Question about 1986 Porsche 911

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Fuel problem - put 12 volts to the front fuel pump and she is working - car fired after that but stalled right out again -1986 911 turbo

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Check your fuel pump relays.
There is a trick i have found with the relays.
The correct one for fuel pump is RED not BLACK.
Blackone would not work for the fuel pump and make sure you do not use aftermarket relays.
proporsche

Posted on Feb 18, 2010

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Fuel pump is working, but it has to deliver a correct rate to maintain correct pressure in order for the Fuel distributor work. The car was fires shortly since there is some fuel at initial burst, since the rate is low so pressure could not be maintained in the line to continuously support the distributor. Need to replace the pump and the fuel accumulator.

Posted on Sep 26, 2009

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1991 eagle talon non turbo will turn over but wont start just replaced the computer in it and havent even drove it a mile my brother thinks its the fuel pump because u cant here it kick on when u first...


Hello, Joey, thank you for the direct question. Here is an easier more accurate way to troubleshoot your problem, other than the one proposed.

If the fuel pump is in doubt, check for fuel pressure at the fuel rail on right side of the engine. With the key in the run position you should have about 40 PSI. If pressure is present, but low, check for a restricted fuel filter and voltage at the connector, on top of the fuel pump. You should have 12 volts there. A lot of times a bad ground will cause a drop in voltage. The pump will still run, but will be weak. You should be able access it from under the backseat.

Another area to inspect is the CAS. If the ECU does not receive a signal the engine is trying to start or is running, it will not fire the fuel pump.
I hope this info was helpful & good luck with the Talon.

Sep 18, 2011 | 1991 Eagle Talon

3 Answers

No power to fuel pump car was running fine just quit repalced fuel pump no power to pump, car will start when spraying starting fluid in to intake, is there a fuse ? also replaced ECM, fuel filter,...


Check for 12 volts power at the fuel pump harness. If no power is going to the pump, check the fuel pump relay. Also, check the fuel pump inertia switch. Ford usually has it on either inside left or right rear trunk fenders.

Apr 09, 2010 | 1987 Ford Taurus

1 Answer

2000 dodge durango trys to start and cuts right back off. Fuel fiter been changed and it is firing at the cap. Is it the fuel pump


make sure that your battery is good, put a multimeter on it, make sure you have over 12 volts on it and start it and see where the voltage drops to. If it drops below 11 volts, you have a weak battery, It should actually never drop below 12, If good, check your relay for the fuel pump. There are several that are the same in the relay panel. Driver side in engine compartment. Swap relay with another and start.

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1 Answer

Not getting any fuel dont know where the relay or


Check out the following. Year of model may be different but it should be pretty much in same location.

http://autorepair.about.com/library/images/bl023a-lib.htm

The fuel pump relay is located behind the 12 volt junction block and the fuel pump fuse holder on the earlier models.drivers side fire wall.on later models its located in the relay center on the right shock tower or in the right front corner of the engine compartment.

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Mercury Topaz loses power while driving, and stalls out


Check fuel pressure. Sounds like a bad pump or plugged fuel filter.

Mar 19, 2009 | 1989 Mercury Topaz

1 Answer

Will not stay running


put a pump back into the tank --and this will take care of the fuel delivery problem

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