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So about 10 years ago a PS1000 was installed in my 87 Tii. Wiring was done correctly however, the car just never was finished or running well enough to feel confident to drive it much. So about 2 years ago I upgraded to elite 1000 and just moved the few pins needed to use the PS1000 harness with the Elite 1000. A friend of mine street tuned the car and it felt 1000 times better but still had a few hiccups. Fast forward to a week ago, I decided to buy a new harness for the elite since the other was old and sat outside quite a bit so I wanted to eliminate any potential wiring issues.
I am currently about 90% done with the engine bay wiring but cannot figure out where to connect the Tacho wire. Its DPO1 (V/B color) Pin 18. Ive read that it can connect to the Y/L wire on FEM-01 which if I read the diagram correctly should be one of the orangish colored connectors in the passenger side kick panel. However, I do not see a Y/L colored wire there. Anyone have a pic of the connector/Wire? Is there somewhere else to look for that wire? I am not using stock coils ( I believe they are LS coils).
Second question is on A/C wiring:
Where does the A/C clutch wire Pin A31 (G wire) STEP1 P1 as well as the A/C request wire Pin 7 (GY/R wire) SPI4 connect to?
Im sure Ill have more questions as I finish this rewire. Thanks for the help
There’s a single female bullet connector where the trailing coil is that’s the same Y/L wire. You can connect DPO1 to that.
Thank You.
Another question i have is pertaining to the A/C.
On the old ecu harness from the PS1000 Pin A30 was DPO7/Aux out2 however on the elite harness, Pin A30 is blank. It was originally connected to the A/C main relay (L/W wire on factory ECU plug) and Pin B7 was DSI1/Aux input1 on the PS1000 harness on the elite harness its SPI4 and was connected to the A/C Switch (L/O wire on factory ECU plug) and listed as A/C Request on my ESP I/O Report.
Which wire connects to the A/C switch wire? Looks like that would connect to the SPI4 (GY/R wire) on new harness?
Which wire connects to the AC relay wire? Not sure which to use on this one cause of A30 being a blank pin on new Harness plug.
I was looking through Haltechs help pages and came across a topic on A/C wiring. The picture below is what my I/O's are currently assigned to from the old harness. If im reading this correctly vs the Haltech help page, B7 should go to the A/C switch wire which is L/O on the factory ECU connector and the wire for A31 would connect to the A/C relay wire which is L/W on the factory ECU plug. Is that correct?
Where does the ground that is bolted to the top of the keg go to? It was spliced into the solid black wires on the old harness and the B/W wire went to battery neg post, but those wires in the new setup call for them all to go to battery neg post.
Thank you again
So I finished the harness today and put everything back together but car won’t start. It turns over however it doesn’t even try to start.
Fairly certain that it’s not getting spark. Checked power at the coil harness and everything showed 12v that should.
However in the old harness the ground that was bolted to the top of the keg under the intake was attached to pin 10 and 11 which is a black wire and labeled “chassis ground”. On the new diagram it shows it (pin 10/11) going straight to battery. Do I need to run that ground from the keg and tie it into that ground that runs to the battery? Could that be my problem?
04-26-24, 10:50 PM
