Knock Sensors MC2 Digest #669-9

[Trevor Topley]

Eyvind,
        When I bought my 90 200q a year ago it had a driveability
problem, always lost power suddenly at 3800rpm, so drove below that
until diagnosed. Would still reach 1.4bar below that, but quicker to
upshift than go above 3800.
Suspected timing but?
When I fixed up a light to read the fault codes it showed the # for the
front knock sensor. Tried removing, cleaning and re-torquing, but no
difference, symptom was the same if left disconnected
Ended up buying a used one, plug was slightly different but it cured my
problem, she would then pull fine to redline
    Trevor Topley
    90 200q still with tempermentral boost.