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so my 1992 XJ with 4.0l auto trans is wanting to stall at stops & then revs up (1500rpm) then smooths back out only to repeat. we have replaced: air & fuel filters, cleaned throttle body, replaced idle control valve, throttle position sensor & map/bapp sensor with no change. Ideas?

  • Disconnect the battery for a few minutes, this will clear idle strategies, restart and let idle on its own undisturbed for 15 minutes so it can re-learn. See if this helps. – Moab Apr 8 '18 at 16:29
  • well did that with no change @Moab any other ideas? – Patrick McCarthy Apr 9 '18 at 20:14
  • Any codes in the computer? – Moab Apr 9 '18 at 20:26
  • its a '92, what do i need to read the codes? – Patrick McCarthy Apr 9 '18 at 20:54
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    Well it was the ECM after all, jeep is back! Thanks for the ideas & help! – Patrick McCarthy Apr 16 '18 at 23:54

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