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Quick ASV question...
Posted 02 May 2005 - 04:04 PM
Posted 03 May 2005 - 03:40 PM
Posted 03 May 2005 - 04:25 PM
Posted 03 May 2005 - 04:26 PM
I disabled my ASV a while back because I thought it might be causing some problems I was having. Thing is, mine was on the passenger side, not drivers, and doesn't appear to have the black plastic silencer thing that melts when things go haywire. Whereas on my OTHER '83 wagon that is now a parts car, the ASV was on the drivers side and did have the plastic part that melted, but that was a long time ago, long before I stumbled across this board.
Anyway . . . I have the same question SuBrat84 does. The wagon is running crappy again, and some of the posts lately make me start to wonder if I've melted my cat. I still have pulses at the tailpipe, but I can hear the cat popping and cracking as it cools when I shut the engine down. I don't recall hearing that to the same degree as I do now.
Posted 03 May 2005 - 05:28 PM
Supplimental air in a nonfeedback system should only help insure excess O2 in the gas feedstock to the cat so that oxidation can take place. This oxidation will INCREASE the temp of the catcon, so lack of supp-air should tend to keep the catcon temp lower.
It is still possible that your catcons are plugged... I have seen some bad cases where the engine burned some oil and the residue plugged the honeycomb. But plinking and clinking from catcons is pretty common, and is often the heatshield expanding/contracting at a different rate than the body of the catcon.
My 2 cents.
Posted 03 May 2005 - 08:04 PM
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