Got a zafira that randomly keep stalling on downshift or as approaching to a stop\
Plugged the op com in and no error codes except the speed sensor on the passenger wheel is not getting a signal (explains why speedo not working and will fix that for them next week) but doubt thats the cause
I have tried
Swapping Maf sensor
Swapping coil pack
Swapping Throttle Body
New Fuel Filter
EGR valve is blanked off
Reset ECU
Besides stalling and the speedo not working the engine is clean as a whisle and drives really smooth (no weird sounds)
Any suggestions?
Spark plugs are near new was going to try them next and the the injector rail and injectors