When I am cruising through a parking lot at a very slow idle speed and I gas it just a little, the burbs jerks back and forth almost like a manual transmission when you have left the clutch out too early. I have noticed it does it sometimes when I am on the highway and let off the gas it sometimes jerks a little. Doesn't do it if you pull out normally. Only seems to happen when you are just slightly on the gas. I have put in new injectors and TPS but it existed before that. Cap, distributor, wires plugs are all fairly new.

 

I have been reading a lot of posts that this might be related to a faulty EGR valve or solenoid. Has anyone had any success with fixing this problem by replacing one of those two items? I really hate just buying parts to troubleshoot. Is it possible to give it a good cleaning? How would I clean it?

 

Update: I disconnected the EGR valve and plugged the vacuum line and problem solved! So now just need to replace the EGR valve.