Re: New MAF - New Man!
Yes. Fill her up with Optimax or BP ultra, reset ECU (disconnect battery, short leads for 10 secs, reconnect, turn ignition to MAR for 90 secs min, turn off for at least 90 secs, start engine but do not touch throttle for at least 15 mins - until temp steady and fan has come on, switch off, )then take her for a good thrashing.
Try cleaning throttle body/butterfly too. Krud can build up preventing butterfly returning to fully seated position. See articles elsewhere for this. DON'T force butterfly or you'll knacker the servo motor, just move it very very slowly, if at all. Also check the 90deg bend rubber pipe from resonator box to throttle body has a tendancy to split at the bottom in the concertina bit, probably due to oil from vacuum hoses.