I had my 14 JKU Re-Geared from 3:21's to 4:11's, Now I have a P0731 code. RPM's @60 are 4000. I'm hoping i need to have pcm re-flashed or did I just throw $1600 away?
P0731 code after re-gearing
- Thread starter Twisted289
- Start date
OP
No, I was thinking he should have. My speedo only seems off by 1 to 2 mph, my rpm's are really high...
Your RPM's on the highway will be higher now with the jump you made in gears, if you put bigger tires on you'll lower the RPM's.
OP
Its supposed to be 2400 rpm @70mph with 33' tires. It's 4000rpm @ 60. Something is not right.
OP
Hooperdog
JK Enthusiast
OP
33" I bought a Superchips Flashpaq F5. Problem solved. As soon as I changed the gear ratio it was back to normal.
OP
Update: I bought a Superchips Flashpaq F5. Problem solved. As soon as I changed the gear ratio it was back to normal.
Hooperdog
JK Enthusiast