased and test drove #6 came back. the longer driven the more came back. now #6 will reset in the stall. I noticed that after it misfires for a few seconds, the injector shuts off. I tried it on another cyl...
April 04, 2005
1997 Chevrolet Blazer 4.3L Stall, Misfire, MIL Lamp on VIN: 1GNDT13W6V
P0300: Multiple Cylinder Misfire Detected. ... complaint of misfire @ bogging on accel another shop had replace fuel pump,egr valve @plugs cheked codes had ap0300 missfire.under accel engine would start bogging @ missing until it died .checked fp 50psi @idle held fp when engine was shut off .checked va...
April 05, 2005
1999 Chevrolet Blazer 4.3L Hesitation, Surge, Misfire, MIL Lamp on VIN: 1GNDT13WOX
P0300: Multiple Cylinder Misfire Detected. Hello, this Blazer came to us from another shop in a basket. They were going to put in a cam and lifters but owner said no. He authorised us to put in a Jasper reman unit. We did so and owner put on approx 4000 miles with no problems. Now the owner states that...
April 06, 2005
2000 Buick LeSabre Custom 3.8L Misfire VIN: 1G4HP54K3Y
P0300: Engine Misfire Detected. car came in with engine missing on cylinder #1 ignition spark & fuel pressure tested ok & no vacuum leaks found, we replaced #1 injector & fixed problem. about 3 weeks later car was back with miss again this time on cylinder #5, we did a fuel injec...
April 11, 2005
1996 Dodge B1500 5.2L Misfire VIN: 2B7HB11Y3T
P0300: Multiple Cylinder Misfire Detected. ... sometimes and other times it will happen all day. van came in for failing obd2 test for inspection with all p0300,p0301 thru p0308 codes--every misfire code. it was at another shop which did complete tune,coil,and distributo...
April 11, 2005
1999 Toyota Camry LE 2.2L Poor Idle Quality, Cuts out, Misfire VIN: JT2BG28K4X
P0300: Multiple Cylinder Misfire Detected. This vehicle came from another shop about 1 mo. ago. Rough idle, hesitation on accelleration, above misfire codes. Shop had previously replaced plug wires and 1-4 ignition coil, and car was running good. Then misfire started again, same codes. After examinatio...
April 11, 2005
1998 Toyota 4Runner Limited 3.4L Poor Idle Quality, Stall, Misfire, MIL Lamp on VIN: JT3HN87R8W
P0300: Multiple Cylinder Misfire Detected. This 4Runner has a miss at Idle when hot only.The three cyls. are the driver side bank only. When idleing the Mil.light will flash to show mis is happening. I have replaced plugs, Plug wires,tried new coil on 1,3,5 cyls. Didnt help. Checked cam timing OK, chec...
April 12, 2005
2001 Chevrolet Camaro 3.8L Cuts out, Misfire, MIL Lamp on VIN: 2G1FP22K31
P0300: Multiple Engine Misfire Detected. this vehicle misfires bad under heavy loads and spark knocks real bad, thought plug wires were cross firing they helped a little but did not fix whole problem. plugs are ok. it would seem that something in the primary ignition system is having a problem. one o...
April 14, 2005
1998 Dodge Ram 1500 Truck 5.2L Hesitation, Misfire, MIL Lamp on VIN: 3B7HC13Y4W
P0300: Multiple Cylinder Misfire Detected. ... power, chk engine light on & engine miss. We have only the miss fire codes to go on. fuel pressue is 49 lbs. I hav'nt had the so called loss of power, but i will feel the intermintant engine miss @ cruise & idle. clear codes and the next test drive...
April 14, 2005
1997 Jeep Cherokee Country 4.0L Misfire, MIL Lamp on VIN: 1J4FJ78S9V
P0300: Multiple Cylinder Misfire Detected. Vehicle in with CEL on, No driveability complaints from cust. Sets misfire codes. Can watch misfires occur with DRBIII on all cylinders except #3. Only counts at RPM 1880 - 2050. Anything above or below counting stops. Scoped cam and crank sensors sync looks d...
April 15, 2005
2001 Isuzu Rodeo LS 3.2L Hesitation, Surge, Misfire, MIL Lamp on VIN: 4S2DM58W81
P0300: Multiple Cylinder Misfire Detected. checked oxygen sensors on both banks. found sensors work as normal operation. after a few minutes one of the sensors, not both at the same time, will drop off to zero. It will alternate which bank shows zero volts from the pre cat oxygen sensors. both sensors ...
