C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

help my 88 out Plz

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Old Mar 18, 2012 | 01:45 PM
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pharestutt's Avatar
pharestutt
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Default help my 88 out Plz

My 88 vert is idling high.It idles normal if started cold but idle goes up as the engine warms up.also its hard to start when warm. any Ideas
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Old Mar 18, 2012 | 01:47 PM
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pharestutt
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it would help if someone had pics of thier vacuum lines i hate diagrams
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Old Mar 18, 2012 | 09:19 PM
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Default Well..........

I just re-did my 88 soup-to-nuts, and that hard starting when it's hot could be the timing to advanced (it should be at 6 degrees) or leaking injectors. Get a shrader valve pressure gauge and check for bleed-down. The high idle may be the tps, it should be at .54 volts, but you should ohm check it to see if it's good at all. I've been driven crazy getting my car dialed-in and changed everything to get it right. My car was neglected and not kept-up-with at all, so take your time and do your research before going broke changing things you don't have to.
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To help my 88 out Plz





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