Problems after Long Tube Install...

[5ohMustang]

Last week I installed MAC Long Tubes and a Prochamber. The car has been running rough as I didn't have the 02 sensor extensions. The extensions arrived today and I'm still having the same problems. The car idles fun, but when in gear, it just dies unless I leave my foot on the gas. The check engine light won't go off either. Everything was properly reconnected. Any ideas as to what might be the problem?
Thanks,
Brian

 

[MavericK5L]

My guess would be the O2 sensor

 

[Fastime331]

My guess would be the O2 sensor

Yes, that or for some VERY odd reason a vaccum line was unplugged.

 

[89MustangGX]

I'd reset the computer again, if you didn't after fixing the O2 sensors, you may still have the computer confused.

 

[5ohMustang]

Oddly enough, my g/f (who is clueless about cars) happened to mention resetting the computer and I realized I hadn't done that yet, so I did it a little while ago. Car still occassionally dies when I come to a stop when in gear, not quite as often though. Check engine light is also still on. Will drive it around a bit tomorrow and see how she is.

 

[Hydrocarbon]

Light on = Pull codes

At least you'll have some idea what is wrong.