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Date:         Tue, 6 Dec 2016 09:45:05 -0800
Reply-To:     John Goubeaux <john@UCSB.EDU>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         John Goubeaux <john@UCSB.EDU>
Subject:      Re: intermittent running rich issue
Comments: To: Stacy Schneider <vwcrewman@GMAIL.COM>
In-Reply-To:  <CAN1zYv_3NNaao2VWdKQx+h+WPc4_x8fOeC7bO+zaZZ9iYCXRQw@mail.gmail.com>
Content-type: text/plain; CHARSET=US-ASCII; format=flowed

Thanks, which ground connection would be the likely culprit ? Ground at the ECU ? This is a tough problem given it has been VERY infrequent.

I know there are a couple of grounds in the engine compartment to the engine case, one from the distributor as well as a strap from the wiring harness area on the LH to the engine case.

-john

On 12/5/16 2:47 PM, Stacy Schneider wrote: > Check and clean your grounds first. > > Stacy > > On Mon, Dec 5, 2016 at 2:18 PM, John Goubeaux <john@ucsb.edu> wrote: > >> Hi Guys, >> >> 90 2.2 gowesty engine >> >> I've experienced an intermittent running rich / loading up condition >> condition. When I say intermittent, I've seen it say 4 times in the last >> 2 months. >> >> It's always been on the warmup cycle after startup where the car starts >> fine, idles OK but begins to stumble and run rich on accelerating at >> some point soon afterward. >> It eventually goes away after the engine runs a while and warms up. The >> last time it happened, yesterday morning the car stalled and would not >> start. >> I left it off and re-tried after 10-15 minutes and it started right up >> and the issue went away. >> >> Because this condition has been infrequent, I've not put much thought >> into it BUT am now considering the " Temp II " coolant temp sensor to >> be the potential problem source. >> >> Am I correct in assuming that this is the likely root of the issue, >> maybe sending the ECU some out of bounds values ? >> >> Should I replace it altogether, or clean the contacts and maybe add some >> dielectric grease ? >> >> Thanks for any input. >> >> -john >> > > > -- > 1989 Swedish Tristar with Aluminum gates and Atiwe 16" Wheels. > Oldest son is an Eagle scout.


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