Check Engine Code P2A00

pulser8 · 10-03-2012, 10:28 AM

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?

takjak2 · 10-03-2012, 01:47 PM

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.

pulser8 · 10-03-2012, 02:13 PM

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

Navyboy916 · 10-03-2012, 03:14 PM

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

Thorazine_IM · 02-19-2013, 02:32 AM

what do you use to clean mafs?

DEpointfive0 · 02-19-2013, 02:35 AM

Quote:

Originally Posted by Thorazine_IM

what do you use to clean mafs?

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

roy'sz · 02-19-2013, 03:34 AM

Quote:

Originally Posted by pulser8

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?

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.

Thorazine_IM · 02-19-2013, 04:34 AM

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??

SPOHN · 02-19-2013, 07:10 AM

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

Navyboy916 · 02-19-2013, 07:43 AM

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

SPOHN · 02-20-2013, 01:18 AM

I do now.

10-03-2012, 10:28 AM	#1 (permalink)
pulser8 Base Member Join Date: Nov 2010 Location: Virginia Posts: 18 Drives: 2010 370z 40th Rep Power: 14	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?

10-03-2012, 01:47 PM	#2 (permalink)
takjak2 A True Z Fanatic Join Date: Feb 2011 Location: Sterling, VA Posts: 1,922 Drives: Legit Racecar 370Z Rep Power: 142	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. __________________ Mods \| Stuff \| Things \| Seat Time \| Nismo facebook.com/TeamSparrowSpeed

02-19-2013, 07:10 AM	#9 (permalink)
SPOHN A True Z Fanatic Join Date: Feb 2010 Location: Covington, GA Age: 45 Posts: 14,844 Drives: Waiting on next Z Rep Power: 221	I haven't had a chance to clean my MAF sensor. But I noticed this code only pops up when it's cold. __________________

02-19-2013, 07:43 AM	#10 (permalink)
Navyboy916 Enthusiast Member Join Date: Jul 2011 Location: Hawaii Posts: 434 Drives: 2010 370z 7AT Rep Power: 13	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 SPOHN likes this.

02-20-2013, 01:18 AM	#11 (permalink)
SPOHN A True Z Fanatic Join Date: Feb 2010 Location: Covington, GA Age: 45 Posts: 14,844 Drives: Waiting on next Z Rep Power: 221	I do now. __________________

10-03-2012, 02:13 PM	#3 (permalink)
pulser8 Base Member Join Date: Nov 2010 Location: Virginia Posts: 18 Drives: 2010 370z 40th Rep Power: 14	Thanks for the post. Have you noticed any change in performance?

10-03-2012, 03:14 PM	#4 (permalink)
Navyboy916 Enthusiast Member Join Date: Jul 2011 Location: Hawaii Posts: 434 Drives: 2010 370z 7AT Rep Power: 13	Clean ur mafs and reset the light make sure u clean them the proper way with the proper solution

02-19-2013, 02:32 AM	#5 (permalink)
Thorazine_IM Base Member Join Date: Aug 2012 Location: CA Posts: 158 Drives: 13 Nissan 370Z PW M6 Rep Power: 12	what do you use to clean mafs?

02-19-2013, 04:34 AM	#8 (permalink)
Thorazine_IM Base Member Join Date: Aug 2012 Location: CA Posts: 158 Drives: 13 Nissan 370Z PW M6 Rep Power: 12	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??

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