GT4 knock sensor

[m12kop]

Engine check light on, code reading 52 which i think is the knock sensor, wiring or ECM? Any ideas on most common fault and where to find sensor. Thanks in advance.

[Mr E]

m12kop said:

Engine check light on, code reading 52 which i think is the knock sensor, wiring or ECM? Any ideas on most common fault and where to find sensor. Thanks in advance.

Charge cooler fluid level.

The most common code the car will throw.

Buy some toyota red coolant.
Take cap off charge cooler.
Start engine.
Top up.
Blip throttle (you'll see the level drop as the pumps start. Top up with throttle slightly open.
Put cap back on.
Turn engine off.
Reset ECU.

Robert is your fathers brother.

[m12kop]

Charge cooler fluid is ok?

[Diceman]

Sorry Mr E it is knock sensor (code 54 is Chargecooler)

52 - KNK Open or short circuit in Knock Sensor Check for broken/brittle wire, check sensor correctly torqued up, check sensor terminal not covered with oil/shorted out, replace sensor, shake sensor - it shouldn't rattle! There should be no continuity between the centre pin and the body of the KS

Likely your knock sensor is dead m8 - a real PITA to change and TBH they typically die either due to old age or shedlaods of knock (bye bye engine time) What is the cars specs? Modded?

[m12kop]

Engine standard and sounds very sweet, where is the knock sensor hiden?

[Diceman]

On teh back of the black. Just under the inlet manifold where it enters the the engine (i.e on teh block just below the head!) IIRC you can touch it by removing inner wheel arch liners but I don't think you can see it.

[m12kop]

Sounds like a nice job, i'll have a go tomorrow,i,m sure i'll be back here then!

[Diceman]

Hi m8,
The knock sensor is the item just below the inlet port 2nd from the left on teh image below:-

[m12kop]

Great help mate, cheers.

[Mr E]

boocks - I can't believe I mixed 52 and 54 up. Apologies.

Just goes to show the last time my car threw a code at me (was ABS, and took months to sort).

[m12kop]

Fitted new sensor,car running perfect, thanks.