94 ZJ stalls and rough idle - JeepForum.com
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Unread 12-26-2013, 10:04 AM   #1
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1994 ZJ 
Join Date: Dec 2013
Location: St.Cloud, MN
Posts: 1
94 ZJ stalls and rough idle

Ok everyone I'm new to the site and have done a lot of reading online about what seems to be a common issue. I bought a 5.2L, 94 ZJ at auction for 750 bucks! But now it won't idle for **it, It starts fine and will drive great but when I pull up to a light or stop sign it will stall or drop down to 200RPM. The new "problem" is it will idle on start and when you shift to D or R it will instantlly kill. I think its the CPS but want to be sure. I have cleaned the injectors, cleaned throttle body and replaced the IACV. Please help

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Unread 12-26-2013, 10:48 AM   #2
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1993 ZJ 
Join Date: Apr 2013
Location: Cape Coral, FLORIDA
Posts: 1,078
If it only does it in gear it could be transmission related. Torque converter not slipping enough maybe.
zj97ltd is offline   Reply With Quote Quick reply to this message
Unread 12-26-2013, 11:00 AM   #3
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1998 ZJ 
Join Date: Aug 2011
Location: The Abyss, Italy
Posts: 18,823
When my TPS sensor was on it's way out it behaved the same way you are describing but it never actually stalled. When I would stop at a light it would bog down to very low RPM's. On the highway if I gave it throttle to pass it would cut off and bog down as well. I had to lightly give it gas to get it going steady again.
PolkaPower is offline   Reply With Quote Quick reply to this message

rough idle , stalling at stop

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