Taylor TJR
New Member
Solved!
I had CPS issues for about 8 months. I pinched my transmission harness doing a tummy tuck — shorting the power wire for the CPS and other sensors. After fixing the harness, replacing the OPDA and CPS (w/ a Mopar unit) I was still getting the P0340 on cold starts. No issues on warm days or cold days after the engine was warmed up.
To fix this, you need to increase the distance between the timing wheel in the OPDA and the magnetic end of the CPS.
To remedy the issue, I reused one of the washers from the crown OPDA plastic cap (maybe 1/32" thick) and placed it between the OPDA and CPS, where the fastener attaches the CPS to the OPDA. This creates a slightly larger distance (I've seen some call it an air gap on a few forums) between the timing wheel in the OPDA and the end of the CPS. Now the TJ cold starts with no codes — problem solved.
I had CPS issues for about 8 months. I pinched my transmission harness doing a tummy tuck — shorting the power wire for the CPS and other sensors. After fixing the harness, replacing the OPDA and CPS (w/ a Mopar unit) I was still getting the P0340 on cold starts. No issues on warm days or cold days after the engine was warmed up.
To fix this, you need to increase the distance between the timing wheel in the OPDA and the magnetic end of the CPS.
To remedy the issue, I reused one of the washers from the crown OPDA plastic cap (maybe 1/32" thick) and placed it between the OPDA and CPS, where the fastener attaches the CPS to the OPDA. This creates a slightly larger distance (I've seen some call it an air gap on a few forums) between the timing wheel in the OPDA and the end of the CPS. Now the TJ cold starts with no codes — problem solved.