1995 – 2001 VAUXHALL Vectra 2.5 i Poor starting from cold

download Disconnect battery. Disconnect harness multi-plug from engine coolant temperature (ECT) sensor Fig.1 [2] . Disconnect harness multi-plug from mass air flow (MAF) sensor Fig.1 [4] . Remove protective cover Fig.1 [1] . Remove plastic tube from wiring harness Fig.1 [3] . Remove insulation tape from wiring harness. Cut engine coolant temperature (ECT) sensor wiring [...]