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

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Old Apr 10, 2017 | 06:10 PM
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Default cold starting

when cold need to crank 3 times for to start! when started the rpm's hunt up & down while in open loop but when it goes into close loop runs fine
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Old Apr 10, 2017 | 06:50 PM
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Year? Have you checked the vacuum lines?
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Old Apr 10, 2017 | 09:08 PM
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Originally Posted by wildcj
when cold need to crank 3 times for to start! when started the rpm's hunt up & down while in open loop but when it goes into close loop runs fine
To paraphrase Bill Clinton, it depends on what the meaning of the word 'it' is. What is 'it'? What year? Some years have a cold start injector, some don't. Some years also have opti.

What does "runs fine" mean? Means it runs within spec or means it SEEMS ok because the ECM is compensating?
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