PicoScope 7 Automotive
Available for Windows, Mac, and Linux, the next evolution of our diagnostic scope software is now available.
Drama is that a "NEW" part can be faulty.Now I do have a brand new MAF in the garage somewhere for these cars,
Sorry to burst the bubble but No! you don't have any advantage !I have the advantage that I have Tech 2 to check live data and fuel trims,
I disagree !!The scope trace from the MAF ideally should rise diagonally to a peak of around 4 volts or more,
That would be impossible, given that the sudden opening of the throttle will create a massive change from depression to atmosphere. That change will be a shock, sudden and not sustainable. The huge inrush of air to fill the void will be momentary.stay there while the WOT takes place
Sorry for the bump, I've been having a similar problem with my x10xe corsa. I've just replaced the MAF on mine with genuine Bosch part but it hasn't solved the problem.xj40s wrote: ↑Tue Nov 20, 2018 10:54 pmEventually I traced this to a faulty MAF. The fault would not show up in the garage, only whilst the car was being driven but it was cured by a new MAF.
I also discovered that these cars are from the factory "plumbed" incorrectly. The vacuum hose to the fuel pressure regulator is fed from the atmospheric side of the throttle, hence it does not regulate the fuel pressure properly. I modified the pipes so that the inlet manifold vacuum now regulates the fuel pressure properly. This has improved smoothness, performance, fuel consumption and the car runs quieter.