1989 ZR-1 Pilot #004 Thread

[1989ZR1#74]

Morning update:

No sign of grease pencil under hood that I could find. More electrical testing:

1. Passenger side blinkers work.
2. Drivers side lights up but does not blink
3. Passneger side door hatch release works
4. Drivers side door hatch release doesnt work
5. Center console hatch release works.
6. New installed horn button works.
7. Only high pitch horn works.
8. High beams work
9. Green arrows do not light on dash when either blinker is on
10. High beam indicator on dash does not light up.

[1989ZR1#74]

I emailed Sean Finegan from GM this morning to look into the tach issue. Sean was the GM rep at the Auction and he helped me document #074 last year. He replied back and said he would see what he can find.

[1989ZR1#74]

[1989ZR1#74]

Checked the Ignitian today to see if the VATS resistor is working. It was:



Key is a 4 and the vats check reads:



Since that works now I may try the 4 minute start option just to see if maybe the key is wrong.

[1989ZR1#74]

Pulled the drivers door panel to fix the hatch release and repair the upper trim. Found the original color:




Any idea what this resistor is for?

Pulled this plug off of the break pedal:

[1989ZR1#74]

Update:

Put the Tech 1 on it this afternoon and guess what.....

Code 46!!! Vats problem

Here is my question. Where is the VATs code stored? in the ECM? If so this has a refurbished ECM. So...

[-=Jeff=-]

in a regular RPO there is a VATS Module on the Passenger side that controls it. there is a flag in the ECM on the 89 L98 to ignore the VATS.

My guess is the vats module is the same on your behind the breadbox

[Tyler Townsley]

Originally Posted by -=Jeff=-

in a regular RPO there is a VATS Module on the Passenger side that controls it. there is a flag in the ECM on the 89 L98 to ignore the VATS.

My guess is the vats module is the same on your behind the breadbox

Eric you can change the code in the calibration to ignore the vats. Either I or Todd P can do it. Check around and see if anyone there can download your calibration from the prom and send it to either of us and then can reflash it when you get the new calibration back. Other option is to send us the calibration module.

There is a tool that can bypass/check the vats its called a vats checker, I used one on mine when we could not get it started.

Tyler

[Tyler Townsley]

Originally Posted by 1989ZR1#74

Any idea what this resistor is for?

Pulled this plug off of the break pedal:

Looks like a way to solve the dreaded no start caused by the clutch start switch which is way too small to handle the amperage it carries, its what I mentioned earlier about jumpering around. Under the hush panel on the drivers side jump the purple wires that go to the switch. It will turn over in gear but at least it will turn over.

Tyler

[1989ZR1#74]

Thanks for the info. I did not want to start with the wiring yet, but this afternoon I reattached the courtesy light plug connectors to the white and orange wires. Next thing you know. I'm pulling codes.