Highmiles
NAXJA Forum User
- Location
- New Hampshire
I have a '99 and I just finished installing an APN header and Dynomax cat back (and Brown Dog motor mounts) this weekend. I've just started the XJ for testing and have an extremely high idle - 5,000 - 6,000 RPM, like I was flooring the gas except my foot is off the pedal. It'll run at 5K, but I get worried and shut it down after 20 seconds or so.
I've checked the throttle lines and return spring and everything apprears correct. The butterfly in the throttle body remains closed. All my sensor connections and vaccuum lines have been reconnected and are snug.
I followed Go-Jeep's instructions and the FSM - the install went without a hitch (did not need to clearance #6 intake as others had to). Only modification was to use a FelPro gasket instead of the APN one.
Everything ran normally before the install - just had to fix exhaust manifold crack and figured to replace the exhaust and motor mounts while I was in there.
Any suggestions are appreciated.
I've checked the throttle lines and return spring and everything apprears correct. The butterfly in the throttle body remains closed. All my sensor connections and vaccuum lines have been reconnected and are snug.
I followed Go-Jeep's instructions and the FSM - the install went without a hitch (did not need to clearance #6 intake as others had to). Only modification was to use a FelPro gasket instead of the APN one.
Everything ran normally before the install - just had to fix exhaust manifold crack and figured to replace the exhaust and motor mounts while I was in there.
Any suggestions are appreciated.