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New map and no results

Boneless-Jeeper

NAXJA Forum User
Location
Arlington,WA
PROBLEM=Likes to stutter and spit at low rpm around idle to a grand and cuts out under hard or partial throttle when accelerating ,also it will randomly die then not start then after u turn it over a few times itl start right up and act like it never happend
ATTEMPTED FIX
jeep is throwing MAP sensor code I got a junkyard one that looked to be ok for 5 bucks and still had the same problem and it says in my haynes manual if that doesnt fix take it in for dealer service ,and well I dont have that kinda money so any insight on this guys could it actually be another sensor causing this like the ckp or iac ?


'91 cherokee
'01 4.0L
5-speed
250K
(jeep still had problem with old motor )
 
Last edited:
Test the MAP sensor, if good test the harness to the PCM.
 
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