I have a 2002 Dodge Grand Caravan SE 3.3lt 2WD. I have replaced a series of parts due to a chain…

I have a 2002 Dodge Grand Caravan SE 3.3lt 2WD. I have replaced a series of parts due to a chain reaction of it needs to be replaced. My latest problem happened Thursday when I pushed the gas pedal but could no longer speed up, so pulled to the side of the road with the engine still running but no longer will accelerate. I place the van in park nothing is leaking I have a 3/4 of a tank of gas, engine is still running. I put the van in gear but will not accelerate and will not move. So I then turned the engine off and try to restart the van. It will not fire EVERYTHING else is in working order. It is throwing codes P0509, P0123, P0118, & P1193. My uncle and I replaced crankshaft position sensor and camshaft position sensor. No luck the van will not fire!!! We also ran a series of test and we discovered it's not in the fuel but a problem with the spark!! Any ideas...

I'd start by inspecting the wire harnesses for damage or shorting out. Another possibility is a shorting out sensor, bad ground, or a PCM issue.

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