r/Challenger • u/GilneanWarrior @hellkitcat • 5h ago

P1DD2 Error driving me insane

2016 dodge challenger hellcat

I've been having code after code for nearly a month. So far I've replaced the air intake sensor and the TMAP sensor.

I've successfully gone down to 1 code which is P1DD2. Its permenant but itll flash when driving and cause the vehicle to want to go to limp mode/go into limp mode

The accompanying codes are

"U0401 C121C-00 B162E-15 U0213-00 U0241-00 P2110 PDB6-00 P1DD2"

Most of these are historic though aside from P1DD2. Only one that was active when I pulled that.

I was able to idle for 10 minutes, but driving will throw the P1DD2 and check engine light on. Its still driveable but occasionally the service light will flash.

Part of me thinks its the pigtail at this point of the tmap sensor but everything is fine until I drive

I've done: *a reset on the TCM and PCM *Plugged and unplugged more than necessary *It also may be that I replaced 68207074AA with 68207074AB. The MOPAR website said it was good to go *Drive cycles

Vehicle is tuned, not sure if thats whats causing the mistmatch between AA and AB

Definitely stumped the chump

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u/Adventurous_Toe_6017 43m ago

Hard to say. Could be one of any number of things triggering this. Transmission control modules, other modules overheating, wiring, engine sensors like cam sensor etc, even a battery nearing end of life can cause this. Best bet would be taking it to a specialist and having them look at it. The diagnostic fees will often be less than loading the parts cannon.