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P0300 Diagnostic Trouble Code Discussion for November 2006

Multiple Misfire Detected


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Trouble Ticket Help Requests for DTC P0300
Help Request Posted
2001 Volkswagen Passat GLS 1.8L Misfire VIN: WVWPD63B51
P0300: multi-cyl misfire. No history...claims dealer maintained however quick lub oil changes with conventional oil. Showed up w/ oil pressure warning symptoms, confirmed 1.5bar oil pressure at idle and 2.8bar at 2k rpm. (spec 3-4.5 bar at 2k) Removed oil pan suspecting a plugged pick ...
November 01, 2006
1998 Dodge Avenger ES 2.5L MIL Lamp on, CEL Flashes VIN: 4B3AU52N5W
P0300: Multiple Cylinder Misfire Detected. Ok,,, Here we go again. We have a 98 Avenger in here that the cuatomer purchased from a used car lot. Has a check engine light that flashes intermittently. Sometimes will flashes 25-30 times or more, sometimes it will flash once or twice. Usually happens after...
November 02, 2006
2001 Toyota Sienna CE 3.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 4T3ZF19C41
P0300: Multiple Cylinder Misfire Detected. ... here. Customer stated got bad tank of gas. Started to run rough 1 mile from gas station, added stp, didnt help. I got van, ran very rough, had p0300, random miss. Miss counters verivied it was randomly missing. Since she said it started afet fill up, drain...
November 02, 2006
2001 Volkswagen Passat GLS 1.8L Misfire VIN: WVWPD63B51
P0300: multi-cyl misfire. No history...claims dealer maintained however quick lub oil changes with conventional oil. Showed up w/ oil pressure warning symptoms, confirmed 1.5bar oil pressure at idle and 2.8bar at 2k rpm. (spec 3-4.5 bar at 2k) Removed oil pan suspecting a plugged pick ...
November 02, 2006
1999 Chevrolet Malibu 2.4L Poor Idle Quality, Surge, Cuts out, Stall, Misfire, MIL Lamp on, CODE PO300 VIN: IGIND52T6X
P0300: Multiple Cylinder Misfire Detected. ok here we go this car was running about the same as before as it is now the dtc was po300 random misfire i have a snap on modis so i looked at misfire data all cyclinders were misfireing current and had history misfire for all cyclinders 70k i asked cust for ...
November 03, 2006
1996 Ford Thunderbird LX 3.8L No Start VIN: 1FAIP6246T
P0300: random misfire. hello group car came in on hook...cust has already bought a fuel pump..tell me how much to install it...i told him i need to check vehicle out first. fuel pressure is within specs n holding and im gettin a injector pulse. i checked for codes and had a random m...
November 04, 2006
1996 Oldsmobile Bravada 4.3L Excessive Emissions, Poor Idle Quality, Surge, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 16HDT13W9T
P0300: Multiple Cylinder Misfire Detected. At this time engine surges at idle, engine is rough at idle. Mifire counters show cylinders 1,3 & 5 misfireing at idle. As soon as throttle is moved off of idle misfired disappear, surge disappears and engine vacuum climbs to a normal 18-19 in HG. I have p...
November 04, 2006
1996 Chevrolet Lumina APV 3.4L Hesitation, Surge, Stall, Misfire VIN: 1NGDUO6D1R
P0300: Multiple Cylinder Misfire Detected. The van came in with a fuel leak so i went a head and replaced the fuel sender unit and the fuel pump for pm. About a day later the van came back bucking hestation and stalling. The check engine light was on with a random multiple missfire. I replaced the ignt...
November 05, 2006
1996 Oldsmobile Bravada 4.3L Excessive Emissions, Poor Idle Quality, Surge, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 16HDT13W9T
P0300: Multiple Cylinder Misfire Detected. At this time engine surges at idle, engine is rough at idle. Mifire counters show cylinders 1,3 & 5 misfireing at idle. As soon as throttle is moved off of idle misfired disappear, surge disappears and engine vacuum climbs to a normal 18-19 in HG. I have p...
