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LT1-LT4 Modifications 1993-97 Gen II Small Block V8

95 c4 6sp....wtf

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Old Oct 11, 2016 | 06:22 AM
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Default 95 c4 6sp....wtf
All summer my cel came on within 10min almost to the second of driving, I'd reach certain traffic lights and I could literally look down and wait for it to turn on while sitting at the light. I thought it was coolant temp related. Now it's a little cooler out and the light no longer comes on despite coolant temps being higher. I had pulled the codes but I forgot the numbers, I will repull them tonight. Any ideas? I was thinking maybe an iac was sticking causing the computer not to like the number it sees in hot weather. Both cooling fans turn on high when it comes on which is kind of a good thing on hot summer days lol.

​​​​​​​I dunno, thoughts?
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Old Oct 11, 2016 | 06:34 AM
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Post the code(s). No sense in guessing.
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Old Oct 11, 2016 | 07:15 AM
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The codes I pulled last time were codes H31 H33 H35 and H37. I will check again tonight though and see if any are new
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Old Oct 11, 2016 | 04:37 PM
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Everything I've read about that series of codes with vettes seems to indicate low voltage.
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Old Oct 11, 2016 | 06:43 PM
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Yea me too. Maybe it just needs a battery.
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Old Oct 12, 2016 | 08:36 AM
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I did some research on those yesterday for you, and yes, low voltage.
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Old Oct 12, 2016 | 03:34 PM
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Sitting at a light means alternator spinning slower, combined with heat = higher strain on a failing charging system.
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