207 gt 1.6 turbo - Knocking noise on acceleration - dazsaw
I have just got this car it has full service history cam chain just has been replaced it runs fine and drives nice but I have noticed a slight knocking /tapping
Noise when I accelerate for example if I'm
In 5 th gear and put my foot down to over take the knocking noise appear it's not there in tick over any ideas would be a great help
207 gt 1.6 turbo - Knocking noise on acceleration - hardway

Have you had the "knock sensor" tested.

In case you don't know it's a sensor bolted to the block to detect knock from incorrect ignition and then the ECU adjusts the timing.

Or it could be that you ought to drop a gear before putting your foot down.

your way of doing it is a recipe for piston slap.

207 gt 1.6 turbo - Knocking noise on acceleration - dazsaw
I didn't no it had a sensor someone told me it was the timing out and needs adjusting so does it adjust its self from the sensor your saying about?
207 gt 1.6 turbo - Knocking noise on acceleration - galileo

As mentioned above, for overtaking you should drop at least one gear (if not two), regardless of whetehr the knock sensor can adjust timing to stop the knocking, it is not the right technique for safe, quick overtaking to floor the pedal in top gear. Not good for the life of the transmission either.

207 gt 1.6 turbo - Knocking noise on acceleration - hardway

In a nutshell yes.

TDC or crank sensor feeds back to the ECU where pre programed ignition maps lets the computer "decide" where to fire the plugs.

The knock sensor provides a signal from the "knock" to tell the ECU to change the ignition timing.

The days of adjusting ignition timing manually are long gone,

Unless your running something with points ignition.

207 gt 1.6 turbo - Knocking noise on acceleration - dazsaw
Thanks for the help
I'll get a new sensor and see if this fixes the problem cheers everyone
 

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