1989 ZR-1 Pilot #004 Thread

[Tyler Townsley]

Originally Posted by 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.

Ask him if they tried to start the car, if they did and it would not start ask what they replaced. In trying to start my car I used a 90 DIS module and it wiped out the dash cluster as you discribe yours. This is because the 89 and 90 DIS modules are different on the tach line and dis in lines. It will cause problems in the cluster.

Tyler

[1989ZR1#74]

Originally Posted by Tyler Townsley

Ask him if they tried to start the car, if they did and it would not start ask what they replaced. In trying to start my car I used a 90 DIS module and it wiped out the dash cluster as you discribe yours. This is because the 89 and 90 DIS modules are different on the tach line and dis in lines. It will cause problems in the cluster.

Tyler

Hmmm, would an 89 DIS whipe out an L98 Dash? I hope it's not a DIS. normal ZR-1 DIS are costly, 89s who knows.

Eric

[phrogs]

Originally Posted by 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...

On the 90s the code is stored in the BCM body control module, but im not sure what the 89 would have used for these functions since it is the older dash.

But Like Tyler said I would program the ECM to by pass vats

[-=Jeff=-]

Originally Posted by 1989ZR1#74

Hmmm, would an 89 DIS whipe out an L98 Dash? I hope it's not a DIS. normal ZR-1 DIS are costly, 89s who knows.

Eric

probably as the more I thnk about it the 6K and 8K dashes are probably pinned the same

Tyler, I assume a pin swap on the harness will allow a 90 DIS to work?

[1989ZR1#74]

well, I think the PASS Key Decoder Module is bad. I will try to replace it. Ironically enough all 3 of my 89s have VATS key #4. I can try the L98s Pass module.

[Tyler Townsley]

Originally Posted by -=Jeff=-

probably as the more I thnk about it the 6K and 8K dashes are probably pinned the same

Tyler, I assume a pin swap on the harness will allow a 90 DIS to work?

A 90 dis can run an 88-89 after the pin swap, that how mine is done. There is another gotcha on the 89s and not the 90s and thats the oil kill switch. If you look at the 89 wiring diagram there is a line that prevents fuel pressure until it sees oil pressure. I looked for that damn thing under ther dash for years until it dawned on me that it was looking for input from the oil pressure sender on the motor, as I remember it controls the fuel pumps. On the 90s+ the ecm controls this function. Its there to preent the pumps running in a accident.

These may help.
http://deliquescence.net/~tyler/prototype1/89_p_506.jpg
http://deliquescence.net/~tyler/prototype1/89_p_507.jpg
http://deliquescence.net/~tyler/prototype1/89_p_508.jpg
http://deliquescence.net/~tyler/prototype1/89_p_509.jpg
http://deliquescence.net/~tyler/prototype1/89_p_510.jpg
http://deliquescence.net/~tyler/prototype1/89_p_511.jpg
http://deliquescence.net/~tyler/prototype1/89_p_513.jpg
http://deliquescence.net/~tyler/prot...90_ign_mod.jpg

Thanks to George whever he is.

Tyler

[1989ZR1#74]

Good stuff Tyler Good stuff. Can't wait to get back to it tomorrow.

Eric

[Corvettes White]

Originally Posted by Tyler Townsley

A 90 dis can run an 88-89 after the pin swap,...

Thanks to George whever he is.

Tyler

Hi Tyler. I am still around. Been following the threads. And am enjoying following along. With work soooo bad can't go much of anywere. My wife had said, "Go to the auction." The first one where the DR-1 sold (PS it is an '89 and not a '90 as posted elsewhere.) I told her, "If I could not pay to play." I would stay home. What is great is that a few of these cars have not gone to the crusher and that someone is enjoying and shairing what they are doing with them. Best regards and as a man once said, "Its not the car, its the people." George

[1989ZR1#74]

George is right

Here is the DR-1s SPI.

Note the K in the 10th digit, it is also a 51 not a 58. Per Tyler's serial sheet 100024 to 28 were "1989 Pilots, LT5 engine without ZR-1"

Note: WD1 = Pilot, and the FE1 suspension.

[1989ZR1#74]

Well pulled the FX-3 Codes today. I got them all!

SRS Codes
13 Left Rear time out
14 Right Front time out
21 Left Front time out
22 Right Rear time out
23 Loss of vehicle speed signal
31 Left Front out of position
32 Right Front out of position
33 Left Rear out of position
34 Right Rear out of position
41 Selective Ride Control Switch short to Voltage
42 Selective Ride Control Switch open contacts
43Selective Ride Control Switch open circuit