(04-25-2011 03:42 PM)james67 Wrote: some months ago i bought an EFIE and payed mechanic to learn and install for me.. but it didnt seem to do anything and from what info i got from fuel saver..it may not be installed correct.
The mechanic cut wires near the ECU on my 1998 chevy venture van
(1 downstream and 1 up stream sensor) but only the red LED light goes on on the uni,t not the green, which supposed to flash.
I noticed that he used the wires from the ECU, even red and black .. (power & ground)
I tried looking for a schematic on the ECU wiring but i cant find one online.
I cant seem to understand fuel-saver diagrams either.
I spend over 200 dollars collectively getting and installing this, i dont want to be just left with nothing to show for it.
If the green LED isn't flashing, it isn't hooked up correctly - or, perhaps there's something wrong with your car. An older car like that with an original oxygen sensor could be the problem. Are you getting any trouble light?
If you have original oxygen sensors, get them replaced. They are supposed to be replaced every 80K miles. If that's never been done, the ones you have are probably just shot.
You can contact email@example.com if you need more assistance getting this project squared away.