They are not screws they are bolts either 1omm or 13mm
the egr valve is sticking open and causing the motor to surge replace the egr valve and the problem will be solved
95 Chevy impala egr valve removal
Remove the upper intake plenum from the old 95 motor and install it on the 96 motor that you installed in the car. Doing this allows you to use the original EGR valve that came with the 95 Grand am. It's not a big job.
The EGR valve on a 95 Isuzu Rodeo is located on the back top of the engine. It resembles a cylinder.
It needs a new EGR valve.
The Saturn EGR valve is attached to the head, directly above the transmission bell housing.
no they dont. the older ones did.
egr valve is located on right side rear of motor next to distributor
Replace the PCV valve. If that does not cure the problem check the EGR valve.
There is no egr valve on a 95 Honda del sol. I looked all over mine and on the internet, no egr valve. If your emissions are screwed up replace the catalytic converter and have a pro check your timing. Most of the time it is your cat. I am still looking for the answers to bad gas mileage, hard to determine why but many del sols lose that good gas mileage for no apparent reason.
Code 1406 is EGR Valve Pintle Position Circuit Error. As far as your EGR "pintle position" code is concerned. Your EGR valve is sticking or malfunctioning. Remove and CAREFULLY clean the EGR valve shaft and it's passages in the engine and reinstall with a NEW gasket. If this does not resolve the problem, replace the EGR valve.