April 18, 2005
2003 GMC Savana 3500 6.0L Misfire, MIL Lamp on VIN: 1GDJG31U53
P0300: Multiple Cylinder Misfire Detected. random missfire code p0300 sets,intermittent missfire complaint, missfire history cly's #2,#4,#6,#8.all data good on freeze frame. #6 & #8 cly's have more history misses allready checked per iatn fixes, nothing found except ? #6 & #8 injectors. THANKS
April 20, 2005
1996 Chrysler Cirrus LX 2.5L Misfire, MIL Lamp on VIN: 1CE3J56H7T
P0300: Multiple Cylinder Misfire Detected. This car has a MIL lamp on. It will come on after 1 long or two complete drive cycles after clearing. This takes the customer a week of in town driving or 10 minuits of highway driving. 99% of the time you need to reach 73 mph and let off of the throttle with ...
April 22, 2005
2001 Isuzu Rodeo LS 3.2L Misfire, MIL Lamp on VIN: 4S2DM58W51
P0300: Multiple Cylinder Misfire Detected. ... with a flashing SES light, light on steady @ idle. after poking around and inpsecting spark plugs, boots and coils miss appears to be gone. The p0300 will reset and flash on acceleration, with no apparent missfire. My scan capabilities(Snap-On and Ease) do...
April 22, 2005
2001 Isuzu Rodeo LS 3.2L Misfire, MIL Lamp on VIN: 4S2DM58W51
P0300: Multiple Cylinder Misfire Detected. ... with a flashing SES light, light on steady @ idle. after poking around and inpsecting spark plugs, boots and coils miss appears to be gone. The p0300 will reset and flash on acceleration, with no apparent missfire. My scan capabilities(Snap-On and Ease) do...
April 23, 2005
1996 Pontiac Sunfire SE 2.2L Poor Idle Quality, MIL Lamp on VIN: 3G2JB1243T
P0300: Multiple Engine Misfire Detected. hello guys, this ones got me stumped. we have a misfire showing on cylinder # 2 and # 4 on the scanner. nothing out of ordinary showing on data besides misfires. fuel pressure is good. thinking ign. module not sure this is my sisters car so i'm working at the ...
April 23, 2005
2001 Chevrolet S10 LS 4.3L Misfire, MIL Lamp on VIN: 1GCDT13W21
P0300: Multiple Engine Misfire Detected. Came in with misfire code in computer Cleared codes drove 1 mile.mil light came back on found hole in.no. 4 plug wire.We replaced all plug wires. Took for drive light didn,t come back on right away. but still showing random misfire on 1 and 4 pulled all plugs ...
April 24, 2005
1997 Saturn SC2 1.9L Misfire VIN: 1G8ZG1277V
P0300: Random Misfire Detected. this car shows missfires on cylinders 1&4 engine runs great though, you see them at cruise somtimes but they really show up on decell , crank is in sync, car also has new wires & plugs , coil packs check out & switched them with 2&3 with same r...
April 25, 2005
1999 Volkswagen Jetta GLS 2.0L Hesitation VIN: 3VWSC29M7X
P0300: general misfire. Customer dropped off vehicle and complained about poor running and a real bad hesitation. Verified complaint. Secondary ignition wires were arcing all over. Replaced ignition wires and throughly cleaned coil pack assembly. Checked coolant temp sensor-was readi...
April 25, 2005
1998 Pontiac Grand Prix GTP 3.8L Misfire, MIL Lamp on VIN: 1G2WP5218W
P0300: Multiple Engine Misfire Detected. ... get involved in this car. The car belongs to my week old wifes sister. Code P1629 is not one that I am to familar with; I think that it has something to do with the ingition switch. Code P1646 comes on right after you cle...
April 27, 2005
1997 Saturn SC2 1.9L Misfire VIN: 1G8ZG1277V
P0300: Random Misfire Detected. this car shows missfires on cylinders 1&4 engine runs great though, you see them at cruise somtimes but they really show up on decell , crank is in sync, car also has new wires & plugs , coil packs check out & switched them with 2&3 with same r...
April 27, 2005