I have an MY01 with full decat and Tek3 running Optimax. Fitted a knocklinkand I get a dim bottom light (power) but absolutely no change, even when tapping next to the sensor. I have sensitivity at max, the sensor is mounted on the machined area above and to the right of the OEM sensor. Any ideas? Does it make a difference which way round the connectors to the sensor are attached?

Any insights much appreciated.

LoFi

 

Try tapping the actual sensor. I dont think it matters which way round the wires go but dont quote me on that.

 

The wires don't matter which way around they are but you will damage the sensor if you tap it. I supose if you can't get the Knocklink to light up you may have no other choice and you will have to tap the sensor at first very very lghtly then harder and harder to see if it may already be a damaged one.

Cheers,

Wrexy.

 

Tap the actual bolt that holds the sensor in, that way the sensor will sustain no damage and you will get the same result as hitting the sensor itself.

R.

 

It should flicker when you turn the engine over at start-up too.

 

Nom, it does flicker at start up but I thought that was more to do with the 12v power drain at start-up rather than the sensor?

LoFi

 

Piers - you have to hit next to the knocklink fairly hard. Also, double check you have it set to MAX sensitivity not min

Also any idea on this?

Rob? Anyone?

 

LoFi-- I got a knock sensor fitted by a subaru garage, they could not get the knock link to flash by tapping next to the sensor and they refused to tap on to the actual sensor for fear of damaging it.......but it finally lit up recently but flooring my p1 in 5th gear going slightly up hill from 70mph....so I know it's defiantely working.
the sensivity is set at max.
hope this helps.

 

If i tap (lightly) the block near the sensor the display goes crazy... very easy to light up the 'big red'. Set to max sensitivity. Wounder why mine is so easy to trigger and others aren't .

Tony.

 

Depends what you tap it with and how you tap Its listening for a particular frequency, I find it easy to light it up by smashing it really hard with a spanner

Seriously, a firm metal to metal knock (A high frequency "tink" rather than a dull "donk") should register something.

 

The flickering lights at start-up is good enough for Bob, so it's good enough for me Certainly better than knackering the sensor to find out if it's working or not.
You may find the best way of trying to make the lights come up is by holding the car at 4200-4300 rpm in 3rd then flooring it. 4500 is the most 'delicate' part of the map (highest VE of the engine) & if you can traverse this bit of the map quickly (ie ram a load of probably hotter than expected air into the engine as you've just floored it), you may be able to get it to light up.
Although you may not want to do this very often
Then again, it might not work...

 

Can nobody help with my problem?

 

thanks for all the replies guys, gonna experiment some more when i have an extra pair of eyes to look at the display whilst I knock.

LoFi