p2a03 CEL code
 

Hi guys,

I'm getting a p2a03 CEL code. After some brief searching it might be a faulty sensor or a crack in my exhaust system somewhere. I have berk HFC and a tomei cat back.

Was wondering if anyone else has experienced this in their 370z.

http://imgur.com/rB2TJ5U.jpg

Bad piping? Berk tech, i think some members had this prob.

Jack her up, n check for leaks. How long have u had it on?


Wait wait, its sensor #1 i just noticed, bad fuel....fuel pump could be goin, dirty intake filters, bad spark plugs.....this comes to mind.

Bank 2 are the sensors on the headers right?

I did try and clean my air flow meter with AFM spray less than a week ago...

Edit: found out im missing one of the bolts that connect the HFC to the Y-pipe. But it doesn't explain why the sensor on the headers are going off....

Yes those are the ones that see a/f ratio right after the engine, get that bolt fixed, and clear the code, drive for 10-15 min, dont floor it, restart car and see if it comes back.

i get this plus p2a00 code. i gotta get up under the car and chk my HFCs. maybe my gaskets leaking... thats what my assumptions are. using vibrant 2.5 gaskets. ( f.i. HFCs , ARK CBE)

Hate this code
 

I had the same code. Turned out to be a Intake leaks for me.

Fixed the bolt issue and then cleared the code. Fast track to now the CEL has come on again. I would of thought it would of came on during my track day (which was after i cleared the CEL)

Check the code, if its sensor #2 then ur fine its, because of berks u have, if its the same code on sensor 1, u got to look for the problem.