Fuel Pump Control Module Ghost code????
07-21-2009, 11:56 AM
#1
Fuel Pump Control Module Ghost code????
Ok heres the deal, I did an AUTO to 5 SPEED swap on my 98 Max and everything is good, I used a 98 manual ECU but now im getting a 0513 "fuel pump control module" code, BUT nothing is wrong with the car.... No stalling, no fuel problems, drives perfect, eveything seems to be ok.... I did some research and eveyone that has this code, has some type of problem so thats why I dont think it could be the actual fuel pump or relay....Is this just a "ghost code"? is there any way to get rid of it?
From what Iv seen the best way to resolve it would be to change the ECU, but is there a certain production date that I should look for or serial number.... Im really stumped on this one....Any help with this would be much appreciated....
Oh and I have reset the ECU about 6 times and the code comes back within 2 days, EVERY TIME!
From what Iv seen the best way to resolve it would be to change the ECU, but is there a certain production date that I should look for or serial number.... Im really stumped on this one....Any help with this would be much appreciated....
Oh and I have reset the ECU about 6 times and the code comes back within 2 days, EVERY TIME!
07-21-2009, 01:02 PM
#3
07-21-2009, 01:49 PM
#4
No, the fuel pump has nothing to do with the FPCM (from a DTC standpoint).
Are you sure you're reading the codes correctly? The FPCM code P1220 is 1305, not 0513.
The only years to have an FPCM are '96 and '97 (well '95 Cali did, but not monitored by the ECU). '98 does not have one, and a '98 ECU does not have the capability to throw that code. Exactly how sure are you that the ECU is from a '98?
You're throwing the code (assuming you're reading it correctly) because you have a '96 or '97 ECU, and your car never came with the FPCM; it's not there, so the ECU throws a code.
Are you sure you're reading the codes correctly? The FPCM code P1220 is 1305, not 0513.
The only years to have an FPCM are '96 and '97 (well '95 Cali did, but not monitored by the ECU). '98 does not have one, and a '98 ECU does not have the capability to throw that code. Exactly how sure are you that the ECU is from a '98?
You're throwing the code (assuming you're reading it correctly) because you have a '96 or '97 ECU, and your car never came with the FPCM; it's not there, so the ECU throws a code.
07-21-2009, 02:05 PM
#5
Yeah that's what I meant 1305. Your absolutley right about the ECU, I'm not 100% sure it's from a 98, I was told it was. I'm currentley calling junkyards to see If I can find a 98 ECU. Has anyone else had this problem swapped tranny or not?
Thanks....
Thanks....
07-21-2009, 03:21 PM
#6
http://forums.maxima.org/4th-generat...ol-module.html
http://forums.maxima.org/2760939-post2.html
http://forums.maxima.org/4th-generat...ap-my-car.html
...etc
07-21-2009, 03:40 PM
#7
There are a few people that I can remember responding to that have had this happen, from putting in the wrong ECU.
http://forums.maxima.org/4th-generat...ol-module.html
http://forums.maxima.org/2760939-post2.html
http://forums.maxima.org/4th-generat...ap-my-car.html
...etc
http://forums.maxima.org/4th-generat...ol-module.html
http://forums.maxima.org/2760939-post2.html
http://forums.maxima.org/4th-generat...ap-my-car.html
...etc
Thanks
07-21-2009, 03:50 PM
#9
07-22-2009, 11:57 AM
#11
oh would a 99 work or would there be other CELs coming up?
07-22-2009, 12:09 PM
#12
The '99 has a different pinout, and the NATS system; won't work (easily).
07-22-2009, 12:11 PM
#13
07-24-2009, 01:02 PM
#14
Actually, one more question, If I can just move a few pins around from the 95, can I just do the same with the ECU I have now 97'? If so, do you have any info on this?
Thanks....
Thanks....
07-24-2009, 01:10 PM
#15
The wires I was referring to earlier are just signal and heater wires for the rear O2, IIRC.
07-24-2009, 01:12 PM
#16
damn.... oh well I guess I have to look for the 98' ECU,
Thanks for the quick response....
