4agze knocksensor questions

[themaleman]

ok i broke yet another dam knock sensor trying to replace it with the engine in the car!
i have read on here about people with link computers not using a knock sensor.

can i do this on a standard computer? or will having the sensor unpluged send the engine check light on again?

the car isnt going yet so i cant try it with it simply unpluged

car in question is a latemodel ae92 gtz

[willy_monkey]

Did you break the one you got off me?

[themaleman]

unfortnatly you dont hapen to have another 1 do ya?

[matt dunn]

Car will run without it,

but check light will be on and it will be well down on power.

[themaleman]

mmm thats what was happening ages ago when it kept coming unscrewed.

ok so i have to replace it.

my next question is, dose it mater where abouts i put it? i see thers a similer hole to screw it into on the next cylinder over, looks to be in a more accesable spot. its curanlty on 4th cylinder

[85AW20v]

Car will run without it,

but check light will be on and it will be well down on power.

Would that apply to all engines that run knock sensors Matt? Might have to fix mine up before the next playday if it does......

[molex]

Ran mine up on the dyno the other day throwing a code for the knock sensor, ended up doing the run with it unplugged. Appears to go into limp mode and pull all timing, to say the results were lacklustre would be an understatement

[matt dunn]

Would that apply to all engines that run knock sensors Matt? Might have to fix mine up before the next playday if it does......

Pretty much yeah.

Anything with a knock sensor will run closed loop timing kinda,
as so if it knows it cant detect the knock it wont let the timing run as far advanced as it should be, and so you loose power,

and you cant remote mount them,
as they are more like an engine noise detector, as so are always detecting a small amount of noise, so if you bolt it to say the inlet manifold,
or cable tie it up and earth it, it wont detect the normal amount of noise and so does the same as it not being there.

[MAGN1T]

I used to know a ropehead who had a hotted up WRX.
The typical person who knows nothing about cars. He was telling me (pub talk) how he made it run a whole heap better after he relocated the knock sensor. Needless to say it blew up a few weeks later. You get that.

Steve

[AE82 FXGT]

I think he might mean relocate it to a different thread hole on the block.

Not just put it somewhere else, thats rediculous

[themaleman]

yea im not thinking of relocating it as such, more moving it over so its eaiser to get 2. by the sounds of it it should b sweet, i guss all i gota do is try t!

any other toyota knock sensors known to work on a 4agze?

cheers for the replys also!!

[matt dunn]

I have a smallport 4AGE NA one, dont know if it will fit/work or not?

[themaleman]

thanks, but i was told by a wrecker that 4age-4agze arnt interchangeable, but since i have a bigport 4age here ill steel its sensor and give it a ago just to be sure. but in the mean time im still after a 4agze 1, dosnt matter what year its from. i have all the plugs

[ChaosAD]

thanks, but i was told by a wrecker that 4age-4agze arnt interchangeable, but since i have a bigport 4age here ill steel its sensor and give it a ago just to be sure. but in the mean time im still after a 4agze 1, dosnt matter what year its from. i have all the plugs

Seems strange considering they have the same block and bore diameter is the same, or is it just that the plug is different?

[Bazda]

I went through this ages ago.

The 4agze AFM version engine would not run on any other knock sensors but a 4agze afm one.

The MAP ones might ruin on other 4age knock sensors though.

[themaleman]

true true, luckly for me its map sensord, will try my 4age 1 in the weekend

[CAMB01]

Had the same issues with mine a wile back. a 4AGZE wont run on any other knock sensor other than a 4AGZE knock sensor, AFM and MAP.

[themaleman]

till it broke i was using a aw11 4agze knock sensor on my map sensored computer no worries, so any 4agze should do. i cant comment on the afm computers

[ChaosAD]

Perhaps they switched from narrowband to wideband sensors on the change to the map gze