V8Astro Captain
09-17-2002, 08:09 PM
Just curious. My friends turbo project would move alot faster if I had any idea how to hack his ECM. I don't have the time to invest in it.
As we were discussing, the current plan is to use a 7749 GM ECM from a turbo Sunbird/Typhoon/Syclone.
The only hang-up is the distributer. I can't find a decent way to mount the pick-up coil from the Sunbird in the Honda distributor.
Even so, I'll have to play alot of tricks to get this ECM to run 4 saturated injectors because as you know this ECM is batch fire and fires left bacnk, right bank. So what the hell do I do if I only have 1 bank!?
I just read on diy-efi.org that GM also used the 7730 to run 2 P+H injectors. BUT, there were some open circuits across a couple terminals I think (I'd have to read it again). Looks like GM did some wacky stuff like jumpering terminals across the ECM pins to get it to do different things. Just so happens that the 7749 is in the same P4 ECM family as the 7730, so this project might end up a wet-flow manifold...
waddaya think?
As we were discussing, the current plan is to use a 7749 GM ECM from a turbo Sunbird/Typhoon/Syclone.
The only hang-up is the distributer. I can't find a decent way to mount the pick-up coil from the Sunbird in the Honda distributor.
Even so, I'll have to play alot of tricks to get this ECM to run 4 saturated injectors because as you know this ECM is batch fire and fires left bacnk, right bank. So what the hell do I do if I only have 1 bank!?
I just read on diy-efi.org that GM also used the 7730 to run 2 P+H injectors. BUT, there were some open circuits across a couple terminals I think (I'd have to read it again). Looks like GM did some wacky stuff like jumpering terminals across the ECM pins to get it to do different things. Just so happens that the 7749 is in the same P4 ECM family as the 7730, so this project might end up a wet-flow manifold...
waddaya think?