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Author Topic: Fuel trim malfunction??  (Read 2352 times)

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RobseyMV6

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Re: Fuel trim malfunction??
« Reply #15 on: 07 January 2011, 19:57:06 »
There was a fuel filter in boot when i got the car it looks old on the car, will do in morning, rams not checked as no one here to look while i rev.... morning now, but really thank you for all things so far  :y
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Marks DTM Calib

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Re: Fuel trim malfunction??
« Reply #16 on: 07 January 2011, 20:03:20 »
Rams not working will give poor low down torque and not loss of upper end power.
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RobseyMV6

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Re: Fuel trim malfunction??
« Reply #17 on: 07 January 2011, 20:22:12 »
Its ok up till 4000rpm area sometimes better then others from lights.... might change injector rail and inlet tomorrow to. after all that i'm lost with the problem
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Marks DTM Calib

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Re: Fuel trim malfunction??
« Reply #18 on: 07 January 2011, 20:29:22 »
Change the fuel filter first if it looks goosed.

Willy nilly part changing just adds a load more unknowns into the equation.
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RobseyMV6

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Re: Fuel trim malfunction??
« Reply #19 on: 07 January 2011, 20:34:09 »
Will update tomorrow, thanks!
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RobseyMV6

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Re: Fuel trim malfunction??
« Reply #20 on: 07 January 2011, 21:43:47 »
Rams not working and no air left in vac pipe when pull off on top right of engine, this the vac box problem?
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RobseyMV6

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Re: Fuel trim malfunction??
« Reply #21 on: 08 January 2011, 10:23:08 »
Replaced vac box and fuel filter with the same problems :( took pipe off back top right off engine while running and is sucking check all vac pipes they are ok.
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RobseyMV6

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Re: Fuel trim malfunction??
« Reply #22 on: 08 January 2011, 14:18:08 »
Change chank sensor coil packs even tied multi ram open and still does the same just holds gear at just over 4000rpm engine is dead! driven alot of omegas in my time and i can't work this one out, time for tech 2 i think?
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feeutfo

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Re: Fuel trim malfunction??
« Reply #23 on: 09 January 2011, 00:30:28 »
Blocked exhaust? :-/
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Kevin Wood

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Re: Fuel trim malfunction??
« Reply #24 on: 09 January 2011, 01:11:10 »
Have you tried a known good MAF yet?

Kevin
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RobseyMV6

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Re: Fuel trim malfunction??
« Reply #25 on: 09 January 2011, 01:25:11 »
Quote
Have you tried a known good MAF yet?

Kevin


Tried two no change  :(
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