judder n16 sport+

[feedy]

please help ive got an almera phase 2 sport+. the thing is at around 2500 revs the car hesitates on acceleration and stops at 3000revs when driving. ive be told 3 different excuses 1.its due to the air flow meter damaged as the last owner fitted an after market airfilter (plank) 2. crankshaft sensor is damaged and 3. timing belt stretched but theres no chain rattle coming from the engine. has anyone else had this trouble. also once the problem is fixed how do i reset the ecu light on the dash many thanks for any help