MAF mod
 

With the MAF disconnected the perfomance is same if not better and the fuel mpg is looking the best it has been,
NO WARNING LIGHT SHOWS OR CAN BE DISPLAYED ( there is not any engine warning light that I can see only airbag, ABS etc ),
Best mod by far i have done since owning the car from new,
I wish I had done it years ago I would be pounds in pocket on fuel saving etc,
I strongly recommend this for any one with the same car as me,

Top of the range Rover75 CDTI 131BHP 11/2003 Tourer Auto Conn SE,

Cheers.

if you do not want a very large bill for a very sick engine get the MAF replaced asap.if you are getting a better performance and better mpg it just shows your MAF as been out of speck for a while,you can run without it for a short time but best to replace with genuine bosch MAF.

Pinebob is right.

Your car is now performing on the default settings, which give better results than the clapped out MAF that you had connected.

With a new MAF it should be even better.

Unplugging the MAF to see if it runs better with it disconnected is a standard test for an 'out of spec' MAF.

It sounds like you have never experienced an 'in-spec' MAF.

Not a good idea to run too long without a MAF - it could cause serious damage to your wallet!

Singvogel.

maf
 

Well if the maf is dead it must have been like it from when I bought the car brand new and the replacement map must have been dead two, ( I THINK NOT ), I will keep you all posted on the greatly improved maf less mpg,

MAF mod
 

Please tell me FACTUALLY what damage will occur by being maf less, not hear say,guess work or theory.

The MAF controls the fuelling at the lower end of the rev scale, and without it, the ECU will revert to basic fuelling maps, which will be just enough to make the car run, but not much more.

You may run a risk of engine damage if you run it like that for any length of time although opinions seem to vary on this with some saying it will not cause any long term damage but will di less mpg with it unplugged

The advice to disconnect the MAF is purely to confirm or eliminate it as a cause of poor running.

A new Bosch MAF will set you back about £200 but you can use a Pierburg type in conjunction with a Synergie 2 tuning device which will not cost you much more - look out for Roverons banner on the forum homepage which links you to his website, also search for other threads on MAF failure, there are plenty on here

A very sick engine and a large bill, for what, and how ?

My car has been running almost a year with the MAF unplugged, running it's stand-by fuelling map.
I have no smoke, get almost 60mpg on a run and no running problems at all.

What damage do you think I'm causing to my engine ? :)

I suppose it will run even better on an in-spec MAF.

I thought the whole point of the MAF was to optimise fuel delivery (improving efficiency) and broaden the power band.

I'm not doubting it would run better with an in-spec MAF, but I'd be interested in what damage running without one "could" cause.

£150-200 for a new MAF will buy a lot of fuel..

I would love a definitive answer to this, does anyone know for a fact that unplugging the maf causes damage?