07-24-2009, 11:02 PM
#17
The wires I was referring to earlier are just signal and heater wires for the rear O2, IIRC.[/quote]
^^^^Anyone know how to do this exactly? modify the 95 ECU wiring so it fits a 98 manual and not throw the rear o2 sensor code?
I couldnt find anything....
^^^^Anyone know how to do this exactly? modify the 95 ECU wiring so it fits a 98 manual and not throw the rear o2 sensor code?
I couldnt find anything....
07-24-2009, 11:06 PM
#18
There is no 'wiring' associated with the ECU, everything there is all tracks on a PCB. What you do is repin the ECU harness connector on the car. You could open up the ECU, cut the pins, and use some wire, but that's not nearly as easily reversible as the connector repin is.
Anyway, did you look at the pinouts for both years? The heater is 2 pins off.
07-24-2009, 11:15 PM
#19
Wait, what? I thought you have a '98, and are trying to put in a '95 ECU? The way you said it, you're implying the opposite.
There is no 'wiring' associated with the ECU, everything there is all tracks on a PCB. What you do is repin the ECU harness connector on the car. You could open up the ECU, cut the pins, and use some wire, but that's not nearly as easily reversible as the connector repin is.
Anyway, did you look at the pinouts for both years? The heater is 2 pins off.
There is no 'wiring' associated with the ECU, everything there is all tracks on a PCB. What you do is repin the ECU harness connector on the car. You could open up the ECU, cut the pins, and use some wire, but that's not nearly as easily reversible as the connector repin is.
Anyway, did you look at the pinouts for both years? The heater is 2 pins off.
Im still gonna be looking for a 98 5 speed ECU, but I want to keep this as a solid option cuz for some reason, I can find a 95 5 speed ECU pretty easily....
Nah I havent looked at the pinouts of the ECU yet.
When you say "re-pin" are you talking about cutting off the 2 pins and basically soldering them on another spot?
07-24-2009, 11:17 PM
#20
Then that's what you need to do, if you want to figure it out.
You could do that, but it's kind of hackish. All of the pins are easily removed from the connector and swapped around.
You could do that, but it's kind of hackish. All of the pins are easily removed from the connector and swapped around.
07-24-2009, 11:23 PM
#21
Yeah, ill scope it out....
LOL! at this point I really dont care, as long as it works. If I can find a 95 5-speed ECU at a good price, I think ill be down....
LOL! at this point I really dont care, as long as it works. If I can find a 95 5-speed ECU at a good price, I think ill be down....
08-08-2009, 07:55 AM
#22
Just to let everyone know, Pmohr was absolutely right about this situation. I swapped out my 97' ECU for a 98' ECU 5 speed and NO MORE CODE! This should be part of the 5-speed swap stickie, cuz before I did my swap, I couldnt find any info/warning about this situation. If not, no big deal, I just wont delete this thread....
Thanks again Pmohr....
Thanks again Pmohr....
09-28-2010, 09:43 PM
#23
Bumping this thread because I have a 98 Maxima with the same problem. I'm trying to find a 98 Maxima ECU to replace the one I have now but I'm having trouble locating one.
Can I just buy a FPCM and install it to get rid of the ghost code? How difficult is the install?
Can I just buy a FPCM and install it to get rid of the ghost code? How difficult is the install?
09-29-2010, 02:42 AM
#24
Bumping this thread because I have a 98 Maxima with the same problem. I'm trying to find a 98 Maxima ECU to replace the one I have now but I'm having trouble locating one.
Can I just buy a FPCM and install it to get rid of the ghost code? How difficult is the install?
Can I just buy a FPCM and install it to get rid of the ghost code? How difficult is the install?
Easier (and better) to just get the correct ECU for your application.
09-29-2010, 04:43 AM
#25
You could, but you'd also have to run wiring for the FPCM and the drop resistor to have it set up like factory to the point it wouldn't throw the code. This would involve running a wire from the ECU back to the trunk and tapping into the fuel pump wiring there, along with obtaining an FPCM and drop resistor.
Easier (and better) to just get the correct ECU for your application.
Easier (and better) to just get the correct ECU for your application.
If you have problems finding the correct ECU, PM maxfever1987 as he is always stripping 4th gens.
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