Been reading up on Maf sensors and wondered if mine was faulty (fuel consumption heavy) I unplugged sensor and had a good drive about, engine running ok, no spluttering etc. if anything it seemed more responsive,the only difference was a warning light on the dash. Went into my local dealer in Carlisle to enquire and they told me that it was a MAP sensor not a MAF and that by unplugging it from the air intake would only record a fault on the engine mamagement system, they advised me to get a diagnostic check from themselves which would take approx. 1 hr at a cost of £90.00. Has anyone else had this problem, would be grateful for any advice.