Turbo R fuel pump relay - Rolls-Royce and Bentley Forums
 
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post #1 of 9 (permalink) Old 02-16-2016, 03:54 PM Thread Starter
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Turbo R fuel pump relay

Hello alll,

I have an ex-development 1991 Turbo R which has a coil per cylinder engine and Zytek ECU which doesn't seem to want to start.

This has been traced to due to either the wrong or dead relay in the fuel pump holder (bought the car as a non-runner)

My questions is, would anyone know what the correct part number (either RR or Bosch) is for the relay in the engine bay which controls the feed to the fuel pump please? If I bridge the relay holder terminals with a short piece of wire, the fuel pumps whirr into life and she runs and drives beautifully, so would just prefer this happened on the key, rather than under the bonnet to "plug in" a 12v feed with a random piece of wire!

Many thanks for any help or advice!


Thanks,
Matt
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post #2 of 9 (permalink) Old 02-17-2016, 03:20 AM
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Hi Mat Put a Photo up so we can see which relay you mean or give me a Ring on 07793394355

Bentleyman22
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post #3 of 9 (permalink) Old 02-17-2016, 04:26 AM
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Hi Matt
I would think it's more likley a supply missing from the relay , don't know on your car but the relay used to be supplied by the oil pressure switch( so the starter wouldn't engage with the engine running)
My advice would be to check if you have a supply to engage the relay.
Hope that helps
Mike

chassis 27650
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post #4 of 9 (permalink) Old 02-17-2016, 02:52 PM Thread Starter
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Thank you Gents!

I'l try and get a pic, but I spoke to my local dealer today and he suggested I change the brown engine management relay which he thinks feeds the fuel pump relay, this may sort things out as apparently these brown EMS relays are usually the culprit.

One on order and arriving tomorrow - will feedback!


Thanks again chaps
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post #5 of 9 (permalink) Old 04-30-2016, 07:07 PM
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Hi everyone;

I have an `89 Turbo R that is spec`d for the US market and I am attempting to locate and test my fuel pump relay. The Rolls Royce Owners Club of Australia documentation online only goes as far as 1988. How would one go about locating and testing for the relay.

Thanks!
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post #6 of 9 (permalink) Old 05-01-2016, 05:34 AM
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From memory I think they are the same.

Right hand side of engine bay under cover.
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post #7 of 9 (permalink) Old 05-01-2016, 11:25 AM
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I have located the number of relays under the right side of the engine bay but which one is it? Are there any markings to distinguish what each function each relay serves?
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post #8 of 9 (permalink) Old 05-01-2016, 09:21 PM
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Hi, it should be marked on a sticker on the underside of the cover.

Regards, Paul Yorke.
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post #9 of 9 (permalink) Old 05-02-2016, 05:24 AM
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Just noticed yours is a test car. There may not be a sticker there.
But if you check wiring diagram colours you should be able to locate it.
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