1991 ZR1 Restore - Help! - ZR-1 Net Registry Forums

Corvette95 · 11-29-2021

My 2 cents.... Sounds like you should consult a shop with Corvette (C4) experience. I would not keep trying to crank it. I would verify all the work you just performed is not part of the issue. I also agree that the plug wires could be crossed up as well I know you said you replaced them one at a time but verify with the service manual) . I would also check the DIS connections..how did you unplug and reconnect the DIS? Also, I would get a fuel pressure tester and connect to fuel rail and jump the fuel pump connector (under or around brake booster and make sure you have fuel pressure as fuel lines could have come off in the tank or similar issue) . Don't make the mistake of saying I just fixed that and assume it is all working. Any ZR-1 owner needs two things... Factory Service Manual and Tech1 scanner ( a generic OBD1 scanner will make do until you can find a Tech1 -they are getting very pricey now). The more you do to it, the more you have to recheck. VERIFY and repair... don't guess at it. Again, just my two cents.

11-29-2021	#11
Corvette95 Join Date: Jan 2006 Location: Decatur, AL Posts: 1,121	Re: 1991 ZR1 Restore - Help! My 2 cents.... Sounds like you should consult a shop with Corvette (C4) experience. I would not keep trying to crank it. I would verify all the work you just performed is not part of the issue. I also agree that the plug wires could be crossed up as well I know you said you replaced them one at a time but verify with the service manual) . I would also check the DIS connections..how did you unplug and reconnect the DIS? Also, I would get a fuel pressure tester and connect to fuel rail and jump the fuel pump connector (under or around brake booster and make sure you have fuel pressure as fuel lines could have come off in the tank or similar issue) . Don't make the mistake of saying I just fixed that and assume it is all working. Any ZR-1 owner needs two things... Factory Service Manual and Tech1 scanner ( a generic OBD1 scanner will make do until you can find a Tech1 -they are getting very pricey now). The more you do to it, the more you have to recheck. VERIFY and repair... don't guess at it. Again, just my two cents. __________________ Corvette95 Registry and Forum (*************) 1989 C4 Conv Wht/Gry Auto Hardtop Top Flight SOLD 1995 C4 Coupe Purple/Blk 6 Speed 1989 C4 Conv Wht/Red Auto SOLD 1996 C4 Conv Black/Tan Auto SOLD 1994 C4 Coupe Wht/Blk SOLD 1995 C4 ZR-1 White/Gry #278 Dual Dunn Head SOLD 1986 C4 Coupe Black/Red 4+3 SOLD 1990 C4 ZR-1 Red/Red #0454