The Acura Legend & Acura RL Forum - View Single Post - Failed 'functional' Ca. emission test (EGR) ???

Sean L · 01-27-03, 05:46 PM

Merlin-

I went to Pep Boys today at lunch and bought the Haynes manual as well as a hand operated vacuum pump (w/ gauge).

The egr valve testing procedure in the Haynes book is very straight forward.

I tested the EGR valve after my 1/2 hour freeway ride home, so the car was fully warmed up. I pumped it up to 8" of vacuum, and the engine rpms didn't move, let alone try to stall :-(

The egr valve seems to hold vacuum, so I don't know if it's bad or not???

I guess it's possible that I still have clogged egr ports......
meaning I'll have to dig even deeper and remove the housing in the back of the intake that the egr pipe attachs to. I thought I had cleaned everything out pretty good, but I really don't know how I'm going to clean the egr passages within the intake/heads.

Thanks again for all your advice.

01-27-03, 05:46 PM	#12 (permalink)
Sean L Sr. Member Join Date: Feb 2002 Location: Bay Area, CA Posts: 314 Car 1: '94 Cashmere LS Sedan iTrader: (0)	Merlin- I went to Pep Boys today at lunch and bought the Haynes manual as well as a hand operated vacuum pump (w/ gauge). The egr valve testing procedure in the Haynes book is very straight forward. I tested the EGR valve after my 1/2 hour freeway ride home, so the car was fully warmed up. I pumped it up to 8" of vacuum, and the engine rpms didn't move, let alone try to stall :-( The egr valve seems to hold vacuum, so I don't know if it's bad or not??? I guess it's possible that I still have clogged egr ports...... meaning I'll have to dig even deeper and remove the housing in the back of the intake that the egr pipe attachs to. I thought I had cleaned everything out pretty good, but I really don't know how I'm going to clean the egr passages within the intake/heads. Thanks again for all your advice. __________________ Sean in Norcal '05 Infiniti G35 Coupe '94 Mustang Cobra '94 Legend LS Sedan (SOLD) '97 Lex LS400 Coach Edition http://www.mustangmods.com/data/4358/legendsig2.jpg Last edited by Sean L : 01-27-03 at 10:35 PM.