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Old 07-15-2013, 07:32 AM
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Remember that I said that I am 99.9% sure it is the fuel pump, to verify that it is 100.00% the pump, you will need to verify that you have power at the connector to the pump. When you remove the access cover to the top of the gas tank, disconnect the electrical connector and test it for 12 volt power when the key is turn to the start position. If you have power at the connector then it is a problem with the fuel pump and nothing else.

Here's a video from one of my fav youtube poster Eric the car Guy.

https://www.youtube.com/watch?v=piOzN1tZI_E
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Last edited by upallnight; 07-15-2013 at 08:05 AM.
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Old 07-15-2013, 01:48 PM
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Quote:
Originally Posted by upallnight View Post
Remember that I said that I am 99.9% sure it is the fuel pump, to verify that it is 100.00% the pump, you will need to verify that you have power at the connector to the pump. When you remove the access cover to the top of the gas tank, disconnect the electrical connector and test it for 12 volt power when the key is turn to the start position. If you have power at the connector then it is a problem with the fuel pump and nothing else.

Here's a video from one of my fav youtube poster Eric the car Guy.

https://www.youtube.com/watch?v=piOzN1tZI_E
Power was about 2.5 volts with the switch on. I was reading that the voltage should fluctuate or change when the vehicle is running, or when you crank the vehicle.
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Old 07-15-2013, 02:20 PM
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I have to ask, would the pump going out be causing the issues I have been having?
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Old 07-15-2013, 06:20 PM
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Let see, bad pump could mean less fuel so that would mean a lean running engine which would be a P0171 and P0174 code. A bad pump could mean no fuel pressure so the engine can't run.
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2006 Infiniti G35
2001 BMW 3.0I E53 X5 Build date 08/2000 SOLD
Lotus Europa 1970 Destroyed by fire
Lotus Europa 1970 S2 Renault Powered
Lotus Type 52 1970 Twincam Webers Powered
PORSCHE 911 Targa 1982 The Garage Queen
Audi Avant donated to Kars for Kids
BMW 525IT Sold
Audi 4000CS Quattro Sold
Jensen Healey Lotus Powered Sold
Opel 1900 Sold
Triumph Spitfire 1971 Sold
Triumph Spitfire 1968 Sold
Plymouth "Cuda" 340 Six pack SOLD
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Old 07-15-2013, 06:28 PM
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Originally Posted by upallnight View Post
Let see, bad pump could mean less fuel so that would mean a lean running engine which would be a P0171 and P0174 code. A bad pump could mean no fuel pressure so the engine can't run.
Well I am getting a pump today in about an hour. I'll fill you guys in.
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