Loss of power/ Acceleration since fitting Yozza on 172

[FatRS]

I'm after some help please. I bought a second hand Yozza off here and since having it fitted it appears to have a loss of power and in particular under acceleration. It appears to "bog down", Not quite a flat spot. Any ideas??? :S

Just for interest it's had new plugs and leads only about 4K ago and a new Pipercross panel filter and the standard exhaust I had on before was in perfect working order and the car pulled sweetly.

Thanks

 

[Dunn]

i would say its coincidental (unless you fucked the lambda when fitting the yozza) unlikely though

could be a number of things

diagnostics is the only thing that will tell you

pay £30 at a specialist or borrow an rstuner

 

[FatRS]

It was fitted at my work which is a Renault dealer. what effext would the lamda sensor have/ what does it do?

 

[Adam-o]

theres two. one before and one after cat, they are oxygen/ fumes sensors which tell the ecu whats going on with the engine. (it also can change the air/fuel ratio).
have you checked if its blowing anywhere? maybe your cat is knackered?

 

[FatRS]

Had the car on a ramp today and couldn't hear any other noise from anywhere else.