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P0303 Diagnostic Trouble Code Discussion for May 2016

Cylinder 3 Misfire Detected *

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Trouble Ticket Help Requests for DTC P0303

	Help Request	Posted
	2010 Honda Accord LX 2.4L Surge, Misfire, MIL Lamp on VIN: 1HGCP2F34A P0303: Misfire 3 same as above. ... data recorder for a month and saw nothing. almost 3000 miles since last issue with the same concern, this time, flashing MIL, set codes p0300, 302 and p0303, but no p0339. No misfire felt at idle, but MIL still flashes and sets code. Definite issue with mi...	May 03, 2016
	2009 Ford F-450 Super Duty 6.8L Misfire, Knock VIN: 1FDAF47Y79 P0303: Misfire Cylinder 3. This is one of those that has me second guessing myself. So, the customer said the engine started knocking Wednesday, then the check engine light came on a little later. We spent the day yesterday checking things out. The knock doesn't sound like a rod knock, ...	May 06, 2016
	2002 Volkswagen Jetta GLS 2.0L Misfire, MIL Lamp on VIN: 3VWSB69M32 P0303: misfire at cyl 3. ... and the check engine light is flashing. At first I had only a P0304 and P0300. I replaced the plugs, wires, and coilpack with OE parts. I still had a P0304 and noted miss. I put a noid light on number 4 injector and it flashed, showing the injector is gett...	May 06, 2016
	2013 Kia Optima EX 2.4L Stall, Misfire VIN: 5XXGN4A72D Vehicle runs rough at idle and low engine vacuum. At cruise car runs fine. I get a missfire in #3 and #4 cylinders have switched coils and fuel injectors still missfire on 3&4 cylinders. Compression is 180 on all cylinders. Cam timing has been double che...	May 10, 2016
	2006 Acura MDX Touring 3.5L Misfire, MIL Lamp on VIN: 2HNYD18876 P0303: Cylinder 3 Misfire Detected. We have been at this one for several visits now. Right now intermittent misfires on #2,5,6 at idle, but sets codes for all cyls. if driven a while, also p0300. Runs OK while under way. I also tried a known good EGR valve from another car. Nothing we have done ...	May 11, 2016
	2009 Ford F-450 Super Duty 6.8L Misfire, Knock VIN: 1FDAF47Y79 P0303: Misfire Cylinder 3. This is one of those that has me second guessing myself. So, the customer said the engine started knocking Wednesday, then the check engine light came on a little later. We spent the day yesterday checking things out. The knock doesn't sound like a rod knock, ...	May 12, 2016
	1997 Porsche Boxster 2.5L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, MIL Lamp on VIN: WP0CA2987V P0303: misfire 3. Hello fellow techs. This car came to me on a hook and in pieces. after fixing the vacuum leaks, burning oil because of the breather, OEM spark plugs, replace blown alternator, oil in water due to oil cooler(replaced), new coolant reservoir after coolant flush,...	May 16, 2016
	2006 Volkswagen Passat 2.0T 2.0L Surge VIN: WVWAK73C26 I have this vw that came from another shop after having the intake pump changed-After checking it out I found the cam lobe and high pressure pump bad so replaced both. also replaced timing chain and tensioner. Car runs great down the road and off idle but at i...	May 16, 2016
	2000 Honda Accord EX 3.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1HGCG1657Y P0303: Cylinder 3 Misfire Detected. ... first set p1399 and then on second startup sets cylinders 1,3 and 5 misfire codes at the same time. It seems to happen worse when engine is hot. I have tried the below repairs. Does anyone have any thoughts as to what may be ...	May 19, 2016
	1997 Porsche Boxster 2.5L Poor Idle Quality, Hesitation, Surge, Cuts out, Stall, Misfire, MIL Lamp on VIN: WP0CA2987V P0303: misfire 3. Hello fellow techs. This car came to me on a hook and in pieces. after fixing the vacuum leaks, burning oil because of the breather, OEM spark plugs, replace blown alternator, oil in water due to oil cooler(replaced), new coolant reservoir after coolant flush,...	May 23, 2016