CEL wiring assistance please

aixgelo78 Fri Nov 18, 2011 11:04 pm

So, Im getting close and Im working on the wiring. Could someone assist me on letting me know how to wire the CEL from the signal of the LS1 ecu.

I have an 88 turbo, and purchased my wiring from SSP. I have a wire labeled as "MIL" aka CEL, and was hoping fro some guidance on where to terminate this or how to terminate this if there is something different that I need to do.

TIA
Chris

Arthropraxis Sat Nov 19, 2011 7:03 am

A couple people attached it to a check engine light on the dash. If it isn't required for your state to have a check engine light you could take it off.

87-944S Sat Nov 19, 2011 7:42 am

I'm using the CEL, it's nice to know if the GM computer is complaining about anything. Very easy to connect to to that light.

aixgelo78 Sat Nov 19, 2011 8:56 am

87-944S wrote:I'm using the CEL, it's nice to know if the GM computer is complaining about anything. Very easy to connect to to that light.

Thanks for the reply. Is there a connector on the passenger side that I can trigger or do I have to go directly to the gauge?

Tia
Chris

Arthropraxis Sat Nov 19, 2011 9:06 am

You could wire it to an LED mounted in one of the blank switch plates in front of the shifter.

aixgelo78 Sat Nov 19, 2011 10:44 am

Arthropraxis wrote:You could wire it to an LED mounted in one of the blank switch plates in front of the shifter.

Thanks, I could do that, but was hoping that I could use the porsche CEL itself. Its been a long time since I saw the cluster lit up. Is there a "CEL" or it uses the "!"?

Also, on the harness that I have, it has a "speedometer" wire labeled, is this used or is this strictly for LS1 gauge clusters?

Thanks for your answers
Chris

Arthropraxis Sat Nov 19, 2011 10:50 am

The speedometer wire must only be for the LS1 gauges. The only wire that comes off of the computer to the gauges is the tachometer. The MIL light wire can go to a blank spot on the gauge panel as 87-944S did. There is a picture of it somewhere. You could hook it up to the ! light but it would mess up the other warning lights as it is connected to all of them.

87-944S Sat Nov 19, 2011 12:29 pm

The 85.5 on dashes have a CEL in the lower right that Porsche didn't use. I don't remember which wire it was, I just traced the circuit to the connector the gauge cluster hooks up to, and soldered the MIL light wire from the GM computer. As Arthropraxis says, don't try and tie into the ! light, unless you have disconnected the ! from the rest of the Porsche circuits.

Mon	Tue	Wed	Thu	Fri	Sat	Sun
1	2	3	4	5	6	7
8	9	10	11	12	13	14
15	16	17	18	19	20	21
22	23	24	25	26	27	28
29	30

CEL wiring assistance please

CEL wiring assistance please

Re: CEL wiring assistance please

Re: CEL wiring assistance please

Re: CEL wiring assistance please

Re: CEL wiring assistance please

Re: CEL wiring assistance please

Re: CEL wiring assistance please

Re: CEL wiring assistance please