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

85 Data Parameters

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Old Feb 4, 2019 | 04:52 PM
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Joe K
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Default 85 Data Parameters

Anyone have a site that lists the data code parameters, key on, engine off and key on, engine running, for the 85? Would the factory service manual be of any help? I've been meaning to get one. This would be a good reason.

KOEO, I have no codes. Question I have is should the 4th and 3rd gear switches be off or on? Mine are on. Reason I ask is when I first got the car 3 qrts low on fluid, nothing looks or smells burnt. Had very high shift points, 55 into OD. TV cable was way out of adjustment and also not allowing WOT. Adjust the cable but now have very low shift points, 35 into OD and have to really open the throttle to get it to down shift. Cannot feel any slippage or any other type of problem, shifts are firm and immediate and I'm getting 16 to 17 mpg. I haven't gathered any KOEO data. Any advice/help would be appreciated.

TIA,

Joe K.
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Old Feb 4, 2019 | 10:38 PM
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Service manual section 6E should have Tech1 data chart. Transmission shifting is controlled by shift / TV cable. Switches are for TCC. 3 quarts low you might pull pan check for debris. Ecm will only set code related to TCC inop.
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