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Subject rough idle at start up -
     
Posted by BannonZ on April 06, 2017 at 10:17 AM
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Message Hey guys, I am quite frustrated with the Z at start up. She starts fine, but seems to chug and run quite rough. The oil pressure shoots up to about 3/4 on the dial until settling down after two or three minutes of idling. If I attempt to drive the vehicle until the idle settles it chugs when attempting to accelerate.

I have had this issue for quite some time, and typically just let the car run for a minute or two before driving. Recently I have replaced the following with brand new parts: IAC, air regulator, fuel filter, regulator and dampner, fuel pump, new ptu subharness (ptu a year or so old), connectors for the IAC, air regulator, knock sensor and harness side PTU connections.

Let me know if anyone has experienced this before.

     
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