1996 Nissan Sentra P0170, P0325, P1401

mckinneycm · **Joined:** Tue Apr 29, 2008 5:17 pm **Posts:** 1

I'm getting these three codes from my 96 Nissan Sentra:

P0170 - Fuel trim malfunction
P0325 - Knock Sensor
P1401 - EGR Valve Temperature Sensor

Could these all be related? I was reading something about an intake issue could cause these codes. Is that correct? Any help would be great.

Sponsored Links · **Joined:** 29 Jun 2004 08:12 pm **Posts:** N/A

jeff compton · **Posted:** Tue Apr 29, 2008 5:40 pm

I would think the first and third may be! knock sensor dtcs very common on nissans

fuel injection center · **Joined:** Tue Sep 11, 2007 5:46 pm **Posts:** 191

helo

The knock sensor code is a separately code that is resolved by changing the sensor.
If you are having an EGR problem then could produce the P0171 but not necessarelly. What you want to try at first is to check the operation of the EGR valve, check if it is openning and clossing good, if it is working properlly, remove the EGR and clean the passages and look for carbon build also check the vacuum hoses that are attached to the EGR valve, check if they aren´t broken and if they are pulling vacuum.
Do you have an erratic idle ? hesitation on desacceleration ?
If you think the EGR valve is working properly then change the BVPT-valve (the one that is besides the egr valve).

1996 Nissan Sentra P0170, P0325, P1401

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