Hi All Vectra erratic running at 2000 Rpm Readings at 850RPM CO 0.1 @ 2000 0.00 HC 0 @ 2000 3 LAMBDA 1.00@ 2000 1.8 CO2% 15.15@ 2000 5.35 02 .14 @ 2000 13.14 VAC 56 @ 2000 55-48
blanked EGR Checked maf idle speed control valve coil ok. Checked for air leaks unable to find any secondary air valve ok. Just wondered were all extra air coming from ??? Recuring code idle speed control new unit fitted.