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93 z71 350 tbi I have replaced iac valve, truck is not wanting to stay running in gear R or D with air on, if you turn steering full l or R stalls at idle.
with air off this does not happen but truck is idling about 1000 can not get it to adjust. i jumped pins a and b and got three codes 35, 42, and 73 the iac is new
only issue with trans is it hits hard from N to D and from 1st to 2nd rest of gears do fine. to me just seems like a lot of issues at once
also engine is not hard to start and idle and running down road is smooth sounds good until turning steering wheel
with air on and shifting between 1 and 2
suggestions , other then waiting all my life to get a chevy
 
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