From what you have said it is possible that the exhaust is blocked. I would suggest removing the (front) lambda sensor and see if it will rev up better. It will be noisy!

Knock control will be actuated if the above condition is present.

If not the fault I would check the valve timing.

Merv the Swerv.

Hi Merv:

Thanks for your reply:
Did check the cam timing.. that is ok (according to the pullys)

The live data from my ELM reader was saying that the timing figures were retarded coming from the ECU (10degs retarded+).. its not as if the ecu is thinking its sending 20degs advance, but in reality its not.

Interesting thought about the exhaust - it does have a chavbox fitted on the back, customer said it happened pretty quick (like an electrical issue) rather than a progressive deterioration....
Will see how that lambda sensor come out

Cheers,
Dave

Dave,

if you have an infra red thermometer check exh temp in/out of the cat anything over 10/20% difference cat blocked,dnt quote me on the percentage figures tho because that is from the back of my memory,use your initiative on it !!

Rob.

well an update on this:

Cos it was quick and easy, i replaced the fuel pump and pressure regulator... No different
Drianed what little fuel there was and put some fresh in... no different


So: disconnected the knock sensor: no code logged and car mis-behaves the same...ie it starts, idles, then via viewing the live data the 'Knock Control' triggers when you start doing anything with the accelerator...

Odd that the knock control is triggering when the knock sensor is disconnected.. even removed the sensor completly.. Yet the 'Knock Control = on' still comes up as soon as you try to rev the thing up.

On the bench: i'm getting nothing out of the sensor.. certainly no voltage spike if its tapped, and measuring its resistance its open circuit.

Next on the shopping list then is a replacement knock sensor i reckon!.

Seems that the management system doesnt trigger a code, it seems to set the idle ignition timing to around 0degs and as soon as you try to rev up the knock control activates and the ignition retards more and the engine goes 'phut'

Watch this space....