November 07, 2006
1998 Volkswagen Golf GL 2.0L Excessive Emissions, No Start, Poor Idle Quality, Hesitation, Cuts out, Stall, Misfire, MIL Lamp on VIN: 3VWFA81HXW
P0300: Random Misfire. Car was towed in with crank but no start condition. There was no signal from engine speed sensor (crank sensor) and needed a tune-up. Replaced crank sensor, spark plugs, ignition wires, fuel filter, distributor cap, distributor rotor. The engine has a hard tim...
November 07, 2006
2000 Mercury Sable GS 3.0L Surge, MIL Lamp on VIN: 1MEFM58U3Y
P0300: random misfire. car came in with ses light on and some other unrelated complaints found large list of codes indicating fuel system wasn,t working well running system lean fuel pressure test came back with koeo 28 psi and koer about 8 psi so not even close to pressure spec. we...
November 08, 2006
1997 Nissan Pathfinder LE 3.3L MIL Lamp on VIN: JN8AR05Y4V
P0300: Multiple Misfire Detected. ... THIS PATHFINDER CAME IN W/ MIL ON AND P0300 STORED. CUSTOMER SAID THE TRUCK WOULDN'T REV PAST 3,000 RPM. NEEDED TUNE UP. REPLACED CAP, ROTOR, WIRES, AIR AND FUEL FILTERS, PCV AND BOTH UPSTREAM O2 SENSORS...ALL FACTORY REPLACMENT PARTS. CLEANED THROTTLE BOD...
November 08, 2006
2000 Mercury Sable GS 3.0L Surge, MIL Lamp on VIN: 1MEFM58U3Y
P0300: random misfire. car came in with ses light on and some other unrelated complaints found large list of codes indicating fuel system wasn,t working well running system lean fuel pressure test came back with koeo 28 psi and koer about 8 psi so not even close to pressure spec. we...
November 09, 2006
2005 Ford F-250 Super Duty Lariat 5.4L Misfire VIN: 1FTSX21545
P0300: Random Misfire Detected. Misfire under hard acceleration, feels like loosing a plug. Checked one plug with great difficulity. Tried to gaulled the threads when removed. We are also going to preform an update Ford TSB O6-3-3,which states to replace with latest uopdated plugs. HAS A...
November 10, 2006
1996 Chevrolet Blazer 4.3L Excessive Emissions, Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GNDT13W7T
P0300: Multiple Cylinder Misfire Detected. i sure hope somebody can help me with this one, i have tried everything i know to get this misfire out, it came to me like this, and nothing seems to help. first tried to scan got no comunication, replaced ecm, then got codes, next found dead cylinders fuel fo...
November 11, 2006
1997 Cadillac DeVille 4.6L Poor Idle Quality, Cuts out VIN: 1G6KD54Y4V
P0300: Engine Misfire Detected. Vehicle hard to start when cold and only cold. It exhibits misfires on cyl 1 and cyl 2. I pulled all plugs and let it sit overnight with cooling system pressured it dropped a bit but I didnt see any coolant in the cylinders. I changed coils around to see if th...
November 13, 2006
2002 Honda S2000 2.0L Misfire, MIL Lamp on VIN: JHMAP114X2
P0300: Random Misfire Detected. Car was brought to me because it fail Illinois emission test. Has an idle miss seems to be on cylinder 4. Replaced plugs and adjusted valves. Found all exhaust valves a little tight. Did cylinder leakage and tests good on all cylinders. Compression is good. Di...
November 13, 2006
2001 Pontiac Grand Prix GT 3.8L Hesitation, Cuts out, MIL Lamp on VIN: 1G2WP12K41
P0300: Multiple Cylinder Misfire Detected. This 2001 Pontiac Grand Prix is in the shop right now. It idles fine, and runs fine up to about 4000RPM. Then it starts missing and shaking all over. Fuel pressure and volume are OK, fuel filter is fine, spark is good across RPM band, MAF, MAP, HO2S, TP all re...
November 13, 2006
2003 Chevrolet Cavalier 2.2L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 1G1JC52F13
P0300: Multiple Engine Misfire Detected. The first time the vehicle came in it had multple cyl. misfires. checked and found #2 & #3 misiing spark. checked allsystems and replaced ba plugs and coil pack and boots. a month later vehicle came back with same problem. Checke again and found no signal ...
