hey guys just bought a 96 z28. my problem is between 4000 and 5000 rpms my engine is cutting out like hitting the rev limiter or something, not wanting to upshift.(auto) but it shifts fine if not at wide open throttle. im also getting a mass air flow circuit code. changed the mass air flow sensor. somebody please help.

 

There is a sticky at the top of the 4th Gen section that you can look at that describes your transmission issue exactly. Check it out and give it a shot.

 

where exactly is the adjustment bolt.

 

also any suggestion on the ses light code about the mass air.

 

It sits on the left (driver) side of the transmission.

 

thanks 95