knock sensor 88 5ktq

[Jim Bonnet]

I have searched around abit and don't see an answer that hits me over
the head.

How do you know if a knock sensor is going bad? What are the symptoms?

I DO get the check engine light sometimes and have pulled codes and I
get the code that says the knock sensor or wiring is faulty.

Under boost the car hesitates like it is missing or something. Is this
the knock sensor trying to retard the timing? I have new plugs(3
electrode bosch), wires, dist cap and rotor. Run premium fuel.

This car has been 'chipped' to 1.8bar boost.

I only get this problem during 1.3 - 1.4 bar boost say 3500 rpm and
going 65 MPH. Also, on cooler mornings the problem is almost no existant
as compared to when the day gets warmer.

Thanks-- Jim
1988 5000 turbo quattro
2000 Passat Variant 4mo

-- 
Jim Bonnet