Question about 1996 Dodge Caravan

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Engine sputters and backfires, the only code is for the modulator...can this be the problem? it's gone into limp-in mode many times and we've bypassed it many times by shutting off the car and restarting it then going on our way til it does it again.now it has not gone into limp-in mode in a long time( 2 weeks ) but now its sputtering and backfiring?

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Yes, it could be the Modulator. Once the ECM starts going into limp mode it causes other problems and bypassing it to continue to drive normally without fixing that problem causes damage to the motor and systems over time. You've probably been running rich on the fuel mixture and may have damaged the O2 Sensors. Replace the modulator and reset the system and that should solve the issues. Problem being if this has caused further damage to other components you will start seeing the codes for those after you replace the modulator.

Posted on Jan 22, 2011

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