First off I am new here and to Honda's and want to introduce my self. My name is Dewayne Waldron, I'm 28, married, 3 kids and I've been in the tuning scene for quite a while now but never in Honda's until now. I just bought a 92 Integra GSR in almost mint condition for a rather low undisclosed price. The fuel pump is shot and the thing I want to know is if any other OEM fuel pumps are compatible. I've got quite a few buddies around with extra parts lying around and I'm trying to make this work without buying a brand new one. If anyone can give me a list of Honda's with interchangeable fuel pumps it would be much appreciated. Thanks in advance.

 

Any G2 Integra fuel pump would work.

However, because changing a F/P on a G2 is such a PITA, I would not be putting in a used pump, unless you like the headache of replacing it if a used one you put in goes out on you. 94

 

^^x2. You have to drop the gas tank. Better hope you don't have much fuel.

 

I don't mean a used one. A friend of mine has a brand new fuel pump for a 95 Prelude, another friend has a 190lph intended for a Dodge Shelby Z. I'm just wondering if I can make others work. I know the tank has to be dropped and it's almost on E. Could I use a 255lph without any other upgrades. Got 1 laying around that's brand new.

 

Part numbers are not even close for the Prelude...
http://www.hondaautomotiveparts.com/...gry5=FUEL+TANK
http://www.acuraautomotiveparts.org/...ystemcomp=List All&vinnoT=&trim=&trans=&view=normal
So I'm guessing no on that, also pretty sure the Dodge pump will not work.

The 255LPH will work, I have a Holly 255LPH in my 94 Integra. 94

 

ok, cool. so is there anything special I need to do to make the 255 work or can I just bolt it in and go?

 

Wouldn't you need to tune the ECU to compensate for the higher pressure fuel pump? With a higher fuel pressure, you'll have more fuel going into the motor with each injector cycle than before.

 

Acura dealership tells me that the GSR fuel pump is different then other year model Integra's but Advanced tells me there all the same form 90-93 no matter the trim model. Who do I believe and where can I get a fuel pump for cheap?

 

I am at the shop right now, but when I get home I will check, I do not think there is a diff.

vladd, the ECU/ECM controls the injector pulse lenght so the correct amount of fuel is injected, also the FPR controles pressure.
I have been running a 255LPH for more then 10 years with the stock LS ECU/ECM.94

 

[QUOTE=

vladd, the ECU/ECM controls the injector pulse lenght so the correct amount of fuel is injected, also the FPR controles pressure.
I have been running a 255LPH for more then 10 years with the stock LS ECU/ECM.94[/QUOTE]

cool, I think I'll just try the wally then.

 

best thing to do is just go buy a new OEM pump: no headaches, definite compatability, OEM reliability... just the best thing to do

 

I went ahead and installed the wally 255. I already had it here, it was brand new and it went in with no problems except for splicing 2 wires. I believe it will be ok. Thanks for all the help guys.

 

Well, evidently it wasn't the fuel pump. Even with the new wally I can't get the car to start and don't even hear the fuel pump working at all. I changed the relay and still nothing. Any ideas?

 

Check for powers at the PGM-FI Main Relay, there are 3 of them.

Unplug the relay and test the lead in the plug, you should have one power with ign. off, two powers with ign. on and three powers with ign. in start.

Yellow/white, hot at all times.
black/yellow, hot with ign. in run position.
Blue/white, hot when ign. in start position.

Plug the relay back in and turn ign. on and the yellow/black should have power.
The second yellow/black should have power for few sec. each time ign. is turned on, if it does not, with ign. on use a jumper lead to jump from the black to the to the green/black, you should have power at the second yellow/black, and fuel pump should run. 94

 

Where are these Relays? Why 3?

 

The PGM-FI Main Relay on your car is under the dash on the drivers side just to the left of the steering wheel.

The PGM-FI Main Relay is made up of two (2) relays, [fuel injection relay and fuel pump relay] a circuit board with a resistor and two diodes all inside one case, [PGM-FI Main Relay].

The PGM-FI Main Relay has the three powers I mentioned above...

Yellow/white, 12V constant, [hot at all times].
Black/yellow, 12V switched, [hot in run and start].
Blue/white, 12V switched, [hot in start only].

All three powers must be there for car to start.

There is also a ground, [black], the output of the injector relay is a yellow/black, the output of the fuel pump relay is also yellow/black and the last lead is the green/black it is the fuel pump relays control lead from the ECU/ECM, it supplies a ground, so if you jump from black to green/black the fuel pump relay will turn on and the fuel pump should run. 94

This will help locate it... http://www.tegger.com/hondafaq/mainrelay.html

 

That is actually the Relay that I replaced and still nothing.

 

Usually fuel issues are caused by bad grounds or the relay in Hondas I would inspect and clean all of them.and why do you think the pump is shot did u check fuel pressure?

 

The pump was shot. The car had been sitting for about 2 years before I bought it and all the bad gas in the caused it to rust up. Even when running a hot wire and ground to the old pump itself it would not work. So i figured it was just the pump.

 

The new one works the do u hear it turn on

 

Ok, I'm not getting ground from the ECU to the relay. If I use a jumper wire for ground the fuel pump will run. Is there something that tells the ECU to ground the relay for the fuel pump or any reason it wouldn't ground? This is after trying 2 different ecu's. Also I'm not getting any spark at all from the distributer. I've also tried a different ignitor without any luck. If anyone can make since of this please help me out. I'm stuck. Is everyone here as confused as I am about this?

 

ECU/ECM must see power to IPG1&2, [ign. switch in both run and start positions] they are the only two (2) yellow/black leads to the ECU/ECM.

Test for power at the injectors, [also yellow/black] with ign. switch in both the run and start position.

Power for the injectors and IPG1&2 is supplied by the injector relay in the PGM-FI Main Relay.

I would also check the CKP sensor in the distributor, [blue/green and blue/yellow] at the ECU/ECM, there are two (2) blue/yellows at the ECU/ECM, the 2nd one is for the IACV.

I would check for continuity between the CKP leads at the distributor and the ECU/ECM, maybe there is a connection problem between the CKP sensor and the ECU/ECM. 94

 

Try swapping the Ecu/distributor with a known good one.

 

Check the distributor cap and rotor? Maybe something is stuck or not giving sparks? Recently happen to my gsr. Had to get a new cap and rotor.

 

any da pump but ur better off buying a new one