Need Quick Reminder on PROM Reinstallation...
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From: Santa Rosa, Cali
Car: 1988 IROC 5.7 Money Pit
Engine: (being built; modified TPI ZZ4
Transmission: 2200 stall/ stage 3 700R4
Axle/Gears: freshened 3.27 in 9.bolt/
Need Quick Reminder on PROM Reinstallation...
4 years ago I installed a new PROM that was made for me by one of the recommended vendors (PROMSforLess?). Am tracing down an issue and want to return the ECU back to the stock PROM to rule out some possible malfunctions.
It may seem stupid, but I can't remember how I did the initial PROM install; if I had to pull the factory unit and put the thing away, or if I only piggy-backed the new unit. Can't find my notes and it was way to many updates and mods ago. Help??? (and
) Nitro-Nicky
It may seem stupid, but I can't remember how I did the initial PROM install; if I had to pull the factory unit and put the thing away, or if I only piggy-backed the new unit. Can't find my notes and it was way to many updates and mods ago. Help??? (and
) Nitro-Nicky 
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