My 2000 FFV engine has developed a miss under load, at idle, foot on brake and in gear. It is an intermitten miss and ther are no codes what so ever. I have replaced the IAC, CKP and PCV valve. THe car will also have a shuttering miss under medium accleration (like I was driving on rumble strips) for a few seconds and then go away. This car is driving me nuts. I also have had the injectors cleaned and no improvemnet.
What is the possibility of the EGR or DPFE causing a problem like this and not leave a code? Thanks guys