Found this ~ Have no idea who the Dennis is ~ " When the coolant reaches about 100'F, the ECU goes into "Closed Loop" operation. At this point, the final fuel mixture is determined by the oxygen sensor. Dennis 10/26/00]" ORR ~ DeanB On 27 Feb , 2015, at 6:35 PM, Jon VO wrote: > Only if the engine is running long enough to get warm, not sure that is > happening. > > On 2/27/2015 4:54 PM, Steven Johnson wrote: >> Agreeing with Mark, O2 sensor. Had similar issue with my >> 91 and a replacement O2 sensor fixed it. >> >> Steven >> 91 Westy >> >> On Fri, Feb 27, 2015 at 3:05 PM, mark drillock <mdrillock@cox.net> wrote: >> >>> This sounds like it could be related to the oxygen sensor circuit. When >>> the engine is cold the ECU ignores the O2 sensor. Once the engine warms >>> >>> >>> Mark >>> |
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