Ok i know it's been done to death but i've been driving with this probably since i've had the car,now a year.

 

Recently i tried the resistor trick and ***k me ,what a difference now it works properly,has anyone had the same problem and just uses a resistor,if so for how long and any problems since using it.

 

Which solution has anyone else tried:

 

A Replaced the knock sensor at great cost.

B Replaced the sensor but relocated without taking out the engine

C Just use a resistor.

 

Cheers........................

Good one this. The knock sensor on the Z is only of limitted use. Its operating range is up to ~3k rpm, if you're getting det in that region then you've got serious problems. The only time this would happen is with fuel pressure problems or a bad batch of fuel, along with a few other things but these are rare. It certainly won't protect you against running too much boost etc because the ECU won't be listening to it in those regions of the maps.

 

A) is always the preferable cure - it will protect your engine from serious damage should you get a bad batch of fuel or a serious problem with the fueling.

 

B) IMO is completely useless. The sensor is placed where it is because thats where it can 'hear' detonation best. Move it to somewhere else and its going to pick up other spurious noises (if on the heads may hear the valvetrain etc). Basically (IMHO) you may as well fit the relocated sensor in the boot for what use it is...

 

C) Better than B but not as good as A, although how much use the det sensor is anyway is open to debate. If you're confident you know what to listen out for then the resistor fix is acceptable - but DO THIS ENTIRELY AT YOUR OWN RISK.

youd be better off leaving the resistor in & getting a knock link sensor

Cheers Andy thought as much,my argument is so many cars don't even have a det sensor even modern cars, so have they fitted something which just makes us feel confident then when it's taken away, we feel like we miss it and it's needed.

 

However if there is a problem then the engine will brake,but i'm sure there are lots of other reasons why an engine could brake and no sensors to help prevent it.

 

I don't drive the car in the week,as the wife takes it to and from work,i just fit the resistor when i'm off for a drive at the weekend.............however i know people that have a resistor fitted permanently and have done for over two years now........

Paul what's a knock link sensor where do i find it how much and how do i fit it?????

 

Cheers

Paul what's a knock link sensor where do i find it how much and how do i fit it?????

 

Cheers

 

http://www.brdevelopments.com/link.html scroll down

 

dont think there that much, scooby boys use them a lot

I've done the resistor for about 6months and no probs, my car was an import and the det sensor was move to the back of the engine before i got it, to much work to replace the old one

Thing is that will tell me if det is occuring but can i link to the ECU?

No it won't link to the ECU. This uses the standard det sensor (or you've got to swap that with a replacement in the same location for it to be any use). Not really much use IMO....

See what you mean Andy think i'll start finding out how much it would actually cost me to replace it???????????????????????

 

Let say i did decide to do this what else should i do while the engine's outs,anything else that needs servicing or is worth changing while the engine is out?

 

cheers

No need to remove the engine!!! About 4 hours labour, do the cambelt/tensioner/upper water pipes/thermostat/water pump/TB bypass hoses/polished plenum (:D ????)

 

You'll also need a few gaskets, the lower intake gaskets are a ****in rip off though :(