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Unread 06-26-2012, 01:03 AM   #1
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1998 TJ Wrangler 
Join Date: Jan 2011
Location: fruitvale, british columbia
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1998 4.0 sputter?

i have a 1998 jeep tj wrangler with a 4.0l and it sputters when the motors cold, but when it warms up it stops? i have changed the mapp sensor the catalytic converter the throttle position sensor and the idol position sensor! i need some help! maybe o2 sensors??

rileydeadmarsh is offline   Reply With Quote Quick reply to this message
Unread 06-26-2012, 09:50 AM   #2
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Join Date: Apr 2012
Location: Wilmington, Delaware
Posts: 439
Do you have a check engine light on? Those will come on sometimes with bad O2 sensors, should be a P013x (x depending on what the location is of the O2 sensor). Have you tried pulling codes yourself using the KOEO method?
Mishimoto is offline   Reply With Quote Quick reply to this message

4.0 ho , engine problem , sensor , sputtering , wrangler tj

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