MAF Sensor 160 owners may recall an earlier post by me on the 'Calling C160 Owners' post; I had an ECU amber warning light come on back in May. The symptoms are a cough and splutter but the car keeps going and seems to run OK once stopped and restarted, which works every time but the light stays on. In the end it came on 4 times through the year and was twice diagnosed by a standard plug in computer as a discrepancy between the throttle pedal potentiometer and the throttle body position on the 'fly by wire' system; once by an AA man and then as a quick cancel job in a local garage. The 4th time the engine died on me (luckily going slow, close to home, with a successful restart) so I thought I had better get it properly sorted. A visit to a Suzuki main dealer was not much help other than they said they have not had probs below 100k miles. A query into Caterham elicited an admission that they had to change a couple of throttle bodies on early 160's. I expected a similar diagnosis from a full and deeper diag session by a qualified auto electrician, so was surprised when it showed that the Mass Air Flow device (gizmo on front of the air filter body) was reading low. I have no idea why the MAF suddenly started to read low; it could be heat related (it always seemed to happen after/during a long hot run) or (more likely) dirt on the hot wire measuring element - which, according to whiz kid mechanics on U Tube, can be cleaned with a special cleaner. I am assuming that the throttle diagnosis was a 1st level effect rather than cause, with the ECU adjusting the throttle body to maintain the right mixture according to the MAF output, and when it got too far out of kilter it set off the alarm. I have now fitted a new MAF sensor (£119 from CC online but is a Renault part) and I can tell that the engine is running smoother and acceleration is sharper. I will let you all know what the longer term brings. Meanwhile, there might be mileage in giving yours a clean over the winter.