Hi guys,ive seen a nice zed for sale,its a uk car with service history,but its got the dreaded knock sensor fault,so its down on power.

 

Ive looked through the archives but cannot find a definate answer to the bypass that can be done with a resistor,does it actually work,or is it a temporary fix,or should it be done properly,as am i right in thinking its an expensive job to correct?

 

The rest of the car is fine,but cant really tell if alls well when theres no power!!

Hi guys,ive seen a nice zed for sale,its a uk car with service history,but its got the dreaded knock sensor fault,so its down on power.

 

Ive looked through the archives but cannot find a definate answer to the bypass that can be done with a resistor,does it actually work,or is it a temporary fix,or should it be done properly,as am i right in thinking its an expensive job to correct?

 

The rest of the car is fine,but cant really tell if alls well when theres no power!!

resister=10 pence

time for job=15 mins

does it work?? hell yea just put the resister (1 meg ohm) across the dett sensor socket (ecu side)

Is it that simple?Are there any side effects of doing it this way?is it better than relocating the sensor?

i have seen the zed too very tempting i would put a boost controller on then mod away

it works, the knock sensor only inputs below 3000rpm anyway, do it and when you lift the engine for some reason or other relocate the knock sensor and sort the problem

The only problem with this approach is that if you're running upped or stock 9.5psi of boost and you do get DET the ecu will not lower the boost level and you have a higher probability of doing more damage to your engine.

 

Ivan