I disconnected both O2 sensor ans temp sensor and neither is the
culprit. I am wondering if it might be a clogged fuel filter?

-john

On 2/19/2011 4:41 PM, Alistair Bell wrote:
> one thought is O2 sensor. Try disconnecting it (follow wires up into
> engine compartment, connection there)
>  van will run fine with it disconnected if that is the prob
>
> good luck
>
> alistair
>
>
>
> On 19-Feb-11, at 4:12 PM, John Goubeaux wrote:
>
>> I'm on the road and several hundred miles from home ( southern CA) and
>> my 90 Vanagon has begun to run bad. It is missing and has a serious
>> reduction of power when under load. It starts up and idles, but is
>> running real rough, no backfiring though. Its almost as if there is a
>> fouled plug or bad ignition on one of the cylinders Or its running way
>> too rich. I pulled the plugs and replaced them with clean re-gapped ones
>> but no improvement. I inspected the plug wires and they are in good
>> shape, almost new, so I doubt this is a problem, BUT I've seen a bad
>> plug wire cause this type of behavior before. I cannot imagine that
>> timing has changed. I should be able to limp back home as once up to
>> speed the car runs OK and is not overheating and oil pressure is good.
>>
>> Are there any tips on simple things I can check ( while on the road) to
>> at least eliminate any other obvious possibilities?
>>
>> Thanks for any suggestions!
>>
>> -john
>