Originally Posted by ihategp
i removed all the wires out of the harness that went through the firewall only left what was needed for the sensors and such. any flywheel for a 4.0 should work. looking on napa's site the part numbers are the same from 91 to 99. as far as the data link i have yet to wire mine in. but from the grey connector on the ecu it should look like this
data link- ecu
7 pink -c27
11 wht/blk- c28
6 lt grn -c29
3 vio/brw -c30
4 blk just ground anywhere
5 blk/lt blue also gorund
16 tan/blk fused power
like i said i have not wired mine in just going off the diagrahm i have.
if you are going to use the hesco cps kit then you should not need to change the flywheel just use the one from you 258. i over thought the whole wiring and really didnt need to was much easier then what i thought it would be. doing this swap made it seem like a whole new jeep went from 10mpg on freeway to getting 18mpg
Im have the OBD2 set up to , it came of my xj 97 i have every thing i need but i just not to sure which way and what to connect,
here is a link on how far i am, check my signature links.
im in desprate state cant get the jeep to turn over
all my wiring is ready and labeled both xj and yj.