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My latest project involves removing the 2.6 four cylinder engine and replacing it with a 2.5 engine. Since the 2.6 uses a mechanical fuel pump, here's my question:

Can I simply put the electric fuel pump in the gas tank and run the wiring into the harness, with the help of wiring diagrams????

I have been told I can use the lines from the mechanical pump lines going to the fuel tank. Is this correct??

Thanks, as always, for your assistance.

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It is an 89, so I won't have to worry about that 39PSI. I'll check the tanks for differences. Thanks very much!

I know you'll need a return line back to the tank from the 2.5 fuel pressure regulator. I have my doubts that a tank from a 2.6 will work because it probably doesn't have much of a baffle or a reservoir for the pickup sock. That means when you corner with a 1/3 of tank or less, the pickup from the electric pump will get air in it and the car will stall. You would also need to make sure the opening is the right size for an electric pump and the depth is right for the pickup to be at the bottom.

What year 2.5 are you putting in? Fuel pressure requirements for EFI cars were 15 PSI up until 1991 and in that year they went to 39 PSI.