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420a relay help

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TimF

10+ Year Contributor
821
7
Mar 14, 2011
Aurora, Illinois
Hello guys I just need some help finishing up rewiring my ESi. The car was originally had a custom harness for a Haltech ECU but I am reverting the car back to stock to get it running again and there was no way that harness was going to work with a stock ECU.

I was able to snag one cheap from the local junkyard but they only had auto 420a cars (mine is manual). Everything still connected fine other than the pigtails for the auto trans which I know I don't need. The only other issues is I have 3 plugs that go to relays and only 2 relays on my fire wall + 2 more aftermarket ones that where used when the old harness was in.

I was wondering does it matter what plug goes to what relay or if they are the same and is there just one extra because it came off a auto and one wont be used?

The aftermarket Bosch ones can be seen in the picture with the plugs

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The 3 OEM relays are

: (starting with the one closest to the brake fluid res.)
- fuel pump relay
- ASD relay
- eATX relay

The relays are basically the same but the plugs may be slightly different.

The plug for the fuel pump relay is black and should have a
(Black/white) (red/black) (white/red) and a (black/blue) wire.

The ASD plug should be grey

Here is a copy of the electrical manual

http://www.mediafire.com/download/6v705mm1dzx/97-99Electrical.pdf
 
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