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View Full Version : EWP wiring via AIR relay ?


FlyingDutchman
05-22-2015, 03:39 PM
I know there's a thread on ls1tech, but I didn't get the expected results as per post #6 here ...

http://ls1tech.com/forums/lt1-lt4-modifications/1649286-ewp-wiring-air-pump-relay.html

Also, my wires are orange and not brown ? Anyone know what to cut and splice? I numbered the relay terminals on the picture:

http://i892.photobucket.com/albums/ac128/joshmtanis/2015-03/983E0498-411A-4F20-A6DF-45812451C70E_zpszlvt2cew.jpg (http://s892.photobucket.com/user/joshmtanis/media/2015-03/983E0498-411A-4F20-A6DF-45812451C70E_zpszlvt2cew.jpg.html)

LTb1ow
05-22-2015, 06:26 PM
:kneeslap: @ tech thread.

I'll just wait for Adam to explain.

sweetbmxrider
05-22-2015, 06:29 PM
They changed the colors. 30 is battery feed. 87 goes to your accessory, the pump. Gm spliced 86 into 30 so you are going to have to snip that and run it to a wire that has power with key on/running engine. I believe I went to the abs fuse since I removed it. You could splice into it if you are keeping it, we are just sending a signal to the relay to switch. 85 originally goes to the pcm as it sends the ground signal to command the air pump on. This will be permanently grounded to the body wherever you want. If you need clarification or other fun wiring stuff, just ask.

FlyingDutchman
05-22-2015, 08:46 PM
:kneeslap: @ tech thread.

I'll just wait for Adam to explain.

Only referenced because of Adams post lol I like the factory look over a random relay hanging off the body

They changed the colors. 30 is battery feed. 87 goes to your accessory, the pump. Gm spliced 86 into 30 so you are going to have to snip that and run it to a wire that has power with key on/running engine. I believe I went to the abs fuse since I removed it. You could splice into it if you are keeping it, we are just sending a signal to the relay to switch. 85 originally goes to the pcm as it sends the ground signal to command the air pump on. This will be permanently grounded to the body wherever you want. If you need clarification or other fun wiring stuff, just ask.

Thanks Adam! Your repsonse is plenty clear enough, I eventually figured it out by setting the relay up outside to figure out what's what, hopefully it works the same when I put it back lol

sweetbmxrider
05-23-2015, 08:16 AM
Yeah its easy stuff. That is universal for all relays, too.

FlyingDutchman
05-23-2015, 09:01 AM
Ok, not seeing voltage at #30. Is there a fuse I can check for this that I may have blown ? I have 10-11 volts at 86, (from abs) grounded 85 using one and/or both wires.

FlyingDutchman
05-23-2015, 10:08 AM
Crisis averted. I blew the fan (25amp) fuse lol