Ok so I recently had my 1998 jeep grand cherokee 4.0 rebuilt. Now it is running but once you drive it for a lil while the check engine light comes on and gives an upstream o2 sensor code. But when hooked to a scan tool both o2 sensors are going crazy. We checked the timing at the distibutor and it shows to be about a tooth out but if you put it were it is suspoded to be it wont run. The scan tool says it is firing at 14-17 degrees before top dead center at idle. Can anyone tell me what it is suspoded to fire at.
|Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)|
|Thread||Thread Starter||Jeep Forums||Replies||Last Post|
|ZJ 5.2 timing (need help) !!!!!!!!!!!!||johncsmith711||ZJ Grand Cherokee Forum||4||03-05-2011 11:21 PM|
|timing ?||jim75||ZJ Grand Cherokee Forum||2||01-18-2009 08:13 AM|
|timing ???||sdr93||ZJ Grand Cherokee Forum||3||12-11-2005 06:44 AM|
|Timing||Raven||ZJ Grand Cherokee Forum||1||11-17-2004 08:59 AM|
|98 4.0 Timing||smiley||ZJ Grand Cherokee Forum||2||11-20-2003 02:52 PM|