89 IROZ PROBLEMS
89 IROZ PROBLEMS
I have read most everything on here about my car, but no one fits my problem to a tee. (very close though) Here it is, I bought the car after it sat for 4 years. Replaced the fuel pump, filter and put new fuel in. The car has 44 psi at the injectors and fires really well. I can let it sit a day without the battery hook-up and try to crack it, and it will hit and and then on nothing else. I have checked everything I have read in the post. I cannot find this one question, many people say if it is the vats the motor will not turn over. I was wondering about the vats; Will it let the motor turn over and the injectors not fire? The distributor is working properly and all fuses are good. There is power to the injectors. What else causes the injectors to pulse other than the ecm. cannot get the car to run in order to get any codes. I think that covers it, and I have read, read, read, and tried everthing I saw.









Senior Member
iTrader: (1)
Joined: Nov 2006
Posts: 830
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From: Victoria BC Canada
Car: 87 Camaro IROC
Engine: 305 TPI
Transmission: 700r4
Axle/Gears: 3.23
so when the engine wont start, it wont turn over? or it will turn over but not start?
if it wont start then it could be your ignition switch, try replacing it and see if its any better. if it wont turn over at all, check your starter.
if it wont start then it could be your ignition switch, try replacing it and see if its any better. if it wont turn over at all, check your starter.
Supreme Member
Joined: Feb 2004
Posts: 1,581
Likes: 3
From: So Cal
Car: 89 IROC Z28
Engine: 357 TPI
Transmission: 700R4
Axle/Gears: 3.42 Posi
The VATS does 2 things it disables the started and won't fire the injectors. If someone rigged the starter to bypass the VATS the Computer still won't fire the injectors. I'm not sure if this is you're problem though.
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iTrader: (4)
Joined: Aug 2005
Posts: 326
Likes: 1
From: edmonton alberta canada
Car: 91 rs,1 92 rs,92 b4c/1le
Engine: 5.0tbi,5.7 tune port/5.0tpi
Transmission: 5spdx2 and t56
Axle/Gears: 3.08,3.73,3.42
try a igntion module it may be the problem some parts stores will test them for free it may help
New switch, and the ignition module checked out along with the pick-up coil. Also, gramps I was told if it was the ignition it wouldn't turn over in addition to the injectors not working. Plus, I tried the bypassing of the vats, not real sure i've done it right. I had a buddy with me and he has done 4 of them and they all worked. He uses a potentiometer (something like that)
Senior Member
iTrader: (1)
Joined: Nov 2006
Posts: 830
Likes: 0
From: Victoria BC Canada
Car: 87 Camaro IROC
Engine: 305 TPI
Transmission: 700r4
Axle/Gears: 3.23
well then i dunno, mayb a fuse or a relay? other than that, get it toed to a shop. sorry dude but ive run out of options.
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