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timspu timspu is offline
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Join Date: Jul 2012
Location: Devon. UK
Posts: 218
With wires connected I am seeing just under 10.6 volts at the rear. Pump is quiet when front pump is running. The filter is about 1500 miles old. With pressure gauges fitted the warm setting is 3.9 bar . At 0.8 bar boost I have 3 bar fuel pressure. All on the leaner side. Idle Afr is 13.5. With both pumps running I have 6.2 bar pressure measured at the WUR.
Do not understand why I cannot lean AFR above 10.4 under boost and why on odd occasions the AFR's stick around 11.6 until I switch it off and let it cool for a while. Its as if the WUR has gone onto to cold start.

Car runs fine otherwise and starts ok.

Old 05-06-2013, 11:02 PM
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