Can someone post a link to a photo of the O2 sensor? I have been struggling with those symptoms forever, been separated from the V'gon for two whole years, am determined to get it fixed this summer. Thanks! Woody Halsey Woody's Wagen 1983.5
From: Dennis Haynes <d23haynes57@HOTMAIL.COM> Reply-To: Dennis Haynes <d23haynes57@HOTMAIL.COM> Date: Monday, July 15, 2013 5:00 PM To: <vanagon@GERRY.VANAGON.COM> Subject: Re: engine bucking and bogging - simple answer O2 sensor. Test! When it does that cycle the ignition switch. If it goes away for a short period O2 sensor or wiring it is. Also, when floored the O2 sensor is ignored. Dennis, From my phone. ________________________________ From: Alistair Bell<mailto:albell@SHAW.CA> Sent: ?7/?15/?2013 3:59 PM To: vanagon@GERRY.VANAGON.COM<mailto:vanagon@GERRY.VANAGON.COM> Subject: engine bucking and bogging - simple answer Another minor story. August 2010, 6 day trip into fairly remote logging roads on west coast of Vancouver Island. Van running fine until one day, mid day, it starts bogging and missing and stalling. I spent a couple of hours looking at the engine (wasn't a heck of a lot I could do out there). We could still drive, the problem would come and go with no rhyme or reason. We made it to Nitinat village and filled up with gas. Problem didn't come back. Oh BTW, I had replaced the fuel filter the month prior to trip. A year later, 2011, in the interior of BC (Cariboo area, travelling east down to Little Fort to then go down to Kamloops) the same thing happened. Exactly the same symptoms. Problem disappeared after next gas fill up. No problems in 2012. And now, weekend before last, same thing happened. Logging road travel, warm day, about 1/2 tank gas. I fiddled with engine again, nothing obviously wrong. We could make it back home, the problem was on and off. When it did buck and bog, I found that flooring it would make engine run normally. Next day the problem was still there. I took off TB and adjusted throttle switch. I added 250 ml of isopropanol to gas tank. Problem went away, mostly. Just the occasional hiccup. Filled up with gas, no problems since. I'm really suspecting bad gas, ie water in gas tank. I can't think of any other reasons. alistair |
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