Knock sensors

[AndyP]

If the only difference is the length of the cable, just buy 2 from here

http://homepage.internet.lu/customautocraft/typeB3-B4_80_90_S2_RS2.htm

I bought mine from Audi and I seem to remember they wern't that expensive.

[prj]

Most saabs measure ionization in cylinder to determine knock via the spark plug.
Must be from an older one...

All new cars that use knock sensors use wideband sensors and digital circuitry to filter the signal, instead of the signal filter being built into the sensor. Tatech does the same.
This significantly lowers manufacturing cost of the knock sensors, as one sensor can fit almost any car.

[europeanme]

I got mine from an automotive place for a fraction of the price that audi want for it....direct from the manufacturers...

Steve, pm for the link if you want....

[europeanme]

If the only difference is the length of the cable, just buy 2 from here

http://homepage.internet.lu/customautocraft/typeB3-B4_80_90_S2_RS2.htm

I bought mine from Audi and I seem to remember they wern't that expensive.

now they are cheap!!!....

FYI, they are now....

[terrybullwon]

Most saabs measure ionization in cylinder to determine knock via the spark plug.
Must be from an older one...

All new cars that use knock sensors use wideband sensors and digital circuitry to filter the signal, instead of the signal filter being built into the sensor.
This significantly lowers manufacturing cost of the knock sensors, as one sensor can fit almost any car.

Yep, i'll dig the PN out but you have to configure it your self any how

[SteveH]

If the only difference is the length of the cable, just buy 2 from here

http://homepage.internet.lu/customautocraft/typeB3-B4_80_90_S2_RS2.htm

I bought mine from Audi and I seem to remember they wern't that expensive.

Thanks for the link, prices look very good indeed

[s2driveruk]

I bought mine fairly recently though struggling to remember from where, I'd try and dig up the thread but they werent too expensive. I think as least one came from GSF

[Bullysteeth]

http://www.gsfcarparts.com/parts/ele...s/knock-sensor
these are listed for my 93 aby avant

[SteveH]

Loads of places sell the green sensor and hardly anyone stocks the brown one. I can't see any reason why the 3B and ABY ones would be different? In fact, I'm about to convert to ABY ECU and coils, so I should be purchasing the ABY ones!

[SteveH]

The only difference between the sensors is lead length

Are we in agreement that the only difference between the green and brown knock detectors is the lead length? That and the colour difference of the plugs?

One sensor is stocked by all and cheap (green) the brown lead doesn't appear to be stocked and it's more expensive.

[UrS4boy]

Are we in agreement that the only difference between the green and brown knock detectors is the lead length? That and the colour difference of the plugs?.

Yes

[urquattpaul]

Audibits 2 on e bay has a pair for £10 plus postage, off a 7a so should be ok ?

[UrS4boy]

Audibits 2 on e bay has a pair for £10 plus postage, off a 7a so should be ok ?

I doubt it (See below):

[mcandmar]

7A is a different sensor, visibly very different in that its a metal stud with the lead coming out the center unlike the ABY plastic one with a bolt holding it on. Personally i wouldn't dream of inter changing them as they are for the Shitachi EFI not Bosch motronic.

[s2driveruk]

not sure if it helps but stumbled over the pn's

Knock Sensor - Brown 3B ---- 077 905 377 A ------ 0 261 231 040 ------ £26.91 + VAT
Knock Sensor - Green 3B ---- 054 905 377 A ------ 0 261 231 038 ------ £22.98 + VAT
Knock Sensor - Blue ABY ---- 054 905 377 G ------ 0 261 231 036 ------ £22.98 + VAT
Knock Sensor - Blue ABY ---- 054 905 377 -------- 0 261 231 036 ------ £22.98 + VAT
Knock Sensor - Green ABY -- 054 905 377 A ------ 0 261 231 038 ------ £22.98 + VAT