stuck another one on this week but just like my curant one , it cant seem to make its mind up what the mixture is going to be . ive watched a tuner set it and then by the time ive test drove it and come back its changed to a leaner mixture again !

so i need one that works perfect and that has just came off the car pls , not one thats sat on the shelf for a year and cant be proven how good it was

got myself another fuel pump coming in the post so hopefully between changing that and the metering unit i can get it running right