4.2 to 4.0 head swap plus obd2

Swaping 258 to 4.0, 4.0 parts to 258 etc!
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Quarterpastgone
Posts: 1
Joined: June 6th, 2015, 5:12 pm
Vehicle Year: 1988
Vehicle Make: Jeep
Vehicle Model: Wrangler

4.2 to 4.0 head swap plus obd2

Post by Quarterpastgone »

Has any one else done this? I have got my jeep running on the 1998 4.0 ecm, but I am having a rough idle and it will not find a steady idle. will randomly cut off. I have searched and found lots of obd1 info not a lot for obd2. All help is welcome.

Thanks Quarter
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