Fuel pump acting up - Page 2 - G35Driver - Infiniti G35 & G37 Forum Discussion

Sep 29, 2022 | 04:11 PM

#16

shurur

Registered User

Joined: Jun 2013

Posts: 276

Likes: 39

From: Tampa

2003 G35 Coupe

Quote:

Originally Posted by MattFTP

So today I installed a new fuel pump assembly and a picknpull ipdm. I go to put the ignition on and after a few minutes the “Service engine soon” light comes as in sequence with the fuel pump turning off and on. The light and pump will turn on and off with each other. Only code i’m getting is about a knock sensor bank 1 and I don’t think that will cause this issue. I am thinking the ECU is toast. I’ve checked the ecu fuse and relay as well as the fuel pump fuse and relay. I’m lost at this point. Anyone got any ideas?

Thanks in advance!

It appears that installing a new/used IPDM may require you to adapt it (Audi speak) to the ECU.
Q: was the original IPDM actually bad?..or did you replace it with the FP just because?

I would put the original IPDM back in and see what happens from there.

https://g35driver.com/forums/souther...-re-learn.html

Sep 29, 2022 | 05:07 PM

#17

cleric670

BANNED!!!

Joined: May 2017

Posts: 14,837

Likes: 2,497

From: Washington State

Coupe 6MT Premium RAS

There are a few different IPDMs

There is a white sticker on the side, it needs to be the correct parts INTERCHANGE number, doesn't necessarily need to be the exact same number.

For examples the 2004.5+ cars can use Nissan part numbers 284B7-AQ006, 284B7-AQ016, 284B7-AQ066 or the current revision 284B7-AQ01B

2003-2004.5 5AT uses 284B7-AL500, 284B7-AL50 or the newest revision 284B7-AL51A

2003-2004.5 6MT uses 284B7-AL505, 284B7-AL50B or the newest revision 284B7-AL51B

Oct 2, 2022 | 11:56 PM

#18

MattFTP

Thread Starter

Registered User

Joined: Sep 2022

Posts: 12

Likes: 0

2003 Infiniti G35 Coupe A/T

Quote:

Originally Posted by cleric670

I put the old IPDM in and it had the same issue but no windshield wiper issue like the junk yard one. I ended up buying a used IPDM with the same number from the OG one and it did the same issue, ecu output to the fuel pump fuse was going in and out. I’m assuming an ECU issue still.