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relay wiring quagmire, need help :- { 200

uid 18083's pic
posted by  lucid on  Wed Jun 30 03:27 CST 2004
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last visit: Fri Oct 24 12:31 CST 2014
[RELATED]

...when i wired the relay like the bentleys shows on page 240-8...

Mike, I don't like to make this thread any longer (tried to email you direct but url didnt work), but wanted you to know that Bentley 240-8 diagram is NOT complete. You did good to find it and do what you did. But the whole Lambda ECU (O2 sensor etc.) is missing. It gets activated from Fuel relay point 87b, but isn't shown at all on 240-8.

Assume there is a Blue wire coming off that little square where the 87b Blue wire heads north to the WUR/CPR.

Then to see the tie-in, go to page 390-29, grid N-2. Item #159 on the right is the "Lambda relay" and it should get picked at terminal 86, by the blue wire from 99/87b, which is your Fuel relay (also shown back at grid B2/3). ALL of this major stuff on 390-29 is missing on 240-8, and I think it may be key to the rich problem that you get when you got the Fuel relay to working.
The Lambda relay is a cube out on the left fender rail near the hi/lo relay.

--
Bruce Young
'93 940-NA (current) — 240s (one V8) — 140s — 122s — since '63.






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