Yamsman97
New member
- Joined
- Jul 21, 2020
- Location
- Montreal, Qc
Red block gods I need some assistance for I am completely confused.
This summer I swapped 89 240s b230 with a later 940 b30ft. I got the 940 engine harness wired into the 89 body harness and ran very nice with the NA ECU and ignition module. We swapped the NA computers out for 760 computers and the car would just immediately lean out and stall. There was also a smell of burning electronics coming from the ECU. At first I thought it was a bad ECU since it ran fine with the NA. I had swapped back to the NA computers and have been driving it around for the past couple months with little issues. I wasn't driving it hard in that time since I heard that the spark is a bit aggressive and melts stuff. I finally bought another 760 ECU and plugged it in today and now it runs fine for the first 5 seconds then quickly leans out and stalls. I'm able to keep it alive with quick shots of the throttle to keep it from leaning out. I also quickly found out that the same smell was starting to happen with this ECU as well. Since the only two things im switching out are the computers I decided to keep the NA ignition module in with the Turbo ECU just to see if maybe the ignition module is causing the issue. Still leans out after 5 seconds but with little to no burning smell? And now Walbro fuel pump in the tank primes with key on which it didn't do before. Note for the fuel pump I wired it as if it was the main external pump and deleted the wiring for the in take assist pump.
Any help would be appreciated because nothing is adding up here and I am at a complete loss. Thanks in advance!
This summer I swapped 89 240s b230 with a later 940 b30ft. I got the 940 engine harness wired into the 89 body harness and ran very nice with the NA ECU and ignition module. We swapped the NA computers out for 760 computers and the car would just immediately lean out and stall. There was also a smell of burning electronics coming from the ECU. At first I thought it was a bad ECU since it ran fine with the NA. I had swapped back to the NA computers and have been driving it around for the past couple months with little issues. I wasn't driving it hard in that time since I heard that the spark is a bit aggressive and melts stuff. I finally bought another 760 ECU and plugged it in today and now it runs fine for the first 5 seconds then quickly leans out and stalls. I'm able to keep it alive with quick shots of the throttle to keep it from leaning out. I also quickly found out that the same smell was starting to happen with this ECU as well. Since the only two things im switching out are the computers I decided to keep the NA ignition module in with the Turbo ECU just to see if maybe the ignition module is causing the issue. Still leans out after 5 seconds but with little to no burning smell? And now Walbro fuel pump in the tank primes with key on which it didn't do before. Note for the fuel pump I wired it as if it was the main external pump and deleted the wiring for the in take assist pump.
Any help would be appreciated because nothing is adding up here and I am at a complete loss. Thanks in advance!