Originally Posted by 04RangerDave
Check IAC then check your EGR also the big vacuum line behind your throttle body. one of your cats could be plugged up. any exhaust leaks or smells under the hood when its running?
Replaced the IAC and the DFPE a few months ago. How do I check the EGR, just unplug the DFPE, correct? I checked the vacuum lines and they all seem ok. No exhaust leaks that I know of or smells. A clogged cat would cause all my symptoms I'm assuming. No code though, but like someone posted before it may not throw one until the very end. Is there a way of checking the cat besides for waiting till it gets cherry red.
I'm about to take it to a garage and have my wallet emptied by them. Symptoms been going on for 4 months now off and on.