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PT Cruiser P0300 code

Tiny
ROBBIE109
  • MEMBER
  • 2004 CHRYSLER PT CRUISER
  • 4 CYL
  • FWD
  • MANUAL
  • 100,239 MILES
I have a 2004 PT Cruiser GT Turbo 5-speed with 100,000 miles. I recenty got a po300 code 3 days after buying the car. It ran great for the 3 days. Now when the turbo engages the CEL blinks and I get the po300 code when I read the code. The previous owner replaced the wires, plugs and coil pack about 2,000 miles back. Stated the car never did this to him ( who knows the truth). The Dodge dealer told me by phone it is not the crank sensor. Because it would not start if it was. Any ideas?
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Tuesday, June 14th, 2011 AT 2:08 PM

4 Replies

Tiny
ROBBIE109
  • MEMBER
  • 5 POSTS
Thanks, the downside is the long list of possibles, lol. I replaced the cam sensor today to no avail. The car has a miss at idle that fluctuates a little. As long as you feather the gas it gives no problems. It's when you throttle up that it starts and kinda goes into a limp mode. The funny thing is the CEL is off and I now have no codes, just the same problem. I ran a compression test and I have 130 on 1 cylinder and 90 on the other 3. Any direction to be pointed in would be better than where I am now.
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Thursday, June 16th, 2011 AT 2:00 AM
Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Those readings don't look good-might try testing the throttle position and manifold absolute pressure sensors-
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Thursday, June 16th, 2011 AT 12:38 PM
Tiny
ROBBIE109
  • MEMBER
  • 5 POSTS
Ok thanks, but how do you test either of those? I may be in over my head!
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Thursday, June 16th, 2011 AT 1:33 PM
Tiny
ROBBIE109
  • MEMBER
  • 5 POSTS
Ok, a big thanks to you!
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Thursday, June 16th, 2011 AT 2:13 PM

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