So i got the clutch job done and adjusted the valves and new gear oil, and when i went to go start the car it wouldn't, there is no voltage getting to the fuel pump and you don't hear it priming.....now i'm not sure what to do.
Oh great infinite knowledge of 914 world please help me
Full Version: Fuel pump help
Check the rear fuse on the relay board
fuse was intact and looked fine maybe ill try a different fuse in place
Knowing the year, the engine size and the fuel system would help.
Jim
Jim
See the FP troubleshooting procedures here:
http://bowlsby.net/914/Classic/TechNotebook.htm
1/2 way down the page.
http://bowlsby.net/914/Classic/TechNotebook.htm
1/2 way down the page.
QUOTE(jcav @ Mar 7 2016, 05:51 PM) 
So i got the clutch job done and adjusted the valves and new gear oil, and when i went to go start the car it wouldn't, there is no voltage getting to the fuel pump and you don't hear it priming.....now i'm not sure what to do.
Oh great infinite knowledge of 914 world please help me
Think we've all been through this nightmare. My last gremlin turned out to be a faulty plug on the pump. Ended up just cutting it off and splicing on clips to insert into the pump. Check to see if you have 12v at the plug when the key is turned...if not then it's back to the relay board.
My first go round was caused by a bad pump which I replaced (probably too quickly in hindsight). I should have blown it out first and tested it again. A tiny piece of debris in the fuel will block the pump and you'll get the same "no prime" when you turn the key.
Thanks all i will have to look into that,
For reference the car is a 1975 with the 1.8
For reference the car is a 1975 with the 1.8
Make sure the resistor pack is plugged in
QUOTE(jcav @ Mar 7 2016, 07:31 PM)
Thanks all i will have to look into that,
For reference the car is a 1975 with the 1.8
The L-Jet system used on the 1.8L does not prime like the D-Jet system does. It also doesn't use any relays or fuses on the relay board.
Disconnect the yellow lead on the starter.
Turn the key to start and listen for the fuel pump.
Second, disconnect the air flow meter from the rubber elbow that connects it to the throttle body.
Turn the key on, and open the air flow meter with your finger.
Both of those should make the pump run.
If it doesn't work, check the yellow wire coming out of the engine harness at the 12 pin connector on the relay board. Make sure it is plugged into one of the two rear spade connectors on the 4 pin connector located in the left rear of the relay board.
If that is OK, check the double relay located under the battery. Make sure both plugs are in solid, and make sure the big red wire is connected to the battery.
If everything is ok there, unplug the fuel pump and put a test light in it's place. Repeat the steps above and see if the light comes on.
QUOTE(ClayPerrine @ Mar 8 2016, 03:39 PM)
QUOTE(jcav @ Mar 7 2016, 07:31 PM)
Thanks all i will have to look into that,
For reference the car is a 1975 with the 1.8
The L-Jet system used on the 1.8L does not prime like the D-Jet system does. It also doesn't use any relays or fuses on the relay board.
Disconnect the yellow lead on the starter.
Turn the key to start and listen for the fuel pump.
Second, disconnect the air flow meter from the rubber elbow that connects it to the throttle body.
Turn the key on, and open the air flow meter with your finger.
Both of those should make the pump run.
If it doesn't work, check the yellow wire coming out of the engine harness at the 12 pin connector on the relay board. Make sure it is plugged into one of the two rear spade connectors on the 4 pin connector located in the left rear of the relay board.
If that is OK, check the double relay located under the battery. Make sure both plugs are in solid, and make sure the big red wire is connected to the battery.
If everything is ok there, unplug the fuel pump and put a test light in it's place. Repeat the steps above and see if the light comes on.
Awesome ill try this tomorrow thanks!
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