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timspu timspu is offline
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Join Date: Jul 2012
Location: Devon. UK
Posts: 218
Thanks for the info i have found the link.
I checked the voltage and i have 12 volts at the rear pump with the wires disconnected, i swapped both relays and the voltage remains the same.
What was your measured voltage for you to replace the relays?
Sounds like the pump is running correctly when both pumps are on. i was trying to link my sudden drop in AFR with a drop in fuel pressure. Maybe i am barking up the wrong tree.
Will complete the test procedure once i have the adaptors to fit a gauge.


Old 05-06-2013, 10:24 AM
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