Originally Posted by romeshs1983
We'll I cleaned the EGR valve. Put it on without the spring in the diaphragm first. Started stuttering n missing like crazy. Put it back on n now seems ok. I mean same as before. I have noticed that the car is kinda rough at idle. Prior to and after EGR cleaning..
Rough idling as well? Jeez so many possibilities. Roll your sleeves up and go ahead and start cleaning your TB and MAF sensor. PCV valve may be a good idea to replace as it is fairly cheap and cut be causing air circulation chokeholds. When is the last time you replaced the wires and plugs? And is it sputtering at idle or when you drive it does it misfire. Could also be an incredibly clogged fuel filter as stated before. May want to try seafoaming your vacuum system to clean out all of your hoses and things like that. List of what I would do goes in this order
Plugs and wires
Clean tb and maf
Exhaust gas recirculating valve would not cause that significant of problems.
Replace 02 sensors.
And then end by seafoaming your crankcase and vacuum lines
Change oil 500 miles after seafoaming crankcase
This entire list can be done in about 5 hours and 200 dollars later, and it is all incredibly worth it. I cannot stress enough how much maintenance like this contributes to saving a cars life. Most expensive thing would be the wires..