Several codes/no throttle response?

Tiny
BHAMDOC1973
  • MEMBER
  • 2012 DODGE CHARGER
  • V8
  • 2WD
  • AUTOMATIC
  • 85,000 MILES
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.
Monday, July 25th, 2022 AT 2:18 PM

11 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,512 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.

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Tuesday, July 26th, 2022 AT 11:19 AM
Tiny
BHAMDOC1973
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Scanned it, deleted codes and rescanned and got.
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Tuesday, July 26th, 2022 AT 1:29 PM
Tiny
BHAMDOC1973
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  • 1,553 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.
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Wednesday, July 27th, 2022 AT 12:17 PM
Tiny
KEN L
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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.
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Thursday, July 28th, 2022 AT 10:02 AM
Tiny
BHAMDOC1973
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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.
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Thursday, July 28th, 2022 AT 10:03 AM
Tiny
KEN L
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Yep, that was my next suggestion have you replaced it yet?
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Friday, July 29th, 2022 AT 9:32 AM
Tiny
BHAMDOC1973
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  • 1,553 POSTS
Ordered an OEM one still waiting. Many reported issues with aftermarket.
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Friday, July 29th, 2022 AT 9:35 AM
Tiny
KEN L
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Okay, I have seen that too, let me know.
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Saturday, July 30th, 2022 AT 12:39 PM
Tiny
BHAMDOC1973
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Replaced CPS, all good, unreal what these sensors can do.
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Monday, August 1st, 2022 AT 4:56 PM
Tiny
BHAMDOC1973
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  • 1,553 POSTS
But the sensor had oil on it, is that normal?
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Monday, August 1st, 2022 AT 7:14 PM
Tiny
KEN L
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Yes, that is normal, it is amazing how these Sensors computerized car work, we are learning something new all the time.
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Wednesday, August 3rd, 2022 AT 10:25 AM

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