check engine light

Mike Miller mikemilr at
Mon Aug 12 22:20:29 EDT 2002

.Well I pulled my codes and it came up
> >4444 wich means there are no codes wich leads me to ask Why is the
> >check engine light on? The only thing thats done to the engine is
> >the IA III+ ,could this be the reason why?
> >--

I seem to recall years ago hearing that the higher boost engines can cause
the ck engine light to come on momentarily under WOT due to the velocity of
the air moving past the O2 sensor and the sensor not being able to keep up.
I don't think it would throw a code.

mike miller
helmville mt

More information about the 200q20v mailing list