I am in desperate need of anyone's help. My 2002 dodge grand caravan sport 3.3l v6 flex fuel, has been giving me hell. For about 3 weeks now it has been stalling on me and shutting off. I took it to auto zone and some codes came up, p1294, p0204 and another one i cant remenber. So far I have replaced the cam shaft sensor, crank shaft sensor, throttle position sensor, idle air position sensor, fuel injector #4, fix a vacuum leak and gave the throttle body a good scrub. Everything was ok until the problem started again same codes p1294 and p0204. Also my idle is all over the place and I can't seem to solve the RPM problem. When in park it's at 900, when in drive drops to 700 or 800and if I turn the AC on it drops to 300-400 the engine does a funny noice and then turns off. I have no problem turning it back on after that. Also when it turns off while driving is usually when I get of the highway or come to a stop on a red light or stop sign. Again no problem starting back up but will happen again if I come to a stop. If I put the engine in neutral and kind of two footed before I come to the stop is the only way to keep it from turning off.
Please help with what ever you can, Maybe I forgot something or you might know something I don't. Every opinion or advice is very appreciated.
Thank you!!!

 

1294 is just telling you that your idle speed is not matching the targeted idle speed, which you can obviously tell from your description of how the idle changes. P0204 is most likely the key to the problem: "Injector #4 output driver not responding properly to the control signal". If I recall correctly, number 4 should be the middle injector on the front of the engine. Could be a leaky injector. However, do a search on the boards for problems with a melted fuel injector harness. I seem to recall seeing that frequently enough that it may be what is going on with your van: melted harness allowing shorts to occur, especially under increasing voltage, i.e., load.

EDIT: well I feel like a buffoon! Had come across this thread while searching for something else, but failed to look at the date before responding.