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P0300 Diagnostic Trouble Code Discussion for July 2010

Multiple Misfire Detected


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Trouble Ticket Help Requests for DTC P0300
Help Request Posted
1999 Chrysler 300M 3.5L Poor Idle Quality, MIL Lamp on VIN: 2C3HE66G6X
P0300: Multiple Cylinder Misfire Detected. ... shop last week overheating and with a check engine light on. We replaced the fan assembly to fix the o/heat condition, and checked the codes. At the time it had a p0300-random cyl. misfire. I had cleared the codes out and le...
July 01, 2010
2000 Volkswagen Passat GLS 2.8L Misfire, MIL Lamp on VIN: WVWND23B1Y
P0300: Multiple Misfire. ... codes 16684/P0300 Multiple Misfire, 16688/P0304 Misfire Cyl 4, 16690/P0306 Misfire Cyl 6, 16689/P0305 Misfire Cyl 5, 17539/P1131 O2 Bank2 Sensor 1 Internal resistance to high, 16685/P0301 Misfire Cyl 1. Cleared ...
July 02, 2010
2001 Pontiac Montana 3.4L Poor Idle Quality VIN: 1234567899
P0300: Multiple Cylinder Misfire Detected. idels roungh till turn air conditioning on then smothins out this is the same van that was posted earlyer this mouth miss manley on cylinder 5 still.parking lights will flicker when this happens when turning on air they will stop flashing and engine smoths out...
July 04, 2010
2005 GMC Sierra 1500 SLE 5.3L Poor Idle Quality, Misfire, MIL Lamp on VIN: 2GTEC13T05
P0300: Multiple Cylinder Misfire Detected. Thanx in advance for any help on this one. came in misfire checked plugs wires coils,cleaned mas air sensor it kind of felt like a vacuum leak sprayed none found thought intake may be leaking underneath replaced intake gaskets no help compression good pulled f...
July 07, 2010
1999 Audi A4 Quattro 1.8L Misfire VIN: WAUCB28D0X
P0300: Random Multiple Cylinder Misfire Detected. Car pings under slight load. Checked injector spray patterns, ok, fuel pressure ok, maf readings seam normal, checked for spark on cylinder 2 ok, swapped plugs, swapped coils, swapped injectors, misfire stays on cylinder 2, compression is good, checked wiring ...
July 08, 2010
2000 Nissan Frontier XE 3.3L Excessive Emissions VIN: 1N6ED27T0Y
P0300: Multiple Misfire Detected. compression checked Ok. Major tune up done. Injector resistance Ok.Fuel pressue Ok . Still misses with high emissions , any ideas . Could it be injectors? Thanks in advance for all.
July 12, 2010
2000 Volkswagen Jetta GLS 2.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: 3VWSE2902Y
P0300: random misfire. Hello, 5:30 am here S.F. time. I have had this car for a couple days and am trying to get to the bottom of this problem. Customer I think is not excited that I did not fix it right away. This is a VR6 Jetta. Came to me with C.E. light on. Rattle when revving...
July 12, 2010
2005 Volkswagen Jetta 2.5 2.5L Poor Idle Quality, MIL Lamp on VIN: 3VWSF71K25
P0300: multiple missfires. ... position A" timing over advanced or system performance bank 1. Code P0016 (VW code number 17748) cam and crank position sensor signals out of sequence.. Code P0300 multiple misfires random cylinders. Im not sure where to ...
July 14, 2010
2004 Audi S4 4.2L Misfire, MIL Lamp on VIN: WAUPL68E64
P0300: Random misfire. Replaced left(Bank 2) Cam Sensor and erased codes. Codes reappeared within 25 miles of driving. I assume the random misfire codes were due to the sensor problem. Car has lost some of it power. Two months ago valve cover gaskets replaced. I do not have a VAG to...
July 15, 2010
2006 Kia Sorento LX 3.5L Stall, MIL Lamp on VIN: KNDJC73376
P0300: Multiple Misfire Detected. ... getting this thing fixed is the most important thing! Customer states vehicle will run rough after a long trip, at least 3hrs of driving. I have taken it on numerous test drives and let it idle in the heat. I have got it to mess up once and when it did i w...
July 15, 2010
2004 Porsche 911 Carrera 4S 3.6L MIL Lamp on VIN: WPOCA29924
P0300: misfire detection total. Car starts and runs ok until warm, at which point some part throttle misfiring can be felt.
July 16, 2010
2001 Volkswagen Golf GL 2.0L Misfire, MIL Lamp on VIN: 9BWGT61J71
P0300: Random Misfire. Of course, this is a relatives car. Tried another new MAF sensor. Same thing. We are at a loss on this. It does it on first start, stops after a few minutes.
July 17, 2010
2001 Mitsubishi Eclipse Spyder GT 3.0L Misfire, MIL Lamp on VIN: 4A3AE55H41
P0300: Random Misfire Detected. Good Morning, this car came to us with 1 fault code=po135 "B1S1 O2 heater circuit fault" we replaced this sensor and the threads in the manifold came apart so we installed a "bung" insert. The car has 100K miles on it so we replaced the timing ...
July 18, 2010
2000 Chevrolet Tahoe LT 5.3L Misfire, MIL Lamp on VIN: 1GNEK13T3Y
P0300: Multiple Cylinder Misfire Detected. Greetings fellow techs, Got one in today that driving us a little crazy. 2000 Chevrolet Tahoe 5.3 came in today with a MIL light and misfire. Customer stated that the truck just started running rough, MIL light came on (and flashed a couple times)After finding...
