Emissions

mrnickleye · 04-05-2007, 05:16 AM

The transducer is actually a vacuum modulator. Pg EC-12 in TSRM.

Apply vacuum directly to the EGR valve while idling the engine. (you can use a spare vacuum hose and your mouth).

If valve is good, and passages are clear, the engine will stumble hard, and may die, as you will be creating a big vacuum leak, and diluting the fuel mixture a whole lot.

If engine does not stumble hard, then either the valve is not working, or the passages are plugged (somewhere along the way).

04-05-2007, 05:16 AM	#8
mrnickleye 1000whp postwhore Join Date: Jun 2005 Location: Mojave Desert, Calif. Posts: 1,705	The transducer is actually a vacuum modulator. Pg EC-12 in TSRM. Apply vacuum directly to the EGR valve while idling the engine. (you can use a spare vacuum hose and your mouth). If valve is good, and passages are clear, the engine will stumble hard, and may die, as you will be creating a big vacuum leak, and diluting the fuel mixture a whole lot. If engine does not stumble hard, then either the valve is not working, or the passages are plugged (somewhere along the way). __________________ Had a Red 1989 N/A. Automatic. Sports Pkg. w/wing. TEMS, and some nice MODS. Sold to a friend 10/08/08.