89-91 CPU trouble codes
 

Okay so if you would be so kind I just need someone to validate these codes for me. I found them off of google.
My 89 GTUs is telling me 01 and 10.

According to the list I have, error code 01 is "ignition coil trailing-trailing ignition pulse cut"
And 10 is "Intake Air Thermosensor (AFM)-Intake air fixed at 68F"

Are these right? If they are can you guys point me to where the thermosensor is. I've found some posts is the 3rd gen area but I don't know where this thing is. In or around the mass airflow sesor?

yeah in the airflow sensor, so you'll need a new MAF.

I have a spare but i think its a T2 one.

okay awseome. That's the same post I got. New AFM? Got it. Any upgrades I can do while I'm at it or is an the AFM just gonna be another AFM?

Yeah, the only real upgrade you can do, is to go to a standalone EMS system instead, lol.

Actually it doesn't mean that. It means the ECU is seeing a signal that's outside the normal range. It could be the thermosensor in the AFM, but it could also be a loose, dirty or broken connector, or a broken wire.

An ECU error code doesn't mean "replace this part", in means you should follow that code's troubleshooting procedure in the FSM to find out what's wrong, than fix it.

nzconvert beat me to it, test the afm using the service manual located in FAQ, also there is a intake air temp on the intake. im retty sure that fault is for the air temp in the AFM though good luck