Clutch or something else??

MoparMap

VCA National President
VCA Officer
Joined
Jan 7, 2013
Posts
2,460
Reaction score
283
Location
Kansas
You might still try resetting the adaptives on the car and seeing if they still end up at -20. I'm not sure how long it takes the long term trims to update, but if for whatever reason they got there before you ever put the new cats on it could be that they are just going to take a while to get back to normal. I'd rather start from the middle and see which direction it goes than start on the very far end. I don't think the controller can pull any more than 20% either direction, so at the moment it can only adjust one way. I am surprised it doesn't throw a code though as I thought the LTFT being over a certain value set a code.
 

Old School

Enthusiast
Joined
May 14, 2023
Posts
108
Reaction score
56
Location
North Alabama
Couple of things. LTFTs get updated in just a few miles, has to be in closed loop with the engine at operating temp.

LTFT is not just one number, it's a matrix, MAP vs RPM. Here's a snapshot using HP tuners logger:
 

Attachments

  • image (3).png
    image (3).png
    47.4 KB · Views: 6

Members online

Forum statistics

Threads
153,295
Posts
1,682,729
Members
17,813
Latest member
Fastb4ck
Top