Please advise if you can... When I open pico 7 and have a waveform on screen, if I wanted to compare it to a previous waveform, how would I get both on the same screen?

Thanks

My boss took a Polo in for diagnostics and himself using his scanner advised that a camshaft correlation problem was present. The car was left with us last week and Saturday afternoon I decided to put the scope on it to see what the engine shows!! Before touching the car, the engine starts and runs ...

I do remember with the years I spent at Rover, just how fickle the K, M and T Series engine could be with regards to carbonising valves It was often attributed to short journeys and low mileage vehicles and it was not unusual to see a cylinder head removed twice in 18 months where the vehicle cover...

Also, the Ford manual states that the difference between the cylinder pressures should not be more than 5 bar I'll take that as a misprint in the technical data. I've never known any manufacturer to allow up to 5 bar variation between cylinders, and only produce around 150 - 160 psi compression per...

Sorry for delay in replying. Still got car but not had time to further investigate. Will check what you advised and report back soon as. Thanks

Engine did initially smoke from startup as the engine warmed up, getting worse as the engine further warmed up. The smoke was quite bad. The customer took the car away and has now returned with it, The exhaust still smokes a little, but nowhere near as bad as previously. The exhaust emission (0.51) ...

Sorry for delayed reply wiki38andy but thanks for your input.

Did manage to find the time to do a back leakage test. The results speak volumes...

Referring back to the injectors trace above. My exhaust tail pipe emits dense black dry smoke when I accelerate hard. Most of the smoke clears but I suspect a poor spray/lower pressure injector fault. Given the current demand test won't show that type of fault, and without dismantling, is there a go...

Just an interim update.... I've rectified the EGR circuit fault and the exhaust system operation is much cleaner, and the power output of the engine is significantly better. Given then that the injectors all perform the same, I left thinking about what is operating on the engine to provide those spi...