If you have a voltmeter I'd advise checking the mixture directly using the voltmeter and O2 sensor. --------------------------------------------------------------- Tom Young '81 Vanagon Lafayette, CA 94549 '82 Westfalia --------------------------------------------------------------- ----- Original Message ----- From: "Craig Oda" <craigoda@COMMUNITYBUILDERS.INFO> To: <vanagon@GERRY.VANAGON.COM> Sent: Sunday, September 07, 2003 10:45 AM Subject: failed SMOG, cylinder misfiring?
> Hi, > I have a '83 1.9L watercooled that recently failed the hydrocarbon test > for CA SMOG. CO levels passed. > I just installed a new O2 sensor, but no change. > > Engine runs fine at highway speed, but there is a noticeable pulsing of > the exhaust at idle, almost as if one of the cylinders was not fully > combusting. > > Valves appear to be properly adjusted and cylinder compression appears > to be within spec (lowest was I think around 120). I can check again > since I have the tool. > > Any ideas on what to look for? > > If I can't fix this, in the next few days, I'm going to bring it into a > mechanic. I'm thinking about Fred's Garage in Redwood City, CA. Any > recommendations? I live/work in Palo Alto, CA, so there is Ole's Garage > near my office, but I don't know if he is a VW man or not. > > I would love to take it to Ben's place in Sacramento, but it's a bit too > far for me to drive there with my wife and drop off the van. > > But, hey, there is also the slim chance that i'll find the problem > myself (with the help of the friendly people on this list). > > Peace and Thanks. > -- Craig |
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