Why does my 2012 Dodge caravan shut off after a few feet and then check engine light comes on

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Valve timing may be off. Check timing marks. Also check transmission fluid level.

Bank 2 is the front of the engine ( closest side to the grill) and sensor 2 is after the catalytic converter.

Your best bet would be take it to a auto parts store and have them hook up thier diagnostic tool to see what code is stored ! Or a qulified repair shop ! Could be hundreds of possiblities !

You seem to have changed a lot of parts in an attempt to cure.

Important to start with a code read to provide clues to the cause of the fault. Fault codes aren't always accurate alone and live data and freeze frame data should be used in combination.

It is best practice to then, instead of jumping in feet first, verify the routine maintenance is up to date and competently carried out and carry out a thorough visual inspection.
This is before any repairs are begun and then any stored faults are erased from the memory and then carry out a roadtest if the fault isn't apparent or if it is carry out a new code read and begin repairs or replacements of faulty item(s).

It should be borne in mind if a fault code indicates a faulty sensor it doesn't mean the sensor is faulty. What it does mean is the sensor COULD be faulty but it could equally be the wiring, connections or even the ecu.

You need to get the cheapest code reader at an auto parts store to shut off the light. You'll need to fix the reason for the light coming on or the light will come back on.

The check engine light comes on when there is a fault or failure of a component within one of the systems.It will need to be checked for a fault then a diagnostic procedure routine will need to be done to determine the cause of the fault.If that check engine light is flashing while driving STOP and have it towed to the nearest shop,preferably a Chrysler dealer as they have the highest trained techs to correctly diagnose issues on any Chrysler product.

Do not shut off the Van and check the lights.... Did you have your Transmission serviced lately? Common problem with this transmission.

Your problem could quite possibly be an internal issue with PCM/ECU

Transmission shop time. Don't trust it by driving, could leave you stranded.

If you have fixed the reason the light came on then it will shut off after 3 good consecutive drive cycles.