I have a 2004 neon 2.0 auto I just put a new cat converter in and both o2 sensors. drove the car and now I get a dead pedal every once in a while??? I hit the gas and it boggs down it never did this before. I keep pumping the gas pedal it comes back and drives off great no codes are thrown.

 

bump for help

 

dead pedal after only the 02 & cat r&r? Did you try a few pcm resets pulling the fuel pump fuse

 

yes still nothing, although my air temp sensor on the air box was disconnected and reading 29 degrees and I placed it back in the air box and after resetting the obd 2 several times it was running great then after about 30 minutes or so parked it and my wife drove it and she said it is doing the same thing again.. I guess I will try an air temp sender for the heck of it maybe the one I have is now bad from being disconnected and getting dirt and rain on the tip of the sensor.

 

ok that wasn't it. took off the iac and cleaned it out not it what the heck???

 

new plugs installed it runs better but not right yet. going to try wires and then the throttle position sensor if need be.

 

Take off your CAMSHAFT sensor on the transmission side of the head and check if the silicone seal on the outside of the sensor is not clear and see through, if it's brown/yellow the sensor with not pick up timing right and you will lose correct timed ignition.

 

thanks for the advise but I changed it out about 1 week ago it was leaking oil. but I will say I would not of thought of that thanks. when I put the new plugs in it ran great for a day I of course moved the plug wires so I will do that when I get a chance and I did tap on the throttle position sensor so that will be my last piece I guess.

 

my 97 ram was acting similar to that, replaced the tps sensor and the prob went away

 

try unpluging the tps and see if it still does it