Greetings all,
Last night, I jumped in my van to leave a restaurant. As soon as I started to pull away I knew something was wrong. The engine was sputtering and didn't have much power under load. It ran enough at high RPM to limp it home, but I drove in 3rd gear (5 spd).
I pulled over and swapped in my aftermarket HEP I had for years in the glove box, no change. I figured maybe the coil was getting weak. I swapped in a different coil, same problem. But today the van wouldn't start at one point after swapping back in the original Mopar HEP. So back in went the aftermarket one and it started right up, still behaving this way. Basically, the engine will stall or almost stall and come back on. The tach drops down to 1,000 or sometimes to 0 while under load. Does it at idle and while driving now. I also pulled code 3....

I have a video of it running, but I don't know how to share it here....