November 14, 2006
1997 Chevrolet Astro 4.3L Hesitation, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GNDM19W4V
P0300: Multiple Cylinder Misfire Detected. Scope checked crank sensor and ignition module, both ok. Checked cat back pressure and its good. Fuel pressure is right on. Seems to be worse in damp weather but I cant find anything when spraying with water. What am I missing ?
November 15, 2006
2001 Volkswagen Cabrio GLS 2.0L Excessive Emissions, No Start, Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 3VWCC21V81
P0300: Multiple misfire. Vehicle came in on tow truck stall while driving and no start ce light on . checked had very weak spark from wires, but good from coil. Noticed new coil and plugs.replaced plugs cap rotor, air and fuel filt. wires tested ok. vehicle was very hard to start afte...
November 15, 2006
1996 Chevrolet Blazer 4.3L Poor Idle Quality, Hesitation, Cuts out, Misfire, MIL Lamp on VIN: 1GNCT18W4T
P0300: Multiple Cylinder Misfire Detected. I've been playing with this vehicle off and on for about a month now...(belongs to a friend) The only code present is a misfire code... I can get this thing to do it almost all the time but it is really bad when its cold. It hesitates on take of, and at part t...
November 16, 2006
2003 Chevrolet Cavalier 2.2L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 1G1JC52F13
P0300: Multiple Engine Misfire Detected. The first time the vehicle came in it had multple cyl. misfires. checked and found #2 & #3 misiing spark. checked allsystems and replaced ba plugs and coil pack and boots. a month later vehicle came back with same problem. Checke again and found no signal ...
November 16, 2006
1998 Pontiac Grand Prix GTP 3.8L Misfire VIN: 1G2WP5218W
P0300: Multiple Engine Misfire Detected. po300 random cyl misfire. Customer droped it off the night before. I got in it first thing in the morning with the scan tool and looked at all the cylinders to see which ones were misfiring. All cylinders were misfireing and I could barly drive it. Then it cle...
November 16, 2006
2000 Saab 9-3 2.0L Poor Idle Quality, Surge, Stall VIN: YS3DD58H6Y
P0300: Random Misfire. Replaced blown motor with know good used motor from Goldwing dismantlers(Saab Specialist). Car starts and idles great except for when you go off idle. Its starts surging and stalls, especially in gear with a load. Fuel pressure fine at 35 lbs. Car is loading u...
November 16, 2006
2001 Nissan Sentra XE 1.8L Misfire, MIL Lamp on VIN: 3N1CB51D52
P0300: Multiple Misfire Detected. ... drove in morning, and CEL came on within a few miles under light acceleration. Sets p0300- random misfire. Checked coils and plugs- fine. Cleaned hot wires on airflow meter- no change. I took the computer apart and did not see any contamination from the fo...
November 17, 2006
1999 Volkswagen Beetle GL 2.0L Misfire, MIL Lamp on VIN: 3VWCA21COX
P0300: multiple cylider misfire. customer complaints of a slight misfire mostly when vehicle is cold but it has happened when hot also every time the cars comes to my shop it seems to be working perfect.
November 17, 2006
1997 Chevrolet Cavalier Z24 2.4L Misfire, MIL Lamp on VIN: 1G1JF12T5V
P0300: Multiple Engine Misfire Detected. good afternoon everyone. i have a problem with this cavalier. it eats up a coil housing about every month.i havge replacede three housing in the last three months.both coils/igntion module/cam and crank sensors have been replaced.so have plugs and plug boots.m...
November 20, 2006
2002 Chevrolet Silverado 1500 4.3L MIL Lamp on VIN: 1GCEC14W42
P0300: Multiple Cylinder Misfire Detected. Hello fellow techs, Here is a challenge, this truck has been to the dealer several times and could not be fixed. It has a code for a misfire and for a bad converter. Only problem is that it doesn't have a miss. And, the dealer just put new converters on it. Ou...
November 21, 2006
1997 Chrysler Town & Country (Van) LXi 3.8L No Start VIN: 1C4GP64L7V
P0300: random mi. ... it had quit on the road and would not start. After sitting over night I started it and drove it in the shop. Scanner showed P0171 lean condition and P0300 random misfire. I checked the fuel filter and found it plugged. Changed the filter and vehicle ran fi...
