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My car surges up and down.

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Old 08-17-2007, 01:31 PM
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Default My car surges up and down.

I have a 1999 z28 that the motor has been reworked with cam,pistons,heads,Ls6 manifold,and it has headers with no cats. My problem is the car keeps surging up and down. It seems like it wants to die out and sometimes it does. Also the car smokes when I first start it up. After it warms up the smoke goes away. The motor has around 1000 miles on it. Thanks
Old 08-17-2007, 01:35 PM
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Search PCM Diagnostics & Tuning.
Old 08-17-2007, 03:34 PM
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Your car needs a pcm tune, and probably valve seals.
Old 08-17-2007, 03:35 PM
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Like they said...if it's not tuned then you need one asap.
Old 08-17-2007, 04:51 PM
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thanks guys for the quick response. Where is the best place to have a pcm tune?
Old 08-17-2007, 04:54 PM
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Originally Posted by Heat Treat Pete
thanks guys for the quick response. Where is the best place to have a pcm tune?
Were are you from?




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