fuel pump on classic impreza
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fuel pump on classic impreza
Hi guys
I have a JDM ver4 STi wagon that I fitted a deatchwerks dw200 (300lph) fuel pump. This pump is appx 12-14 months old.
Pump was great until last month it stopped priming so I couldn't start the car. I tapped and jiggle the connector and that seems to do the trick.
So just a few days ago the car wouldn't start and I don't hear the pump priming on startup. I tried to tap and jiggle the connector like last time with no luck.
I had the tow truck deliver my car to my home. I told him about my issue and he said to try and bang on the bottom of the tank. I was banging on the tank while he turned the key and the pump started to prime and the car started. Tow truck driver mentioned the motor is seizing up.
I'm not sure if the fuel pump is going? or just a loose connection? I'm getting power to the harness.
I have a JDM ver4 STi wagon that I fitted a deatchwerks dw200 (300lph) fuel pump. This pump is appx 12-14 months old.
Pump was great until last month it stopped priming so I couldn't start the car. I tapped and jiggle the connector and that seems to do the trick.
So just a few days ago the car wouldn't start and I don't hear the pump priming on startup. I tried to tap and jiggle the connector like last time with no luck.
I had the tow truck deliver my car to my home. I told him about my issue and he said to try and bang on the bottom of the tank. I was banging on the tank while he turned the key and the pump started to prime and the car started. Tow truck driver mentioned the motor is seizing up.
I'm not sure if the fuel pump is going? or just a loose connection? I'm getting power to the harness.
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I'm hesitant to drive this as I don't want to pay for another tow truck incase it acts up again lol.
Last edited by awdftw; 29 October 2016 at 03:46 PM.
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Thanks I will do that. I will clean the contacts when I get home. I'm pretty sure none of the pins are shorting. I used a test light and I do get power to the harness. Is there a way I can test for ground issue?
I'm hesitant to drive this as I don't want to pay for another tow truck incase it acts up again lol.
I'm hesitant to drive this as I don't want to pay for another tow truck incase it acts up again lol.
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haha thanks. With the money I spent for the tow truck I'd could of got that.
Do you know how many volts I should get when testing the harness connectors?
Do you know how many volts I should get when testing the harness connectors?
Last edited by awdftw; 29 October 2016 at 07:38 PM.
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Ive read that an immobilizer could cut the power.
Does anyone know where it would be located? I found a blackbox under the driver side vent behind the dash.
Does anyone know where it would be located? I found a blackbox under the driver side vent behind the dash.
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Update, I had a friend come by and measure voltage and check the wires. I'm getting 11 volts from the relay, 11 volts from the harness, and 11 volts from the actual pump. We took out the pump, and did the test while it wasn't in the tank. This test was done with the key turned to ACC. The manufacture states the minimum volt to run is 6, max is 18.
The wires did not look corroded, but the connector on the harness, not the one on the pump assembly, looks burnt/melted. Any ideas on how this happened?
The wires did not look corroded, but the connector on the harness, not the one on the pump assembly, looks burnt/melted. Any ideas on how this happened?
#12
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Update, I had a friend come by and measure voltage and check the wires. I'm getting 11 volts from the relay, 11 volts from the harness, and 11 volts from the actual pump. We took out the pump, and did the test while it wasn't in the tank. This test was done with the key turned to ACC. The manufacture states the minimum volt to run is 6, max is 18.
The wires did not look corroded, but the connector on the harness, not the one on the pump assembly, looks burnt/melted. Any ideas on how this happened?
The wires did not look corroded, but the connector on the harness, not the one on the pump assembly, looks burnt/melted. Any ideas on how this happened?
#13
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Possibly dirty contacts on the fuel pump relay, not sure how the immobiliser will be wired on a Canadian car but the alarm system fitted to a UK also has a relay that cuts the fuel pump and these can suffer with carbon build up on the relay contacts as well. 11 volts sounds a little low unless your battery is low.
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Possibly dirty contacts on the fuel pump relay, not sure how the immobiliser will be wired on a Canadian car but the alarm system fitted to a UK also has a relay that cuts the fuel pump and these can suffer with carbon build up on the relay contacts as well. 11 volts sounds a little low unless your battery is low.
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The pump primes now after the tow truck driver banged on the fuel tank mentioned in my original post. Just trying to figure out why it would quit, then work all of a sudden.
Last edited by awdftw; 30 October 2016 at 09:58 AM.
#18
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Check the earth to the pump I had to put a separate earth i.e. Drill a hole locally , big screw with a short bit of wire and splice it into the plug earth on the pump as it was breaking down, did the trick for me