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My 03 Nissan Xterra is idling weird. It starts fine then goes into a cycle of rpm loops where it climbs to 1800 and drops to 1300 and keeps surging. I ran the codes and got p0328, p0174 and p0420. Any ideas?
po328 is a knock sensor code ,0174 &0420 are emissions codes. Possibly a faulty knock sensor throwing out the timing, It may just have a vacuum leak causing it to run lean, affecting the timing causing knock sensor code, Scan for live readings, ck knock sensor, o2 sensors, A/F ratio & converter,clogged injector ect. Good luck
on May 16, 2019
Abs light,,pulsating, when light off, when on
When the abs light is off and u press brake pedal the abs is activated for some reason. When light is on the abs is deactivated. Take vehicle to a different garage. U can also do this when light is on take vehicle to AutoZone or have someone with a abs scanner scan for codes. This will give u a idea what's wrong. Your mechanic don't know what they are doing and just guessing.
on Nov 20, 2017
Xterra 2002 6 cyl. S/C - Battery reversed
found this on another board, hope it helps..jm
That is correct. If the 100A AlternatorFuse is blown, the starter will not crank, since no current can get to the neutral safety switch and the activating coil of the starter relay.
on Jul 25, 2017
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