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

rpms drop

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Old 03-13-2011, 04:51 PM
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Default rpms drop

so this problem usually happens on my way back from tucson, but the problem is when im cruising at 70 mph rpm's are usually at 2400-2500 and i noticed that when i punch it to pass someone ill slow back to 70 mph then i noticed the the rpm's are rising and it ill hit 3000 rpm when im still cruising at 70 then it will drop back to 2500 nd then back up, just back and forth, my check engine light will start blinking and then after a min it will act fine but it usually does this on my way back from tucson.

what could cause this?

mods: lt pacesetter, no cats, moroso cai,3,42 gears, ORY, Magnaflow exhaust, small stall 2800 possibly,msd 6al ignition box, and full suspension.

Last edited by 96azz28; 03-13-2011 at 04:52 PM. Reason: forgot to add something
Old 03-13-2011, 10:15 PM
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Anything?
Old 03-13-2011, 10:19 PM
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Sounds to me like your converter is locking and unlocking. Mine did that in my 97 with a Yank SS3600 with no tune. I bet your getting some sort of a TCC code.
Old 03-14-2011, 12:01 AM
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Okay, so im guessing im in need a of a tune then



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