A question about missing

[1 Bad Snake]

I am having a very peculiar problem, at different speeds and RPM's, in different gears, I experience a strong jerking (almost like the car is missing)motion. The problem only occurs once the car has warmed up a litte, and not always at the same temp. This problem causes my RPM's to drop almost to stall and then dart up suddenly, then will drive okay for a couple of minutes and repeat. The problem has baffled an excellent Viper tech and Viper racing team Crew chief. I have replaced plugs, plug wires, Fuel filter, Coil, retuned engine and throttle bodies, replaced fuel injection wiring harness and pcm, O2 sensors, cats with hi flow cats and the engine was rebuilt by Arrow less than two years ago, and has less than 4k since rebuild. All of this has been done over the last 6 weeks, Has anyone had or heard of a similar problem that can offer an avenue to pursue.

 

[SteveBCloud9]

Here are a few thing I've learned on the forum in respect to this issue:

1) Make sure your drivers side throttle cable opens first.
2) You most likely checked for error codes. You may have one in your computer and it's still creating a problem.
3) Disconnect the battery (do #2 first) and reconnect. Let the car re-learn everything once again. It may take up to 50 miles to get the idle to even out.
4) Bad gas will do this too. Your computer may have re-mapped itself based on a bad tank and never really got back to normal.

Good luck.