P0201 Injector Circuit Malfunction - Cylinder 1
301 is a misfire in cylinder 1
Disregard 1684. That just means the battery was disconnected within the last 50 starts.
Chrysler has very little trouble with their injectors so look for a wiring problem first. The most common things are a break in one of the wires or a stretched terminal in the connector, but given the additional flashing Check Engine light, you might suspect an injector staying on instead of pulsing. That would not be common. Smell the exhaust. If it smells like unburned gas, unplug injector number one and see if the smell stops.
If the injector is sticking due to varnish buildup, you can find that by monitoring the fuel pressure right after you stop the engine. It will bleed down very quickly. That pressure should hold for weeks. If the injector does seem to be the cause, switch it with one from a different cylinder. You should get a new fault code for a misfire in that cylinder.
Thursday, December 6th, 2012 AT 10:11 AM