'89 Corvette injector firing

Jason Haines jhaines at lingenfelter.com
Sat Sep 11 18:01:34 GMT 1999


Does anyone know if the 1989 Corvette ECM changes from sequential to batch
fire at a specific rpm or injector pulse width? I know two injector size
calculations exist in the code (different conversion function but the same
flow rate) along with a gallons an hour specification (presumably for the
fuel economy computer)? I know GM did this on some early ECMs and I wasn't
sure if the 1989 computer did this (the 1989 was the last year for mass air
flow on the V8 ECM prior to going back to MAF when they went to the FLASH
EEPROM PCMs).

Thanks 


Jason




More information about the Gmecm mailing list