In my ongoing quest to cure the stumble in my 89 gl-10, I have check the trouble codes and repaired the car accordingly. Since nothing I did fixed the problem or cleared the codes, I am thinking the ECM may have issues and I pick up a used one.

It's off of an 87 turbo. it has a big green K the label.

The numbers

22611 AA140

A11-000 R02 7107

 

On my 89 ecm which has a big green 53 on the label

22611 AA630

A11-000R34 8X25

 

I know some of these numbers are part numbers, but what are the rest?

 

Thanks

THROTTLEPOSITION SENSOR

 

let e guess, the car starts to go, then chokes out until BA ! it all kicks in. the TPS has an idle switch,and a wide open throttleswitch,and a variablebetween.check this out if you havent already

I removed it and cleaned it, the car ran good for a while just like when I replaced the disty, O2 sensor, coolant temp sensor, fuel pump, chopped airbox, etc. But it goes right back. It will stumble in or out of boost. It comes on strong when the turbo spools up but it still stumbles under load. driveable still, but annoying!

 

Anybody know the correct readings(voltages) I need to see at the TPS?

 

I'll just install the ECM tonight and see what she does.

well, the ECM from the 87 wouldn't even start the car.

 

But after I reinstalled the original ECM, warmed up the car, and went on a spirited drive, the codes were gone !? It still stumbles, but now there are no codes.

 

 

I'll check it again later.

I have a 1989 RX turbo with the same number ECM that is doing the same thing. Have you come up with anything else to try?

 

Thanks

I have a 1989 RX turbo with the same number ECM that is doing the same thing. Have you come up with anything else to try?

 

Thanks

 

I believe he fixed his problem.

 

Make sure you check post dates before replying.

This one is 4yrs old.