hello all! i own a 1991 chevy kodiak c70hd with the 6.0l engine.
i am currently experiencing issues with the ecm and PROM.
my check engine light is flashing constantly (code 51?), and i have no start.
the original ecm was toast (ants got in it) and i ordered a refurbished one (after the issue above started), and it still had the same issue.
i then burned a new chip with a factory .bin file and still have the same issue.
any input would be greatly appreciated thanks!!
ensure your grounds are okay by running a jumper from ECM case to vehicle chassis.
if that's no good maybe your burned bin is bad with an incorrect checksum, improperly offset, improperly inserted, something like that
so i ran a jumper from the ECM case to the chassis and no dice.... still no start and still flashing the check engine light..Originally Posted by steveo
the bin file i have i found on this thread here- http://www.gearhead-efi.com/Fuel-Inj...-in-Engine-ADX
I posted the files in the linked thread, which I personally verified before posting them.
I'm curious what the Noid light testing for the injector wiring revealed?
i am getting no pulse to the injectors, but i do have spark. reckon it might be an offset issue? this is about to drive me crazy..LOL!
oh and just cause an ECM is refurbished doesn't mean it isn't junk....
i will definitely look into all of that whenever i get back to the shop!
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