Hello.
I read the archives in the past and just now on this valve.
About 2 yrs ago I got a code regarding the purge valve. I cleaned it with wd-40 and it worked. Some 7 mo later, it needed cleaning again and this last time I replaced it because it did not seem to pulse and I was getting a loss of power episodes even after cleaning.
(Last Feb I had replaced the engine wiring harness also.)

So, the new valve from FastLane works fine, however, I still get episodic power loss.

Symptom: The engine does not gain full accelaration power, most notable uphill.
With the engine off, I open the gas filler cap and let the pressure out. Afterward, the car resumes normal operation.

This seems to happen on 3 week intervals. The car has about 59K miles and is not used alot.

No CEL or other codes generated.

So, rule out the harness and the regeneration/purge valve.

(actually this symptom ocurred with the old dirtied valve but at replacement time, the valve was not beating. Still no CEL reaction.- dash bulbs work BTW).

Thanks

Any ideas about this problem?

__________________
1979 300D 220 K miles
1995 C280 109 K miles
1992 Cadillac Eldorado Touring Coupe 57K miles SOLD
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1979 240D 140Kmiles (bought for parents) *SOLD.
SAN FRANCISCO/(*San Diego)
1989 300SE 148 K miles *SOLD