fuel pump stays priming....
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Honda-Tech Member
Joined: Sep 2008
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From: willow spring, nc, 27592
90 turbo gsr integra. Cant figure out why my fuel pump wont stop priming when i turn the ignition on. Car has been sitting a few months until I had time to put a new clutch in. Got everything together and like I always do before starting turned the ignition on and let it prime. For some reason it just keeps priming any thoughts?
A short to ground on the pump wiring will either do nothing, pump ground wire, or blow a fuse, pump power wire.
It could be a few diff. things, maybe a sticking fuel pump relay in the PGM-FI Main Relay, if it was a short to ground, it would have to be on the ECU/ECM control lead to the fuel pump relay, it may be the ECU/ECM itself.
Some questions...
1-More info on the car, what mods other the turbo, what engine and so on.
2-Does engine start and run normaly?
3-Any security, alarms/kill switches?
4-Any mods/repairs to wiring?
5-Was this a problem before car sat for a few months? 94
It could be a few diff. things, maybe a sticking fuel pump relay in the PGM-FI Main Relay, if it was a short to ground, it would have to be on the ECU/ECM control lead to the fuel pump relay, it may be the ECU/ECM itself.
Some questions...
1-More info on the car, what mods other the turbo, what engine and so on.
2-Does engine start and run normaly?
3-Any security, alarms/kill switches?
4-Any mods/repairs to wiring?
5-Was this a problem before car sat for a few months? 94
Thread Starter
Honda-Tech Member
Joined: Sep 2008
Posts: 302
Likes: 0
From: willow spring, nc, 27592
Car sat for a few months because of no time to mess with it. Needed a clutch and put in a hush 22 hydro conversion. The motor is a built jdm gsr other than sleeves. I have a obdo conversion kit ive used for over 4 years on it with no problems. Im running a p72 ecu with ectune/demon programmer. Fuel pummp is a walbro 255.
I just tried to start the car and get a click from inside the car at the starter relay under the passenger dash. Also when I turn on my ignition I only have one click from the main relay then another when turn key to start car. Also I get power to my starter ftom battery but not from signal wire. Ive done continuity test on main relay too and it checked out..
There was not a problem before car sat other then needing a clutch.
I just tried to start the car and get a click from inside the car at the starter relay under the passenger dash. Also when I turn on my ignition I only have one click from the main relay then another when turn key to start car. Also I get power to my starter ftom battery but not from signal wire. Ive done continuity test on main relay too and it checked out..
There was not a problem before car sat other then needing a clutch.
I would start by making sure the batt. has a full charge and check/redo the main grounds and power connections, if for no other reason then to eliminate them as the problem. 94
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Shouldn't have power to starter signal wire with key on. That's normal but only wirks during cranking. Don't bother checking your battery prob sticking relay. Contacts melts n touched
That is just plain dumb advice.
The car sat for "months" the very first thing that should be checked is the batt., if for no other reason then to elliminate it as the problem.
I am pretty sure the OP means no power on the starter lead when cranking to start, most people would know that.
ncsi, a click from under the dash when trying to start would indicate that the CIS and starter output from ign. switch is good because starter relay energizes, however that does not mean the starter relay is good, no power on the starter lead at the starter would indicate a bad starter relay, test the circuit...
https://honda-tech.com/forums/showth...cm+bypass+jump
The PGM-FI Main Relay should click two times when the ign. is turned on, the first click is the fuel injector relay, the second click is the fuel pump relay, now these two clicks are very close together and can be hard to tell apart, the fact that the fuel pump turns on would indicate that both relays are turning on, [two clicks] unless the fuel pump relay is stuck on, to test, depin the green/black lead from the PGM-FI Main Relay plug and turn on the ign., if fuel pump still turns on the problem is the PGM-FI Main Relay, if not, the problem is the ECU/ECM or a short to ground on the green/black lead.
Green/black is the ECU/ECM control lead for the fuel pump relay, the ECU/ECM supplies a ground to the fuel pump relays coil, power for the fuel pump relays coil is supplied by the fuel injector relay, hense the two clicks very close together.
You may be able to feel the two clicks easier then hear them, hold the PGM-FI Main Relay in your hand and turn on the ign.
What should happen with the PGM-FI Main Relay when you turn on the ign. switch is...
The cluster should "light up" including the CEL.
The PGM-FI Main Relay should click twice, [very close together].
The fuel pump should turn on, [priming].
After no more then a few sec. there should be a 3rd click.
At the same time the fuel pump should stop priming and the CEL should turn off.
When you turn ign. to start there will be a 4th click from the PGM-FI Main Relay, fuel pump relay turning on again, [sounds like that may be happening].
Again, before you do anything else, make sure the main grounds and batt. are good, not eliminating them as the possible problem before troubleshooting other possibilities may be a wast of time. 94
Say what?
That is just plain dumb advice.
The car sat for "months" the very first thing that should be checked is the batt., if for no other reason then to elliminate it as the problem.
