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Old Nov 26, 2023 | 08:07 AM
  #49 (permalink)  
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zip439
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Joined: Jul 2010
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From: SE Alabama
Default Re: Help diagnose intermittent rough running

Originally Posted by svtmerc
I had sprayed all over with ether and not come across anything I could notice. I watched the live data of the MAP sensor and haven't seen any oddities. Albeit I have been unable to observe data as it was acting up though.
After installing the intake yesterday it stalled in my driveway at idle in park twice even.
if that occurred with a cold engine then you might suspect the auxiliary air system is not functioning properly. Open Loop. Keep a eye on the MAP and MAF relationship while running.
Are you certain the evaporative purge solenoid and it's vacuum lines are ok?
If all else fails, it gets you back to the O2 sensors. The codes given by the shop are there for a reason.
 

Last edited by zip439; Nov 26, 2023 at 09:00 AM.
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