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I just wanted to let you know how this ended... ...it was indeed the MAF sensor. It should have been an easy replacement but the two screws holding the sensor in place were rusted to hell and there was no way that they were coming out without a fight. The easiest solution appeared to be to removed the air filter housing and pipework and then have a good go at the MAF screws on the workbench. Of course it wasn't quite as straight forward as that. Removing the airbox is near impossible. However, in the end, the air box came out (in bits) and the MAF sensor was replaced and while I wa
Thanks for the above. Time has been an issue recently so I haven't managed t take a further look yet. I'd like to think it isn't bad gas - the car had covered around 600 miles in the week before this incident. Is there any chance that a bad MAF would produce these symptons?
I have a 2000my 986 Boxster 3.2S with manual 'box and its covered around 130,000 miles. It hasn't seen a lot of use over the past couple of years - less than 1000 miles (yes I know, its a waste of a good car). In fact this has been bugging me, so a few weeks ago I decided to stop using my daily driver quite so much and use the Boxster a lot more. A couple of weeks into this plan, and after a journey of 120 or so miles, its started misfiring slightly and over the next couple of miles, got significantly worse. In fact it refused to rev over 2500rpm at all and when I pulled up at the next junctio