Was wondering if anyone might be able to help me with an issue with my '93 Merc Sable (My winter car... my T-birds quitely sleeping over the winter).
The car has a 3.8L engine, AC and Power steering (don't know if all that was important, but the more info the better, I guess
Anyway, the car is getting poor milage, and when I hook up a snap-on scanner, the car consistently pulls code 332, and the code re-appears evertime the code is cleared.
I think that what the code is saying is that there is no vacuum going to the EGR valve. The EGR is good... I've tested it using a vacuum hose and breath power and the car does stall when vacuum is applied to the valve when the car is running so I'm assuming that the valve is opening and closing.
The scanner troubleshooter cartridge leads me to two parts. One is a grey colored sensor? that is mounted close to the EGR valve. There's a vacuum line running from the sensor to the plenum, and an electrical connector going to it.
The other is a black colored solenoid (I think?), mounted a little lower down on the engine. The solonoid has two vacuum lines running to or from it. One I assume is vacuum to the solenoid, and the other line goes directly to the EGR valve. The scanner suggested that I check for power at this solonoid, and is is definitely getting power from the red lead. I'm inclined to go to the dealer and get this solenoid, but I'm not 100% sure that this is what's causing the car to pull this code.
Any thoughts on this?
Thanks for your help!