Suburu knock sensor

[jiranz5]

My dad owns a 1992 Suburu Legacy GT with something like 350,000kms on the clock. Recently the ignition has started being retarded and upon moving the knock sensor to a new location has reduced the problem. Does anyone know how to fix this problem or even bypass the knock sensor? Removing the knock sensor enirely doesn't work. Also he is running a twin WRX chipset system (however that works).

[bad20v]

Maybe you should try asking that same question on a SUBARU forum?

[Ako]

Its not ticking tappets causing the problem is it?

Or is the thing actually knocking maybe?

[Mr Revhead]

hhmmm legacy.... 1992..... i bet it is the lifters

[Rob]

The knock sensor often gets very dirty, if you clean it up it will probably be alot better.

I replace alot of them after melting, but we use second hand ones and they're still alright

[barryogen]

The early 90s subarus had a weird thing where they would sense the sloshing noise as knock if you put too thin of an oil in them(from memory 5 instead of 10 minimum), not sure if thats what you mean, but you never know.