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High idle and stalling issues

buzxj

NAXJA Forum User
Location
columbus, ohio
My 90 xj with 4.0 standard trans. 173,000 mi. has been a project for a year now, so it has not been driven in a long time. It has always started up right away and run very well. Now all of a sudden it will be idling fine and the rpms will raise to around 1500-1750 then it eventually stalls and will not startup. The next day it will start back up fine then do the same thing again. Anybody have a good place for me to start troubleshooting. Thanks, Buz
 
My first thought is the CPS. When it dies I would check for spark. If you have spark try (With the engine off) unplugging the TPS and restarting.
 
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