jeudi 26 juin 2014

pics and vids of fault codes megane II 2003 1.4

went upto my sons today with our newly purchased OBDII cable and laptop with 3 seperate diagnostic softwares on it, theres also some short video's of the engine running with live readings, I will post each separate diagnostic software together so they are mixed up



diagnostic software 1

















pics from 2nd diagnostic software






live readings of both o2 sensors the pre cat one on the left side and post cat one on the right side top boxes are voltage changes and bottom are fuel trim



O2 sensors again this time live graph engine idle



o2 sensors with higher RPM





pics of 3rd diagnostic software















To me it looks like the after cat O2 sensor is broken, seeing as all 3 diagnostic softwares pick it up, the main question i have is could this non functioning o2 sensor cause knock on effects to bring fault codes up on the other things?



I await your expert opinions, thanks in advance




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