I am pretty sure the OP means no power on the starter lead when cranking to start, most people would know that.
ncsi, a click from under the dash when trying to start would indicate that the CIS and starter output from ign. switch is good because starter relay energizes, however that does not mean the starter relay is good, no power on the starter lead at the starter would indicate a bad starter relay, test the circuit...
https://honda-tech.com/forums/showth...cm+bypass+jump
The PGM-FI Main Relay should click two times when the ign. is turned on, the first click is the fuel injector relay, the second click is the fuel pump relay, now these two clicks are very close together and can be hard to tell apart, the fact that the fuel pump turns on would indicate that both relays are turning on, [two clicks] unless the fuel pump relay is stuck on, to test, depin the green/black lead from the PGM-FI Main Relay plug and turn on the ign., if fuel pump still turns on the problem is the PGM-FI Main Relay, if not, the problem is the ECU/ECM or a short to ground on the green/black lead.
Green/black is the ECU/ECM control lead for the fuel pump relay, the ECU/ECM supplies a ground to the fuel pump relays coil, power for the fuel pump relays coil is supplied by the fuel injector relay, hense the two clicks very close together.
You may be able to feel the two clicks easier then hear them, hold the PGM-FI Main Relay in your hand and turn on the ign.
What should happen with the PGM-FI Main Relay when you turn on the ign. switch is...
The cluster should "light up" including the CEL.
The PGM-FI Main Relay should click twice, [very close together].
The fuel pump should turn on, [priming].
After no more then a few sec. there should be a 3rd click.
At the same time the fuel pump should stop priming and the CEL should turn off.
When you turn ign. to start there will be a 4th click from the PGM-FI Main Relay, fuel pump relay turning on again, [sounds like that may be happening].
Again, before you do anything else, make sure the main grounds and batt. are good, not eliminating them as the possible problem before troubleshooting other possibilities may be a wast of time. 94
That is just plain dumb advice.
The car sat for "months" the very first thing that should be checked is the batt., if for no other reason then to elliminate it as the problem.
I am pretty sure the OP means no power on the starter lead when cranking to start, most people would know that.
ncsi, a click from under the dash when trying to start would indicate that the CIS and starter output from ign. switch is good because starter relay energizes, however that does not mean the starter relay is good, no power on the starter lead at the starter would indicate a bad starter relay, test the circuit...
https://honda-tech.com/forums/showth...cm+bypass+jump
The PGM-FI Main Relay should click two times when the ign. is turned on, the first click is the fuel injector relay, the second click is the fuel pump relay, now these two clicks are very close together and can be hard to tell apart, the fact that the fuel pump turns on would indicate that both relays are turning on, [two clicks] unless the fuel pump relay is stuck on, to test, depin the green/black lead from the PGM-FI Main Relay plug and turn on the ign., if fuel pump still turns on the problem is the PGM-FI Main Relay, if not, the problem is the ECU/ECM or a short to ground on the green/black lead.
Green/black is the ECU/ECM control lead for the fuel pump relay, the ECU/ECM supplies a ground to the fuel pump relays coil, power for the fuel pump relays coil is supplied by the fuel injector relay, hense the two clicks very close together.
You may be able to feel the two clicks easier then hear them, hold the PGM-FI Main Relay in your hand and turn on the ign.
What should happen with the PGM-FI Main Relay when you turn on the ign. switch is...
The cluster should "light up" including the CEL.
The PGM-FI Main Relay should click twice, [very close together].
The fuel pump should turn on, [priming].
After no more then a few sec. there should be a 3rd click.
At the same time the fuel pump should stop priming and the CEL should turn off.
When you turn ign. to start there will be a 4th click from the PGM-FI Main Relay, fuel pump relay turning on again, [sounds like that may be happening].
Again, before you do anything else, make sure the main grounds and batt. are good, not eliminating them as the possible problem before troubleshooting other possibilities may be a wast of time. 94
Your assuming the car doesn't run. All he's asking is the fuel pump stays running
HTML Code:
I just tried to start the car and get a click from inside the car at the starter relay under the passenger dash. Also when I turn on my ignition I only have one click from the main relay then another when turn key to start car. Also I get power to my starter ftom battery but not from signal wire.
HTML Code:
I just tried to start the car and get a click from inside the car at the starter relay under the passenger dash. Also when I turn on my ignition I only have one click from the main relay then another when turn key to start car. Also I get power to my starter ftom battery but not from signal wire.
I am not saying it should and I don't think the OP is either.
The OP said he was trying to start the car and had power on the batt. lead to the starter but not the starter lead to the starter, I can't interpret that to mean anything other then, there is no power on the starter lead WHEN TRYING TO START THE CAR, in which case there should be power on the starter lead.nuff said. 94
The OP said he was trying to start the car and had power on the batt. lead to the starter but not the starter lead to the starter, I can't interpret that to mean anything other then, there is no power on the starter lead WHEN TRYING TO START THE CAR, in which case there should be power on the starter lead.nuff said. 94
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