Maf lifespan ? - Page 2

Mike Noc · 2nd October 2020, 21:55

Quote:

Originally Posted by sewerman

Can second that Jamie has mafless mapped my 75 211000miles and ZT 121000 miles with no clouds of smoke and both went through the MOT smoke test at 0.01

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You say no clouds of smoke, so does it smoke or not?

Even without a MAFless map it shouldn't smoke during an MOT test running with the MAF unplugged because the engine isn't under load, so there is plenty of excess air in the cylinders.

sewerman · 3rd October 2020, 06:52

To be clear both of them do not smoke under hard acceleration until about 4500 revs when there is a light short duration puff. Certainly not red arrows smoke on style of smoke.

And ive seen enty of more modern diesrls give a similar puff on hard acceleration.

The MOT comment was made to reassure people a mafless map is quite capable of passing an MOT.

My PCV fiter, o rings , egr valve and manifold etc are all in good condition. And there was no italian tune ups on either car.

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ADO282 · 3rd October 2020, 13:05

I've often wondered if a car didn't require a MAF, why Rover didn't delete them as part of Project Drive??

My Rover 75 is of course petrol so doesn't have one fitted, however if I owned a diesel it probably would want it to remain standard.

3rd October 2020, 06:52	#12
sewerman Gets stuck in MG ZT+ CDTi Join Date: Feb 2014 Location: Wolverhampton Posts: 632 Thanks: 166 Thanked 264 Times in 154 Posts	To be clear both of them do not smoke under hard acceleration until about 4500 revs when there is a light short duration puff. Certainly not red arrows smoke on style of smoke. And ive seen enty of more modern diesrls give a similar puff on hard acceleration. The MOT comment was made to reassure people a mafless map is quite capable of passing an MOT. My PCV fiter, o rings , egr valve and manifold etc are all in good condition. And there was no italian tune ups on either car. Sent from my SM-G977B using Tapatalk

3rd October 2020, 13:05	#13
ADO282 Banned ROVER 75 Connoisseur Join Date: Jul 2020 Location: BRACKNELL Posts: 270 Thanks: 125 Thanked 130 Times in 92 Posts	I've often wondered if a car didn't require a MAF, why Rover didn't delete them as part of Project Drive?? My Rover 75 is of course petrol so doesn't have one fitted, however if I owned a diesel it probably would want it to remain standard.