2006 Dodge Caravan 3.8L 87k
so you have injector problem and crank sensor problem,
crank sensor this will make it hard to start, and black smoke and smell of fuel would be the injector staying open. have you checked the earth condition on the sensor plugs, there is a earth wire on each sensor, you will need to check them with a meter, if the garage has checked the sensors and said they are fine that is were i would be looking. dont under stand changing the pcm without doing this test first, if earth is fine then i would start checking the other sensor wire, you will need the ecu layout of the plug. and find the wire code for the sensors and check the sensor end to the ecu end and make sure they have a good feed. if you find a problem you will need to re wire and cut the old connections and fit the new wire/s to the wiring, or if you have a lot of luck you may find the brake in the wire, most common is any where its hot and also when the wiring connections are they look like blocks, these blocks can sometimes let water in and corrode the connections, clean them and replace the seal on the plug. hope this helps.
2006 Dodge Grand...
on Jul 13, 2017