Fuel pump help, Please |
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Fuel pump help, Please |
gster |
May 19 2018, 02:55 PM
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#1
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Newbie Group: Members Posts: 11 Joined: 15-April 17 From: canada Member No.: 21,021 Region Association: Canada |
I've installed an Airtex pump on the car as recommended by many.
The car does run but terribly.... I hope I've installed correctly and put the "T" adapter in the right place. The fuel line from the tank goes to the filter then to the pump. The pump output line is then T-eed to the other 2 lines.... Have I got this wrong? Is the filter restricting flow? The car has been sitting awhile and I've put fresh gas in. Otherwise nothing has changed. Any help is appreciated. |
jcd914 |
May 19 2018, 08:14 PM
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#2
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Advanced Member Group: Members Posts: 2,081 Joined: 7-February 08 From: Sacramento, CA Member No.: 8,684 Region Association: Northern California |
The Fuel pressure regulator in the engine compartment dumps fuel to the fuel return line back to the tank. The 3 port fuel pump also has a pressure relief valve that can dump fuel to the return line to the tank. The return line from the fuel pressure regulator and the pressure relief valve on the pump are "T"d together near the pump.
If you replace the 3 port pump with a 2 port pump you eliminate the "T" fitting and the old line from the pump to the "T". The return line from the pressure regulator goes straight to the fuel tank. You should also be sure you are using fuel line rated for Fuel Inject pressure and the ethanol our gas has these days, J30R9 rating I believe. I have not seen any cloth braided fuel line that is rated for I pressure. Jim |
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