maf

So after having serious problems with a miss fire under load and lots of flat spots and spending lots of money on new timing belts aux map sensor lambda sensor etc etc and it still not running right, i decided to start unplugging all these new sensors because why not!!!....what harm could it do...

So the orange emissions light came on the other day on the dash,can runs fine no probs.First of all by reading up on some threads on here it was pointing towards the post lambda sensor.So I thought I would get it diagnosed before I spent out on some money,so @Sunglasses_Ron kindly let me borrow...