tbi issues....1990 5.7
#12
The first generation had HEI then went to ICM module with external coil. The ICM module was probably corroded, I just replaced the one I had. He probably should have just changed that but the who distributor most likely was not the much.
Last edited by BigBobsk5Blazer; 11-14-2013 at 07:07 AM.
#13
@Parasite ......there IS a pickup in the distributor that sends a signal to the ecm that tells it to pulse the injectors...it performs the same function ad the cam shaft sensors that was used in later model vehicles ...
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