Hi

I have a 2008 G35 and I have a SEL light on with the following codes. Any thoughts on troubleshooting ? Appreciate the help in advance.

Car Scanner ELM OBD2
DTC report
Selected brand: Infiniti
VIN: JNKBV61F98M256799

============1==============
P2A00
Raw code: 2A00
ECU: Engine control unit
Status: Confirmed
OBDII: Heated oxygen sensor (HO2S) 1, bank 1 - circuit range/performance

============2==============
P0850
Raw code: 0850
ECU: Engine control unit
Status: Pending
OBDII: Park/neutral position (PNP) switch - input circuit malfunction
Infiniti: Park / Neutral Switch Input Circuit

============3==============
P2A00
Raw code: 2A00
ECU: Engine control unit
Status: Validated fault present at time of request, Validated fault has been present during this drive cycle
OBDII: Heated oxygen sensor (HO2S) 1, bank 1 - circuit range/performance

============4==============
P0850
Raw code: 0850
ECU: Engine control unit
Status: Validated fault has been present during this drive cycle
OBDII: Park/neutral position (PNP) switch - input circuit malfunction
Infiniti: Park / Neutral Switch Input Circuit

 

The PNP switch is a pretty easy fix, screws into the side of the transmission.

P2A00 can be a few things but most commonly it's a vacuum leak.

 

You should inspect the PNP switch before just replacing it, it should be the one at the rear of the transmission on the passenger/right side I think.

 

@cleric670 Thank you!. I will start looking at this. Is there a video or instruction that you are aware I can use to poke around ? Also about the vaccum leak, is there a way to narrow that down by ourselves ? or should I take it to a mechanic ?

 

I'd just try to spin the various vacuum lines by hand. If you can twist them they are leaking. Also remove and inspect the intake pipe for any cracks/tears/etc. Typically they happen at the corrugated flexible part.

 

Thank you!. Will try these out.