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My world for a wiring diagram!!! 200

uid 13809's pic
posted by  Alex Z on  Fri Apr 25 19:37 CST 2003
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last visit: Thu Oct 3 04:30 CST 2013
[RELATED]

So your car is running real rich. Let's start with the basics:

Main engine wiring harness okay? If no, all bets are off until you replace it.

Does your mileage improve with the lambda relay and/or the frequency valve unplugged? If yes, see below.

Is your frequency valve buzzing? If yes, the relay is probably okay.

How old is your oxygen sensor, and what condition is it in? If it's old, of unknown age, and/or looking funky.. replace it. It's a $10-$30 part. If that doesn't solve anything, pop open the relay and look for cracked soldering.. fix or replace (cheap either way).

I've got the wiring diagram manual (prelim model year 85) behind me. I'm waiting for the !$@! USPS to deliver the (K-Jet, IRS, Laycock OD) manuals I've “ordered”. No scanner, but I don't think you really need an EE degree to diagnose K-Jet (altho it is a royal pain if you ask me).

I feel your pain. My sedan needs both fuel pumps to be replaced (or so it seems by the god awful noise at a full tank). However, I've managed to make it run far worse by tinkering with the #1 injector (and still having not managed to separate the holder from the injector. At least with LH-Jet, the injectors are rebuildable and easy to remove.

- alex

'85 244 Turbo
'84 245 Turbo






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