I went to an Auto Wreckers today and picked up a used Mass Air Flow sensor for $50. Used the MAF cleaner to clean it up as it was pretty filthy, and left it to dry for an hour. Then I swapped out the one on my car.

Check Engine Light came on after around 2 hours of driving.

So it seems, the MAF sensor wasn’t the problem after all.

I have ordered an OBD-II reader that plugs into my PC so I can diagnose the problem myself. Since error codes for the Air/Fuel Ratio sensors were coming up before, I’m guessing either 1 or both of those is dodgy. Hopefully I’ll be able to tell which once I have the reader and I can see some of the data the car’s computer is producing.

Cars, they cost a fortune to run!