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P0300 code 05 GT Turbo

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Old 23 Nov 2015, 03:40 pm
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Default P0300 code 05 GT Turbo

I bought my 05 PT Cruiser Gt Turbo a couple months ago and after a few days of driving it started missing, mostly at acceleration and at times it would get really bad and then it would go away for awhile. The check engine light would come on when it was happening and then go off when it corrected itself. Well now it has gotten really bad to where I can't even drive it. It misses constantly and has a bucking to it and when at a red light it will just die, I have also heard it backfire once or twice. The only code it reads is p0300. I have already changed plugs wires and coil pack, I am just stumped and don't have the money for an expensive mechanic
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Old 23 Nov 2015, 05:16 pm
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Default Re: P0300 code 05 GT Turbo

P0300 - Multiple Cylinder Misfire Conditions:

Possible Causes:

1. Fuel system problems
2. Erratic Camshaft or Crankshaft Sensor signals
3. Ignition system problems
4. Engine mechanical problems
5. PCM has failed

I would suggest checking for ignition system problems. Have you checked the wires going to the camshaft and crankshaft sensors?
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Old 24 Nov 2015, 12:32 pm
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Default Re: P0300 code 05 GT Turbo

My wife's 05 GT had the same problem. Like you we had change the plugs and the wires. what finally took care of the problem was a total intake cleaning including the injectors it now feels like it has about 20 hp more than when we bought it. It will now smoke the tires pretty good but of course she doesn't let me do that with her car. Lol. But if she's not around what the heck
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