Quote:
Originally Posted by Brian Carlton
My guess is that you lost the speed reference for both the tach and the computer idle control. Without the speed reference, the idle falls to a low value and the engine runs rougher.
It's either the sending unit or the computer itself (less likely).
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Any idea where the sending unit is located? 
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1986 190D, 2.5L, 5-speed swap, 180,000 Miles (60K by me).
Jeep CJ-7 with Cummins 4BT/NV4500/AtlastII 4.3.
Grand Wagoneer 4BT project in progress!
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