My vintage 1986 Corvette convertible recently developed a stumble that progressed to a no-run condition. It comes and goes sometimes starting but in a few minutes I get a SES (Service Engine Soon) light and it stalls. Read codes 33 (high MAF) and code 36 MAF (burnoff signal malfunction). After it stalls it won't restart.
So, I had a new MAF in the box as a spare and I tried it and still no start. It cranks but won't start. When I removed the MAF out came a fuel fog from the throttle body. I have the factory service manual and I have had a code 33 before but never a no-run condition ... only a stumble when I let off the gas. It was my MAF power relay that went bad last time and I replaced it with a new one only 3 months ago. It's not the MAF power relay because I tried a new one and it did not fix.
PS: Now that I replaced the Ignition Control Module (ICM), that solved the no-run condition. Why would it throw those codes for a bad ICM?