Pulsar XT check engine codes P2122 & P2127

[NHais]

Hey guys. I just installed a Pulsar XT on my 21 Hemi etorque and got the P2122 & P2127 pedal codes every time I restarted the truck. Others have posted with the same problem. After checking everything out, I realized that I had installed the power fuse for the Pulsar in the 10 amp fuse location above FU33, which is FU28. When I moved it to the correct location - FU33, everything worked and no check engine lights. I hope this helps.

 

[MadeInDetroit]

Thank you for posting this. Wish I would've seen this before I installed the Pulsar XT earlier today. I've been going crazy trying to clear the P2122 code. I just switched the fuse into the correct place and waiting for 15 minutes to reset the computer, fingers crossed. FYI, yes that worked codes cleared back in business.