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Help diagnose a problem

  #1  
Old 01-28-2011, 12:07 PM
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Default Help diagnose a problem

While making a left turn, i hit the gas pretty hard and the car buckled and started shaking.

Thought it was a missfire (bad coil) but the check engine light did not flash and i did not get any messsages. Previously i had a check engine light on for a small evap leak, but drivability was not affected and i drove around like that for about a year.

I stopped and turned the car off, restarted, same thing, while idling the car keeps shaking and rpm wobbles, i can floor the gas pedal and the car stops shaking, but it speeds up very slowly and basically top out at around 50-60 Km/h. Transmission shifts smoothly.

Again no new check engine light.

Possible cause ? ignition coil, Throttle position sensor, other sensors ? car is in the shop right now
 
  #2  
Old 01-28-2011, 02:14 PM
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One possibility is a vacuum or boost leak. I had a similar thing happen when the wastegate acutator pipe (from TCV) for the the second turbo popped off. The car peformed REALLY badly.
 
  #3  
Old 01-28-2011, 08:52 PM
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Got the car back, mechanic says its the ETM, he said he scanned the car and came up with like 5 bad codes, some o2 sensors, the evap leak i had before, a missfire, and something else.

I find it hard to believe i did not get a check engine light for any of those ( besides the check engine light for the small evap leak. He took out all the plugs, car has a bad valve gasket, and its spitting oil on the coils and spark plugs, they were fouled so he replaced them. The plugs were last changed year and a half ago, and yes it always burned oil and the plugs looked very nasty, tips were corroded and discolored.


I drove it back home (barely) and now contemplate my next move, i think im just going to get rid of it, i was offerer $500 canadian at a used parts place. Cut my losses finally and move on, this car is garbage, not build well at all, i loved driving it, but i hated spending money fixing it, time to move on...
 
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