November 21, 2006
2001 Toyota Tundra Limited 4.7L Hesitation, Misfire, MIL Lamp on VIN: 5TBBT48151
P0300: Multiple Cylinder Misfire Detected. Hi guys I have a wierd problem. This truck came in for the timing belt and water pump to be replaced as a standard service procedure. I replaced every thing and put truck back together an took on a test drive. It had no power, a misfire, and hard shifting. So ...
November 21, 2006
1996 Mercedes-Benz C280 2.8L Hesitation, Misfire, MIL Lamp on VIN: WDBHA28E9T
P0300: general misfire. Vehicle came in not running. First two codes turned out to be the overvoltage protection relay faulty. The misfire codes showed up after driving the car for about 5 miles. We checked the secondary ignition and decided to replace the ignition wires and connecto...
November 22, 2006
2000 Toyota Celica GT 1.8L Poor Idle Quality, Misfire VIN: JTDDR32TXY
P0300: Multiple Cylinder Misfire Detected. when first started cold, cyl 2 and 3 show heavy misfire. After a few seconds they come alive. Idle seems a little rough but the problem is when you take off, vehicle falls on its face, pops through intake with heavy spark knock. at higher rpm, the car seems to...
November 22, 2006
1997 Chevrolet Monte Carlo LS 3.1L Misfire VIN: 2G1WW12M3V
P0300: Multiple Engine Misfire Detected. I am having trouble with this car. The check engine light is on with a multiple missfire code. As you drive the car the engine light flashes aswell. When you watch the missfire counters cylinder #4 shows a miss. It is not severe enough for you to feel the engi...
November 24, 2006
2003 Chevrolet Trailblazer North Face 4.2L Hesitation, Surge, Cuts out, Misfire, MIL Lamp on VIN: 1GNDT13S73
P0300: Multiple Engine Misfire Detected. Hi everybody this one has me twisted. Checked data stream and everything looks normal. vehicle holds back under accel. The more gas you give it the more it holds back. I actually got the vehicle to slow down going down hill while accelerating. There are no tra...
November 27, 2006
1997 Ford E-350 Econoline 6.8L Misfire VIN: 1FBJS3151V
P0300: Random Mulitple Misfire. ... misfire. Customer agreed for tune up (new plugs ann brand new coil over plug boots), still misfiring. Cleaned up MAF, checked for vacuum leaks - good. P0300 Random Misfire. Scan Data gives the following freeze frame: RPM 2223 Calc Load % 83.9 Coolant ...
November 27, 2006
2003 Chevrolet Express 2500 4.8L Misfire VIN: 1GCGG2SV63
P0300: Multiple Cylinder Misfire Detected. Good Morning everyone. We need some help on this one. Came in w/ a missfire code and Po351 coil circuit code. Van needed tune up, all looked original. We did the tune and replaced #1 cyl coil just for insurance. Came back w/ both codes again. We test drove and...
November 28, 2006
2004 Pontiac Sunfire SE 2.2L Excessive Emissions, Cuts out, Misfire, MIL Lamp on VIN: 1G2JB12F64
P0300: Multiple Engine Misfire Detected. ... assistance with this Ecotech motor. Customer complaint was misfire and MIL. Upon connection of my Tech2 scan tool, I pulled the P0300. I was concerned about the low mileage, so I looked for TSBs. I found the one about the updated spark plugs. The customer ...
November 28, 2006
1999 Chrysler Sebring JX 2.5L Hesitation, Cuts out, Stall, Misfire, MIL Lamp on VIN: 3C3EL45HXX
P0300: Multiple Cylinder Misfire Detected. After repair car started and ran fine. Shook a little on start up but only lasted a split second. I test drove car and seemed good. Customer picked it up and was back about 2 days later complaining about rought run on start up. We could not reproduce the probl...
November 29, 2006
2001 Mazda Protege ES 2.0L Stall, Misfire, MIL Lamp on VIN: JM1BJ22581
P0300: Multiple Misfire Detected. ... my sisters car has great maintance. The problem is intermittenly check engine light and rough idle and will not move when trying to accelerate. Problem seems to occur after coming to a stop, and then trying to go again. Car has tune up, new EGR valve from ...
November 30, 2006