Hi everyone! I have problem with my 1.4 AUA engine emmisions. On first measurements there was CO ~0.6 and CH ~200. After that I changed the sparks plugs, ignition wires with coil, new catalytic converter.. After that CO emmisions came down nearly 0, but CH start to go up 350ppm. So basically this CH value is fluctuating..
After that I make the intake manifold unmetered air test - there was no leakeage on it.. Check the fuel injectors for leakeage - no lekeage.. Changed the second lambda..
After all this nothing changed. VCDS measurements followed by ELSA doesnt show any value out of specifications.. So maybe this is due oil which goes into intake..
Also did compression test: values were 14-15 bar..
Hope somebody has some advice..
After that I make the intake manifold unmetered air test - there was no leakeage on it.. Check the fuel injectors for leakeage - no lekeage.. Changed the second lambda..
After all this nothing changed. VCDS measurements followed by ELSA doesnt show any value out of specifications.. So maybe this is due oil which goes into intake..
Also did compression test: values were 14-15 bar..
Hope somebody has some advice..