Hello, ive done some searching, and came across a couple post's with ecu pins, however I can't seem to find the one I need. I am looking for the ac pin on which I can intercept that line with a switch, so I can raise my idle a bit for my trailer winch. I ran a wire from the battery to the back with a plug so I can tow car's on my trailer without needing another battery on the trailer, etc.

Without me having to hold my foot on the gas, I was thinking if I can ground this signal, tricking the ecu to thinking the ac is on, itll raise my rpm's enough for the winch.

Thanks.

 

There is an ac idle up vacuum solenoid, tap into that directly

 

Where is that exactly? Happen to know the wire to ground? Thanks in advance.

 

Its under the hood in the engine bay. Thats all I can tell you. Try to google it.

 

Well I found it, but how am I suppose to actually use that to increase engine rpm with a switch? It is vacuum controlled. I need something electronic. . .

 

its an electronic vacuum switch

 

what year motor?

 

If you need to raise your rpm to winch a car on a trailer you have to small of a battery.

it also would be a big help to say just what your working on:jessica:

 

edit to add: I just noticed you screen name and avitar. It looks like you have a 1995 truck. The parts fiche link and comments I posted are for up to an 1988 truck.


The A/C idle-up is vacuum controlled already via that electronic switch. The switch switches the vacuum on or off to the idle-up diaphragm according to the needs of the air conditioner.

http://www.utoyot8.com/images/147907305/154891666.png

Tap into that switch to trigger it. You'll have to determine if it is positive or negative switching.

 

^ Perfect, thank you!