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Old 03 Nov 2017, 07:49 PM   #1 (permalink)
sambruce02
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Help running problem fuel issue ?

Hiya guys I'm new to the forum wondered in anyone could offer some advise ? I've been a mechanic for twenty years so I got a good idea about engines currently a diagnostic tech at landrover

My car is a 1999 v5 sti I've had it 12 and a half years hahaha

about a year ago one cold night the in tank fuel pump packed up !! I kicked the tank and it started but when I tried to drive it away and was gutless popping and banging flat as anything so I fitted a Walbro pump 240 and it was perfect for a year until last Friday

After work last week I came out after fixing everybody's else car ha at landrover which are a pain in the bum to fix hahaha it started but couldn't Rev it up doing the same as when the pump packed in ! so this time I put a Rodger Clarke fuel pump 340 in it starts runs fine but under very hard acceleration feels like the pressures dropping off then bang kicks back in just hesitates

I'm sure it's fuel related I was thinkIng the fuel pressure too high and the standard fuel pressure regulator manually opening due to excess pressure so I need to upgrade my regulator

I got fault code 21 coolant temp sender

The fuel pressure is at 3.8 bar at idle
I chanced the maff bout 5 year ago that brought the check engine light up thought!

Dunno??? please help someone on here must have had similar problem
Thanks Sam
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