WordSmith

Simply cleaning the maf and map sensors does not guarantee that they are in good working order.

You can obtain cheaper ones; simply for diagnostic basic and fault code reset range £80 to £130; plan B is Ebuy. My buddy has the "Snap-on" one, which is very good, runs on Windows, and even makes toast. However, it costs almost $2,000. Good fortune.

Yes, I purchase mine in bulk, roughly 20 litres for £60, air and oil filters are generally around £20 for the two, and every third visit I replace a gasoline filter, which costs me around £40.