Looks like that's the fault. Nice screen shot rob!

I could be wrong here but looking at the waveform the spark line looks high? Could this be a no fuel misfire?
Have you had the car on a gas analyser and checked the co and HC?

Thanks for the Info pico kev. Matt was one of the first people I spoke to and came very close to buying a scope from him before Xmas but ended up getting one from technical topics. I'll have to drop him a email and hope there's no hard feelings.. :? :oops: Moi Boy! Business is business, my life alr...

Do you have access to fuel trim data? If so, what are you getting for STFT and LTFT @ idle then at 3000 rpm?

How much was it if you don't mind me asking?

Hi Gruss , It could be worth your while talking to Matt Williams at Professional Diagnostics :arrow: http://www.prodiag.co.uk/training.html He is based in Northwich and therefore quite close to your location. He delivers Pico approved 2 day scope training courses (he is an ex automotive specialist ...

Damian Mc Bride wrote:Hi Gruss i done 2 day pico course at ADS with frank massey in Preston i found it very good course.
Frank makes course to suit the level of people attending.
Damiam

What course did you do Damian? There's so many on the site... The foundation one looks interesting?

No worries kev!
If I had more time I would upload loads of vauxhall waveforms but it's hard in a main dealer The only time I get is when I have a problem job, but that's when I need to compare to a known good one.

MAF 30-45kg/h @ idle greater than 350kg/h full throttle briefly (my original MAF was only hitting 220ish) BOOST 95-105kpa @ idle Greater than 115kpa full throttle FUEL PRESSURE 24500-32000 kpa @ idle 24500-148000 kpa full throttle briefly INJECTION QUANTITY 3.5-8.0mg/stroke @ idle Greater than 25mg/...

Any thoughts?