July 19, 2010
1997 Ford Explorer XLT 4.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FMDU32E1V
P0300: Random misfire. Hello to all and thanks in advance for your help. This is for my own car . There was a little rapping noise at the top of the engine and the cylinder on bank 2 ( cyl 4-5-6 ) misfire all the time i did acompresion test on this bank and it has 145 all of them an...
July 19, 2010
1999 Honda Civic EX 1.6L Misfire VIN: 1HGEJ864XX
P0300: Random Misfire Detected. ok honda guys im at your mercy this car has a misfire on all cyl only under load when cold codes set at 120f ect fuel pressure is good when occurring only last a short while then clears until vehicle cools for a while i havent been able to scope crank n cam wh...
July 19, 2010
2004 Nissan Xterra XE 3.3L Poor Idle Quality, Misfire, MIL Lamp on VIN: 5N1ED28Y94
P0300: Multiple Misfire Detected. Hello all- got one im a little confused on here-this xterra came in with o2 high voltage codes present- hooked up scanner in the bay and watched 02, b1 and b2, all seems pretty normal-graphed b1 and b2- all seems normal-ranging above and below .5 so okay, grap...
July 19, 2010
2002 Nissan Frontier XE 3.3L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1N6ED29Y92
P0300: Multiple Misfire Detected. vehicle has slight miss at idle, service engine light flashes at idle, when driving vehicle runs good.
July 20, 2010
2006 Volkswagen Passat 2.0T 2.0L Misfire, MIL Lamp on VIN: WVWAK73C66
P0300: randon missfire. Have a passat here with a inter. missfire mainly under load and warm keeps returning missfire for #4 cylinder car runs great all other times and it has to be good and warm before it starts and it is very intermitant tried switching the new coil to #2 cylinder ...
July 23, 2010
2002 Dodge Grand Caravan EX 3.8L Poor Idle Quality, MIL Lamp on VIN: 2B4GP74L22
P0300: Multiple Cylinder Misfire Detected. Running poorly, highway and idle. Never died. Ckd codes, had random and specific cylinder misfires. Scoped. Had original coil, weak, replaced. No difference. Interesting fact: with a/c off 18 inches of vacuum; a/c on, drops to 10 inches of vacuum. Also, a very...
July 26, 2010
2005 Kia Sportage LX 2.7L No Start, Stall, MIL Lamp on VIN: KNDJE723X5
P0300: Random Cylinder Misfire Detected. Customer drove in this morning and stated she got on highway and vehicle died,all light on dash illuminated. Engine turned over but would not restart. After 3-4 trys engine started and ran normally. We are unable to duplcate her concern.
July 26, 2010
2003 BMW 760Li 6.0L MIL Lamp on VIN: WBAGN83403
P0300: Muli misfire. Engine misfires at all times. Code returns as soon as you start engine. This is my first V12 thanks for any help.
July 27, 2010
2005 Cadillac CTS 3.6L Misfire, MIL Lamp on VIN: 1G6DP56745
P0300: Engine Misfire Detected. This Caddy runs on 3 cylinders. Numbers 1,3,and 5 are always missing. I checked the database and found a few of these cars with pugged cats, so I pulled the primary o2 sensor on bank #1 - no change. I suspect this camshaft actuator has all the intake valves ti...
July 27, 2010
2008 Ford F-250 Super Duty XLT 5.4L Misfire VIN: 1FTSX215X8
P0300: Random misfire. This truck came in on the hook no start. Fuel psi was low took a fuel sample water and a milky slimy subtance drained the tank and replaced the fuel module and filter and did a motor vac fuel system cleaning. Now when the truck is hot somtimes just off idle mi...
July 27, 2010
2001 Chevrolet Cavalier 2.2L Stall VIN: 1G1JC52471
P0300: Multiple Engine Misfire Detected. I may be chasing my tail with this one, if I recall it is probably an ignition switch however the problem is too intermittent to find. It will occur once and not again for some time. The car will occasionally stall when placed into gear, then restart immediate...
July 28, 2010
2003 Pontiac Grand Prix GT 3.8L Misfire VIN: 1G2WP52K83
P0300: Multiple Cylinder Misfire Detected. Car came into shop with misfire code P0300 SES lit on, no other codes. Scanned it out and cylinder #6 had the biggest history of misfires 5047, the rest of the cylinders had low numbers 6 thru 55. Covered ignition system new AC plugs-swapped wires between cyli...
July 28, 2010
2004 Audi S4 4.2L Misfire, MIL Lamp on VIN: WAUPL68E64
P0300: Random misfire. Replaced left(Bank 2) Cam Sensor and erased codes. Codes reappeared within 25 miles of driving. I assume the random misfire codes were due to the sensor problem. Car has lost some of it power. Two months ago valve cover gaskets replaced. I do not have a VAG to...
July 30, 2010
2005 Volkswagen Jetta 2.5 2.5L Poor Idle Quality, MIL Lamp on VIN: 3VWSF71K25
P0300: multiple missfires. ... position A" timing over advanced or system performance bank 1. Code P0016 (VW code number 17748) cam and crank position sensor signals out of sequence.. Code P0300 multiple misfires random cylinders. Im not sure where to ...
July 30, 2010
2001 Chevrolet Express 2500 5.7L Hesitation, Misfire, MIL Lamp on
P0300: Multiple Cylinder Misfire Detected. Continuous code is the EGR pintle position code due to the egr command is more than 10 percent differnet than what the pintle position really is. This happens intermittantly even with the new EGR. Upon acceleration a distinct loss of power is felt. Code P0101 ...
July 31, 2010