Starts, runs rough, stalls, then no start.
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Starts, runs rough, stalls, then no start.
Okay I am driving myself crazy and maybe I am not looking in the right spot. 85 Z28 305 TPi when it sits it will fire up run rough and then cut off. Will try to start on next crank but then cranks like its not getting spark. But it is getting spark which is crazy, getting fuel, but will not run. Not getting any codes. TPS set at perfect setting. Please help.
Joined: Dec 2005
Posts: 4,795
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From: St. Cloud, MN
Car: 1984 Trans Am
Engine: LS1383 in work
Transmission: Magnum F - to be installed
Axle/Gears: Zexel Torsen 3.73, 28-spline mosers
Re: Starts, runs rough, stalls, then no start.
What's your timing set at? What is your fuel pressure? Have you checked your injectors, swapped fuel filter, and checked your MAF/MAP sensors yet?
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Re: Starts, runs rough, stalls, then no start.
A little complicated but through Alldata I was able to determine it was the ECM is bad. It it sending a bad signal to the MAF. But a new one is 55 or I can pay to have my 91 ECM Vats disabled and when I swap the motors it should run fine.
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Re: Starts, runs rough, stalls, then no start.
Yes it has always stayed on and with a code 33 which is MAF sensor or circuit malfunction. Going through the diagnostic procedures I found the ECM isnt sending the correct voltage to the MAF.
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