Friends

my friend car is having same problem with 2004 AT .... check the video out


now we checked the Cat .. its ok as we replaced it also with a good one.
checked also the O2 sensor also .. replaced with new .. problem remains same.

Coils & Wire are Brand New ..

Can This Be Cause By Knock Senor ??

 

get the code read and report back. clean maf and ess. did you replace the plugs with the coils and wires?

 

@200,mph

yes changed the coils, plugs & wire .. its same (even tryed the old one again with differnt combination with new .. same ..
secondly no codes ... no error ..

cleaned MAF also .. same issue ..

 

clean ess and do the 20 brake stomp. just taking some guesses. the code would be helpful tho.

 

any other help ?/

 

there's nothing wrong with it,
Somewhere on the forum you will find they reprogrammed the ECU because of idiots who REV their engine to high in neutral

You hit the limiter.