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Old 26-07-2005, 03:57 PM   #1
1TUFEA
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Post Fuel Pump ???

im in the middle of my mpfi conversion and want to know where the fuel pump is located on the multi point engines and advice on buying new ones would it improve performance or just enhance it ???

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Old 26-07-2005, 04:08 PM   #2
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In the petrol tank

lift boot carpet
undo 8 screws holding down metal plate back left
get the lock ring off, screwdriver + hammer + patience and effort
lift out the fuel pump and replace

buying new wont do much, if your injectors are not using the fuel, it just goes around in a circle and back to the tank, so unless you plan bigger injectors and big cam, save the money if you can.
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Old 27-07-2005, 06:08 PM   #3
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Quote:
Originally Posted by 1TUFEA
im in the middle of my mpfi conversion and want to know where the fuel pump is located on the multi point engines and advice on buying new ones would it improve performance or just enhance it ???
If your car is cfi injection & you
are converting to mpi u will need
a mpi pump as they pump out
200 psi as cfi pumps out 100 psi
so the car will not run properly it
will not idle etc.
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Old 27-07-2005, 11:25 PM   #4
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My advice is if your going to swap your fuel pumps over, get a new stock MPFI fuel pump. Ive used 4 second hand ones so far and they all seem to die after a while.
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Old 28-07-2005, 01:55 PM   #5
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fuel pumps that have been left to dry out over time need to be imersed in petrol for a bit before installing to the tank,,this is to rejuvinate the seals and ,,if you don't it won't last long as you've found out..
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Old 28-07-2005, 02:00 PM   #6
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The 2nd hand EF pump I am running at the moment came from the wreckers to home and then into my tank it has been fine so far, not a sign of a problem, my old pump was still going and when I pulled it out I reckon it was the orginal one.
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