Morning all!
I have a '96 3.9V8 Discovery auto which has had head gaskets done. Was going perfectly before head gasket went. First overfuelled put in new ECU still overfuelled. Checked all sensors. Idles and revs up beautifully when in neutral less smoking. However, when engaging gear will not go. Like no vacuum advance and no vacuum assist on brakes. Please help! Best regards Gavin