MAF unplugged, whoosh!

Kiltman · 8th April 2012, 12:34

Just unplugged the MAF and much more get up & go. Will do some 0 - 60 & standing quarter times later with & without to check its not just a placebo. My questions are:How will it affect the fuel consumption?
Is it ok to leave it unplugged permanently?

sworks · 8th April 2012, 12:38

If you have more power with it unplugged then the MAF is faulty and the ecu is running on a default. In time the ecu will realise it is disconnected and revert to a default as before

Arctic · 8th April 2012, 12:41

Quote:

Originally Posted by sworks

If you have more power with it unplugged then the MAF is faulty and the ecu is running on a default. In time the ecu will realise it is disconnected and revert to a default as before

Agree you need a new maf £157 from euro-carparts with the discount of the club changed mine about 3 weeks ago and as you whoosh!

Kiltman · 8th April 2012, 13:50

Tested 0 - 60 timesMAF plugged in 13.9 seconds
MAF unplugged 12.6 seconds
Seems to be slower pick up with it plugged in.
Looks like I will have to start saving for a new MAF!

blacknwhite · 8th April 2012, 18:27

I've run mine for 9months with MAF unplugged. Chris kindly sorted me out with a MAF today at the first NE Metro meet of the year. Not sure yet on performance difference (it defo GOES), but certainly the mpg should be better (slightly). Certain mine would beat these times though. That might just be the X-power upgrade for you.

Kiltman · 8th April 2012, 18:56

Mine is X-powered too, think there are other issues, O-rings for one. Will change the MAF when I have the funds.

blacknwhite · 8th April 2012, 19:03

Quote:

Originally Posted by Kiltman

Mine is X-powered too, think there are other issues, O-rings for one. Will change the MAF when I have the funds.

How's your thermostat? I did the in-line thermostat mod, it gets upto temp within 4-5miles now and has a big influence on performance - sluggish when cold, shifts when hot. Once the needle hits 9 o'clock and you floor it, it GOES.

Kiltman · 8th April 2012, 19:08

Yep, that's another issue!

Departed 32016 · 8th April 2012, 19:25

Quote:

Originally Posted by Kiltman

Tested 0 - 60 timesMAF plugged in 13.9 seconds
MAF unplugged 12.6 seconds
Seems to be slower pick up with it plugged in.
Looks like I will have to start saving for a new MAF!

That seems very slow either way- i'm sure mine's about 9 seconds, although with a few mods, synergy etc...

blacknwhite · 8th April 2012, 19:30

Quote:

Originally Posted by kieranswood

That seems very slow either way- i'm sure mine's about 9 seconds, although with a few mods, synergy etc...

Yip, I'd say mine was around the 9secs as well, that's just with X-power upgrade.

8th April 2012, 12:34	#1
Kiltman I really should get out more....... MG ZT CDTi 135 / Rover 75 Club SE 160 Join Date: Jun 2011 Location: Leek Posts: 2,013 Thanks: 235 Thanked 128 Times in 104 Posts	MAF unplugged, whoosh! Just unplugged the MAF and much more get up & go. Will do some 0 - 60 & standing quarter times later with & without to check its not just a placebo. My questions are:How will it affect the fuel consumption? Is it ok to leave it unplugged permanently?

8th April 2012, 12:38	#2
sworks Been absent for a while… Rover 75 Tourer, Classic mini Cooper S, Abarth 595 competizione, MG TF and a Hyundai Tucson PHEV Join Date: Feb 2007 Location: Cumbria Posts: 13,065 Thanks: 1,033 Thanked 1,686 Times in 1,040 Posts	If you have more power with it unplugged then the MAF is faulty and the ecu is running on a default. In time the ecu will realise it is disconnected and revert to a default as before __________________ ................................................. 'Marmite' Possibly one of the most famous 75 tourers produced! left the production line as the last of only Three Rover 75 tourers produced in Trophy Yellow. 48 hours later Longbridge closed. The last sold ordered 75 Tourer. Paid for by the Phoenix Four and handed over by John Towers to the Warwickshire Northampton Air ambulance service as a Rapid Response vehicle

8th April 2012, 13:50	#4
Kiltman I really should get out more....... MG ZT CDTi 135 / Rover 75 Club SE 160 Join Date: Jun 2011 Location: Leek Posts: 2,013 Thanks: 235 Thanked 128 Times in 104 Posts	Tested 0 - 60 timesMAF plugged in 13.9 seconds MAF unplugged 12.6 seconds Seems to be slower pick up with it plugged in. Looks like I will have to start saving for a new MAF!

8th April 2012, 18:27	#5
blacknwhite Posted a thing or two Black Rover 75 Connie CDT and Twilight Chromactive ZT Turbo Join Date: Jun 2011 Location: Newcastle upon Tyne Posts: 1,602 Thanks: 15 Thanked 16 Times in 7 Posts	I've run mine for 9months with MAF unplugged. Chris kindly sorted me out with a MAF today at the first NE Metro meet of the year. Not sure yet on performance difference (it defo GOES), but certainly the mpg should be better (slightly). Certain mine would beat these times though. That might just be the X-power upgrade for you.

8th April 2012, 18:56	#6
Kiltman I really should get out more....... MG ZT CDTi 135 / Rover 75 Club SE 160 Join Date: Jun 2011 Location: Leek Posts: 2,013 Thanks: 235 Thanked 128 Times in 104 Posts	Mine is X-powered too, think there are other issues, O-rings for one. Will change the MAF when I have the funds.

8th April 2012, 19:08	#8
Kiltman I really should get out more....... MG ZT CDTi 135 / Rover 75 Club SE 160 Join Date: Jun 2011 Location: Leek Posts: 2,013 Thanks: 235 Thanked 128 Times in 104 Posts	Yep, that's another issue!