Hi guys, my car pulling out the code : p2135 after throttle body replaced, already tried everything i can do learned online like doing throttle position learning, reset ECU.. nothing works.. it just came on again shortly...
What's the problem and hou much it's gonna be if I take to a local shop to have it fixed?

Really need some help,,gonna be mad..Thank you in advance for any inputs!

And since I just changed tb, so I think no need to clean it....I just cant understand where's the problem....

As much as I dislike the dealerships, have you tried your local nissan/infiniti dealership?

Thank you for your reply buddy,,
no..dealership=big money
I am short on cash and wanna try every method before taking to a dealership..

Are you sure you did the relearn procedure correctly? It took me about 50 times to get it working.

You said your TB was replaced? Where did you get it at? Maybe you got a faulty unit to begin with?

Oh yea I think I have read a few places the gas pedal might cause it as well.

Thank you for the inputs. I don know..Im not sure,,is there any sign if relearn procedure done correctly?

I bought if from Amazon..And it's the same brand same product if I buy from autozone..So I thought it's good..

Did you see all the required engine lights flash? Also, I think on the steps listed here there is one step that wasn't included. I think it was stop and restart the car immediately after you notice the idle drops or it won't keep the setting.

Hmm, I don't know I would go for new or used OEM products especially when it comes to thinks like sensor or throttle bodies.

Thank you for your ideas..will try sometime..

I believe P2135 can also be the Accelerator Pedal Position Sensor. Does your car run and drive? Are the SLIP lights and VDC lights also on?

My Pedal Position Sensor went while I was driving. The car would still drive, but it would accelerate very slowly and not rev past maybe 2000 RPM's.

^^^ this is a very real posibility

what are your symptoms?

TB errors generally won't idle right...they will idle high (Normaly is 650-700 rpms)

Noticeable w/ bad TB is that the idle will bounce after you let off the gas/decelerate but will still rev somewhat normal otherwise

If your car just feels like its in limp mode(accelerates very slowly) its more likely to be the gas pedal sensor

Thank you for your idea
yeah.. the symptom is my rpm is a little bit higher than nomal, a bit above 1000, the gas pedal sensor seems working fine since it speed up just like before..
I didnt have this code before..came after replacing an aftermaket tb
what i gonna do now?

I dont think we have the same prob since the car seems to accelerate well and it past 2000 easily..

when i press gas, it speed up just like normal, but after I release it, thr rpm will go down to 800/900 and suddenly go up like 1200-1300..and the rpm will keep above that

I had the same problem. I changed my TB twice and it didn't fix the problem.
The problem was with the hose, specifically after the air filter. Check all the hoses after the air filter is in good condition and tightly secure all the clamps

Don't forget to go through a TB relearn process.

If this doesn´t fix your problem,
1. Check for any corrosion in the TB connector female ports. Clean it with a proper electric connection cleaner.

2. Check your battery power and alternator.