Can i change the firing order in the pcm rather then re pinning stuff.What i have is a 500 inch bbc with a 4 7 swapped camshaft and id really like to just change the firing order in the tune..Thanks
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Can i change the firing order in the pcm rather then re pinning stuff.What i have is a 500 inch bbc with a 4 7 swapped camshaft and id really like to just change the firing order in the tune..Thanks
No... re-pining/re-routing only.
Tunercats will do it.kinda a bummer efi live doesnt allow it...I repinned it and got it fired up tonite...thanks for the reply joeQuote:
Originally Posted by joecar
I don't think it works like that, the PCM only knows A-H outputs, the wiring team at GM route the wires to the correct injectors/ign coils.
Cough,,LOL never say never
Interesting ... with HPT the Gen III firing order is part of the engine diagnostics parameters. I have never changed this, but my assumption was that altering this table was for the purpose of updating the misfire detection algorithm, after repinning the PCM to mechanically change the firing order, as you have done.Quote:
Originally Posted by AllOutPerformance
I still learn something everyday ...
Watch "Bbc with gm ls1 ecu first fire up" on YouTube
Bbc with gm ls1 ecu first fire up: http://youtu.be/qTuVPed3HR0
Sounds and runs great, throttle response is instant :cheers:
I am of the same opinion.Quote:
Originally Posted by Taz