The surging idle could be low idle speed due to carbon build up on/in the throttle plate/pcv system, or a stuckopen EGR
Second on the EGR. Second on the Airflow. Check the idle air controller.
EGR valve (whatever that is)
Exaust Gas Return
Once plugged up with carbon deposits it can certainly cause poor idling and surging.
Another itme to check out is the oxygen sensor, they give vital information to the computer. When they aren't functioning they can cause many of the symptoms you describe.
Just out of curiosity what did that mechanic charge you for the stated repairs?
Thanks, guys.
EGR valve (whatever that is)
Exaust Gas Return
Once plugged up with carbon deposits it can certainly cause poor idling and surging.
Another itme to check out is the oxygen sensor, they give vital information to the computer. When they aren't functioning they can cause many of the symptoms you describe.
Just out of curiosity what did that mechanic charge you for the stated repairs?
$139 and change so far. Not terrible, IMO.
The EGR valve is just a politically correct crankcase breather.
Yep part of the whole emissions control system.
We would do the same thing with EGRs on 22R toyota motors too.
Actually there is alot of crap you can remove due to emissionss control stuff.
My idea of a good emissions control system is called a turbo