Egr On 1991 Corrolla

by Anton, March 9, 2007 in Pre-1997 Toyota Corolla and Geo Prizm

I have had a persistent CEL on this 91 Corolla. The code flashes 71.

I had the EGR valve cleaned out, and the EGR Vacuum Mod. filter cleaned. The Code cleared, and all was fine. But when Engine reached Higher operating speeds... The CEL was back. I checked the continuity of the VSV for the EGR, and it was in spec. I don't have a vacuum guage, so I didn't do some of the other tests suggested by the repair manual.

The short hose that connects the EGR valve to the VSV seemed suspect, so that will be replaced next.

Any other ideas as to what could make this problem go away?

thanks

Anybody out there, or is this corolla too dated?

Should I have posted in Performance?

Anton,

I believe the valve is the same as the one on my 1995 Corolla. Mine failed and I used a 1989 Celica valve as a replacement....$5 at the junkyard. Apparently they have different numbers but are the same part.

You can see the entire discussion here:

https://www.corolland.com/forums/index.php?...l=egr+modulator

The Ebay link shows a picture.

Good luck,

Jay

Anybody out there, or is this corolla too dated?
Should I have posted in Performance?

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