Hi,
>Normal trouble-shooting would be, take care of things you see
>first. Don't outsmart yourself. If #2 cylinder is like that then
>check the injector by swapping or ignition wire. Soot means rich
>or oil.
>Tony
>
>Francis P. Gravel wrote:
>
>> Bill, Did the engine backfire at all with the bad injector ?
>>
>> bill wrote:
>>
>>> My 88 mitsu van has a rough idle and poor exceleration. All the
>>> readings at the computer are correct. The O2 sensor is running in
>>> tolerance and fluctating in the upper scale at .5 to .6. The plugs are
>>> new (maybe 40 miles). Plugs from cyl 1, 3, and 4 are clean but they
>>> have soot on the base. Number 2 looks like it was never used. I am
>>> thinking that maybe the injector to thst cylinder is pluged. Would
>>> that make the O2 reading show lean and force an over rich mixture on
>>> the remaining cylinders.
>>>
>>