Check Engine Code P2A00
 

I had my car inspected two days ago and after I picked it up the check engine light came on. I have FI CBE, HFC, and K&N drop ins. These mods were installed over three months ago and I've driven roughly 6K miles without the engine code. Any ideas? I would think that an exhaust leak would have triggered the code long ago. During the installation process, I had to remove the passenger side header to remove one of the stock cats. It was tightened to spec however during reinstallation and a new gasket was used. I did notice that the car has seemed intermittently sluggish with acceleration for the last few weeks.

Any suggestions would be appreciated. Should I be driving the car?

Wish I knew the answer. I've had this code for over a year now. All stock nismo exhaust. Nissan replaced my O2 sensor 3 times, then my ECU, and I still have the code.

Thanks for the post. Have you noticed any change in performance?

Clean ur mafs and reset the light make sure u clean them the proper way with the proper solution

what do you use to clean mafs?

MAF cleaner, LOL
It's $5-6 at any auto parts store

Hmm. ...it could also be the fact that your car is leaning or riching out. My z is throwing P2a00 and P2a03. Bank 1 sensor 1 and bank 2 sensor 1....also misfire. So its time for a tune for me in the near future.

so i attempted to program my 2013 370z ecu with hypertech. it started programming it but it never finished. and it keeps saying it couldnt read ecu. called hypertech and they said the unit is not made for 2013 and would only work for up to 2011s and that they havnt come out with a tuner for 2013s. now my engine is making this weird noise when ignition is put to "on" the noise sounds like a fan is on. or like when your laptop is loading a cd. something like that. and to make everything fun the car would not start. any input on this? im thinking hypertech messed up my computer? prolly needs to get reflashed by nissan??

I haven't had a chance to clean my MAF sensor. But I noticed this code only pops up when it's cold.

You know that if the weather outside is to cold the car will notice this and throw a light due to the to low of temp. Just some insider tip

I do now.