Would a faulty IACV have any affect on...

[Volvo321]

A low rpm stutter when on wide open throttle? I can appreciate how it works when the car is idling, but is it possible that a faulty Idle Air Control Valve would cause a problem when a car is on wide open throttle? Say between 1000rpm and 1500rpm.

Cheers

[valve bounce66]

no,what car is it ? would possibly be a faulty plug/lead/dizzy cap if its got one.

[Volvo321]

Mondeo 2.5 V6, I have googled the problem and some people seem insistent that the IACV could be at fault. If a plug, lead or coil pack was at fault id have thought it would stutter all over the rev range? Regardless, I will recommend to my friend he clean it and change all plugs and leads.

[stevieturbo]

Any IACV problems would have negligable effect on WOT running.

[Volvo321]

Would a vacuum leak or split hose be of any relevance?

[valve bounce66]

stevieturbo said:

Any IACV problems would have negligable effect on WOT running.

+1 first thing to try is spark plugs !