Turbo Sunbird vs Syclone ECM wiring

A

Aktyguy

New member
I'd like someone to verify the wiring changes from the Sy/Ty injector wiring to the Sunbird injector wiring. From what I remember the Sy/Ty ecu is wired to run 6 injectors off one driver in saturation mode and the Sunbird is wired to run off both drivers in Peak and Hold mode.

Move C11 or C12 to C10 (output of the other driver)
Jump C13 and C15 together
Jump D5 and D6 (or D7, don't remember) together

Can someone please verify this? Thanks.
 
sy#2921

sy#2921

BAMF
Re: Turbo Sunbird vs Syclone ECM wiring

with the rash of threads being brought back I think this might be a good one to verify
 
MRKING

MRKING

New Parts for Old Trucks
Re: Turbo Sunbird vs Syclone ECM wiring

I took some pics of my p+h modded ecm qbnkiller did before I put it in . Heres some close ups .
I put red circles where things have been altered . What it all means is a mystery to me . Can anyone elaborate on the what and the why of this mod ?
ecm1.jpg

ecm3.jpg

I will let you know how it works in a few days when I get another chance to work on her .
 
Last edited:
fivetodrive

fivetodrive

CRISPY
Re: Turbo Sunbird vs Syclone ECM wiring

Bringing this up again since the question was never answered. I tried looking at some more posts but could not find the answer on this site. I pm'ed another member and he gave me some more information.

According to him "the correct way to do it is to use them in true peak and hold mode using the injector wiring example from the sunbird, otherwise all the injectors are fired in saturated mode using only one driver. this is hard on the driver and usually leads to small sometimes unnoticable on off throttle performance. unfortunately the average guy isnt capable of doing this mod to their ECU much less changing the wiring configuration in the harness, so what we normally see in the syty community is the saturated mode 75lb recipe using our chip"

So to me it sounds like most people just run it as is and upgrade the ECM fuse.
 
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