Liger Zero
10+ Year Contributor
- 105
- 1
- Oct 24, 2008
-
Ephrata,
Pennsylvania
Well, I was just informed that the ECU in my 92 GSX that I just bought is out of a 90 DSM. Fortunately I was shown that its for a Manual AWD. So, Im wondering is there any difference besides the pins 6 and 4 needing switched?
I had an idling problem where my idle surged terribly and it stalled like crazy. So I switched the pins and now it idles pretty solid, but the bad part is that it idles at 1500rpm. And after I drove it to Wal-Mart went in and came olut 30 mins. later and when I started it it struggled to idle at 500rpm. That seems to be my major problem, I adjust everything while the motor is fully warmed up and idles perfect, then it works fine when I shut it off and restart it right away, but when I let it sit for a little while that happens.
I did properly set the BISS and when those connectors are grounded it idles perfectly at 800rpm, but when they are removed and the computer regains control of the idle it jumps back up to the 1500rpm. I have yet to try and adjust my TPS but I dont know if that will solve my problem or not. Only other thing I can think of is maybe the replacement ISC I got might not be working properly. Or could a bad ISC mess up a 90 ECU as well? Just curious since those wires needed switched.
Is there anything else that a 90 ECU may alter in my car that a 91-94 ECU would do differently? Thanks guys!!!
I had an idling problem where my idle surged terribly and it stalled like crazy. So I switched the pins and now it idles pretty solid, but the bad part is that it idles at 1500rpm. And after I drove it to Wal-Mart went in and came olut 30 mins. later and when I started it it struggled to idle at 500rpm. That seems to be my major problem, I adjust everything while the motor is fully warmed up and idles perfect, then it works fine when I shut it off and restart it right away, but when I let it sit for a little while that happens.
I did properly set the BISS and when those connectors are grounded it idles perfectly at 800rpm, but when they are removed and the computer regains control of the idle it jumps back up to the 1500rpm. I have yet to try and adjust my TPS but I dont know if that will solve my problem or not. Only other thing I can think of is maybe the replacement ISC I got might not be working properly. Or could a bad ISC mess up a 90 ECU as well? Just curious since those wires needed switched.
Is there anything else that a 90 ECU may alter in my car that a 91-94 ECU would do differently? Thanks guys!!!
