Managed to get the winaldl software up and running perfectly trough usb FT232 adapter.
It provides a steady stream of data on all things when car (89 g20) is in ignition on, engine off.
However...

Hi, I have the same issue when datalogging. Green light when engine is off and red light and noisy data when engine on. Im gonna try changing the jumper from 5 to 3.3 on my usb connector. But did you...

Yes, but how do i get the iac to "learn" to be in correct position at idle? since for the ECM to adjust tables it needs to have O2 sensor up to temp. Right now my engine surges at idle.
I know i can...

:)
Couldnt find photo, but yes red/blue and red/green wire on car also :)

Hi

My 89 g20 was running very rich and i have got it to run better. It is a 305 that had 350 injectors and 350 fuel pressure regulator. All replaced now :)

However it still doesnt idle good at...

Hi

Yes, my 89 has red/blue and red/green wiring on the wiring harness just as on the drawing.
I got quite a lenghty reply from a guy at the garage today about polarity in solenoids. If the...

Hi

Searched forums and internet for answers regarding this, but im still unsure.

Does the TBI injectors care about polarity?
The TBI housing have different grooves so that the injectors can...

Thank you :thumbsup:

Hi

Im a recently proud owner of a 1989 G20 which according to rpo codes should have a 350 in it, but it turned out to be a 305 from 1986.:innocent2: The problem is that the injectors are 350 but i...

Hi
new to this site, i registered because it seems as the best place to learn about tbi systems.
Have a g20 im working on

Will post more specific questions in respective sub groups

Br
/Alex