2001 Pontiac Grand Am SE Logo
mike jackson Posted on Aug 27, 2013
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P0452 ,P0305 aurora 3.5 - 2001 Pontiac Grand Am SE

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John

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  • Posted on Aug 27, 2013
John
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Joined: Aug 21, 2013
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P0452 means fuel tank pressure sensor circuit low pressure. Possible symptoms:
- Fuel Tank Pressure Sensor harness is open or shorted
- Fuel Tank Pressure Sensor circuit poor electrical connection
- Faulty Fuel Tank Pressure Sensor
The code 0305 means cylinder 5 misfire detected. Possible symptoms:
- Faulty spark plug 5
- Clogged or faulty fuel injector 5
- Faulty ignition coil 5
- Fuel injector 5 harness is open or shorted
- Fuel injector 5 circuit poor electrical connection
- Ignition coil 5 harness is open or shorted
- Ignition coil 5 circuit poor electrical connection
- Insufficient cylinder 5 compression
- Incorrect fuel pressure
- Intake air leak

Read more: http://engine-codes.com/p0305_pontiac.html#ixzz2d8l8VHWe
Read more: http://engine-codes.com/p0452_pontiac.html#ixzz2d8kXRa8w

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I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514

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I would check out the EGR valve. That maybe what is causing all the misfires.
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