Several codes/no throttle response?

2012 DODGE CHARGER
85,000 MILES • V8 • 2WD • AUTOMATIC
Avatar
BHAMDOC1973
  • MEMBER
  • 2,008 POSTS
Bought it as is, takes 3-4 long starts before it fires up. Rough idle, no throttle response.
Has these codes:
P335 Crank position sensor
P642 Sensor ref voltage
P0118 Engine temperature sensor
P2122 Throttle sensor
P2135 Throttle sensor a/b volt correlation

Does not smoke, has enough oil and coolant.

I also may have seen the common code on many US built cars for the oil pressure sensor maybe p0520 if am not mistaken, but i saw that first time i saw the car i think.
Jul 25, 2022 at 2:18 PM
Advertisement
Avatar
STRAILER
  • CERTIFIED EXPERT
  • 53,854 POSTS
Okay, lets clear the codes and then turn the key on without starting the engine and then run the codes, this will give us the hard code that we should start at first, it may have a bad PCM with these kinds of codes, I also would do a CAN scan which is easy, you can get a CAN scanner from Amazon for about $30.00.

Here is a video to show you how:

https://youtu.be/u-4syLc-ifQ

Here is a scanner link:

https://amzn.to/3o41KcZ

I would service throttle body and replace the crankshaft sensor first.

Here is a guide and the crankshaft sensor location in the diagrams below:

https://www.2carpros.com/articles/throttle-actuator-service

Check out the diagrams (below). Please let us know what happens.

Jul 26, 2022 at 11:19 AM
Avatar
BHAMDOC1973
  • MEMBER
  • 2,008 POSTS
Scanned it, deleted codes and rescanned and got.
Jul 26, 2022 at 1:29 PM
Advertisement
Avatar
BHAMDOC1973
  • MEMBER
  • 2,008 POSTS
I am replacing the battery as its struggling. I also used my buddy's throttle body and the idle is much better but throttle light still flashing and still have the same three codes.
Jul 27, 2022 at 12:17 PM
Avatar
BHAMDOC1973
  • MEMBER
  • 2,008 POSTS
Am replacing the battery as its struggling. I also used my buddy's throttle body and the idle is much better but throttle light still flashing and still have the sane 3 codes
Jul 27, 2022 at 12:17 PM
Avatar
STRAILER
  • CERTIFIED EXPERT
  • 53,854 POSTS
Nice work, I would replace the throttle pedal position sensor which is under the dash by the throttle pedal. Here are the instructions in the diagrams below. It says you cannot separate the pedal from the sensor so it must come as one unit. Check out the diagrams (below). Please let us know what happens.

Jul 28, 2022 at 10:02 AM
Avatar
BHAMDOC1973
  • MEMBER
  • 2,008 POSTS
I replaced it still no response from it. Lots of videos show that CPS can create such symptoms, is it possible it is related to that? Because it's the first code that keeps popping up.
Jul 28, 2022 at 10:03 AM
Avatar
STRAILER
  • CERTIFIED EXPERT
  • 53,854 POSTS
Yep, that was my next suggestion have you replaced it yet?



Jul 29, 2022 at 9:32 AM
Avatar
BHAMDOC1973
  • MEMBER
  • 2,008 POSTS
Ordered an OEM one still waiting. Many reported issues with aftermarket.
Jul 29, 2022 at 9:35 AM
Avatar
STRAILER
  • CERTIFIED EXPERT
  • 53,854 POSTS
Okay, I have seen that too, let me know.
Jul 30, 2022 at 12:39 PM
Avatar
BHAMDOC1973
  • MEMBER
  • 2,008 POSTS
Replaced CPS, all good, unreal what these sensors can do.
Aug 1, 2022 at 4:56 PM
Avatar
BHAMDOC1973
  • MEMBER
  • 2,008 POSTS
But the sensor had oil on it, is that normal?
Aug 1, 2022 at 7:14 PM
Avatar
STRAILER
  • CERTIFIED EXPERT
  • 53,854 POSTS
Yes, that is normal, it is amazing how these Sensors computerized car work, we are learning something new all the time.
Aug 3, 2022 at 10:25 AM