

| Subject: | Re: GOWESTY AFM no start problem |
| From: | Dennis Haynes |
| Date: | Sat, 25 Jun 2016 14:57:45 -0400 |
That voltage is a tad low bit indicates you don't have a short. Check the outer jacket for continuity to ground. Regardless this won't explain the no start. Usually it will start with AFM completely disconnected. Skip the AFM part and diagnose as a no start from scratch. Compression, spark, fuel. Dennis -----Original Message----- From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of Dennis Jowell Sent: Friday, June 24, 2016 1:38 PM To: vanagon@GERRY.VANAGON.COM Subject: Re: GOWESTY AFM no start problem O2 Green wire to braided wire with ignition on is .44 VDC is this correct ? Hope fully I understood your suggestion. This is using my craftsman digital multimeter. Dennis J Dennis Jowell Scotch Hollow Farm Newbury, Vermont > On Jun 23, 2016, at 7:18 PM, Dennis Haynes <d23haynes57@hotmail.com> wrote: > > As a 2 check for the O2 sensor signal wire, with the ignition on you > should measure ~.5-/6 volt between that wire and chassis ground with > the sensor disconnected. > > Dennis > > > > -----Original Message----- > From: Dennis Jowell [mailto:dennisjowell@gmail.com] > Sent: Thursday, June 23, 2016 1:22 PM > To: Dennis Haynes <d23haynes57@HOTMAIL.COM> > Cc: vanagon@GERRY.VANAGON.COM > Subject: Re: GOWESTY AFM no start problem > > Dennis > I checked the plugs they are running on the lean side (whitish > electrodes ) but no fouling there. The AFM is brand new from GOWESTY I > just got it in my mail and I never used it until yesterday. > Checked the O2 sensor connections. Green wire- the braided copper is > continuous to body ground, solid center wire to ground is around 200 > ohms to ground. I cannot find info on the required ohms for the center > solid wire in my Bently I originally thought that the solid center > wire should not have any ohms to ground on it. This must mean that the > interior wire is making contact with the braided wire. Would this be true ? > > Dennis Jowell > Scotch Hollow Farm > Newbury, Vermont > > >>> On Jun 22, 2016, at 8:37 PM, Dennis Haynes <d23haynes57@HOTMAIL.COM> >> wrote: >> >> In your messing around you may have gotten it so rich you fouled the >> spark plugs. Check them first. If so the O2 sensor is most likely >> also fouled and if lucky the time period was short enough that you >> didn't destroy the catalytic converter. Now as to what could have happened. >> You could have something as little as a poor connection at either the >> AFM > or the O2 sensor. >> Those sliding contacts on the airflow meter can be very troublesome. >> They don't have that much "wipe" pressure and just a little corrosion >> makes them intermittent. Also, the wires break inside the insulation >> or fail at the crimp. Most true AFM issues are in fact contact issues. >> When lucky changing the part takes care of the contact problem and >> you > think you did good. >> >> Changing parts like this you need to learn how to test for proper >> operation including O2 sensor voltages both disconnected (open loop) >> and connected, (closed loop, in control). >> >> Dennis >> >> >> >> -----Original Message----- >> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On >> Behalf Of Dennis Jowell >> Sent: Wednesday, June 22, 2016 12:38 PM >> To: vanagon@GERRY.VANAGON.COM >> Subject: GOWESTY AFM no start problem >> >> Here we go, >> My Westy 2.2 WBX was running almost great after traveling 2500 miles >> to Ontario and back to Vermont. Decided to install the new >> reconditioned GOWESTY AFM today. >> I disconnected the O2 sensor then installed the AFM started the >> engine with the O2 still disconnected idled great. Shut everything >> down > reconnected O2. >> With engine warn went for a short trip on our dirt road accelerated >> engine it started to miss fire then died! Got it started at idle then >> accelerated and it died again. Got it going again, limped back to the >> farm > at idle only. >> Now it won't start at all! I reinstalled the old AFM and it made no >> difference. Still no start. Engine turns over, disconnected the >> return to fuel tank line fuel comes out ok. I can hear the fuel pump running. >> I think the filter and pump are working., 2 days ago I changed the >> hall sensor wring with a new connector from GOWESTY, cleaned the hall >> sensor ground lead. It ran great after that installation. >> I'm about to try the"No Start tool" wiring kit that was suggested to >> use on the site. But before i did this I thought I would ask for ideas. >> >> Dennis Jowell >> Scotch Hollow Farm >> Newbury, Vermont
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