Question about 1997 Jeep Grand Cherokee

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97 jeep grand stalls out and backfires has code po351 already replaced coil and ecm no change could it be the cps working on this for my sister please help thanx

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  • John Runger
    John Runger Jan 12, 2013

    the jeep runs fine most of the time it does this about 2 times a day and always seems to be in the first mile or 2 ???? help

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  • Jeep Master
  • 14,381 Answers

Could be it,here's a link to it.Here's the sensor.

Posted on Jan 05, 2013

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SOURCE: 2004 Jeep Grand Cherokee. Keeps stalling, engine

P0505 means the whole Idle Control system, not only the IAM. Check all related sensors (i.e. crankshaft sensor). Check with a voltmeter direct at the connector of the IAM if you get any signal. Remove the IAM from the TB, connect him, let someone switch your ignition key to ON. The IAM need to drive in/out for a short time to find the right position. Hold the IAM near a hard part, that they cant drive out completely! If IAM works fine, check the fuel pressure, check and clean your TB ( if not done yet). If that doesn't work, come back again please

Posted on Oct 27, 2009

  • 1206 Answers

SOURCE: stalls and backfires 1997 jeep

you need to check the fuel pressure,and did you mean you replaced the distributor or just the rotor because inside the distributor is a pickup plate that some times causes this also 02 sensor can cause this.is your check engine light on if so go to chain auto parts store they usually read your codes for free.

Posted on Nov 26, 2010

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Otherwise check the wiring continuity for the cps and check the signal from the pickup in the distributor. (check all the way to the computer itself. Of course, check all the relays and make sure they are good (most can be interchanged with each other except for ac relay)

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