When AC or defroster is activated the electric condenser fan doesn't come on and I get a check engine light and the fault code is p0481 (fan control circuit II)The fan works when I hot wire it to battery.
I put an engine in my ram1500. It came out of a 98 dodge Dakota I installed all new sensors. I have a no crank no start condition now. I need to bypass the anti-theft immobilizer.
If you have a no crank no start condition after installing a new engine, there could be a number of issues to consider. One of the most common issues is an incorrect installation of the engine sensors or wiring, which can cause the anti-theft immobilizer to prevent the engine from starting. You may need to check the connections and wiring for the engine sensors to ensure that they are properly installed and functioning. If the connections are good, you may want to consider having the engine computer scanned for trouble codes to see if there are any issues with the sensors or other components that are preventing the engine from starting.
I've already replaced the sensor and it runs fine except ever once in a while it throws the code again and runs like crap causing multiple misfires, stalls, won't shift into 5th gear. Then after a few days it goes away and everything is fine again. Wtf????