Arctic2
Well-Known Member
Why do you have the MAF unplugged is it not working properly ie makes the car go into limp mode? always best to clean the EGR, & manifold out a couple of days or a week before the MOT, change PCV filter, air filter etc basically do a service on your car a week before the MOT always works well for me, both cars never failed and no advisories for the last 12 years.
it will probably fail emissions.
i.e. mine did, as i had the maf removed for last years test.
No. it's not on and last year I had three amigos and it passed.
No the MAF should still be fine, even though it's a 25£ off ebay one. I have a new Bosch around as well, but testing as it seems that power is better without and fuel seems to be better as well. It's a bit up and down, might be more related to the missing temp. sensor on the MAF.
No, the MAF should work. It's a cheap one off ebay for 25£, but that new it should be ok. It was just that again it runs with more power when off. I have a new Bosch here as well, which I'll fit sooner or later. Fuel is also around 31mpg also going up and down, but I think that might be related to the missing temp. sensor.
yes.
..
i knew it might fail emissions sans maf.
only one way to find out fer sure ;-/
[ was curious as the engine had been re-mapped in between mot's
[ plus i had a maf issue in anycase .. y.t.b. resolved ..
[ been running mafless at mo.
,.
having passed the test with an unplugged MAF sensor, but as the value as being expected is really bad I will plug it back in again.
It says here: - 3rd free acceleration smoke 2.43l/m at 4815RPM.
This was an A4 print out. I am not sure if it is the same as in the years before when I got a small slip print out.
It was
2018: 31/1/18: 1.18 or 1.08 best MOT
16.03.18 .94 or 0.85 where it says pass was after installing the emission saver piece
29.03.18 0.21 MOT AU (smoke emissions in Germany)
12.04.18 .63* or .59 where it says pass
01.02.19 .62 or .79 where it says pass
29.01.2020 .36 or .42 where it says pass
02.03.2021 .53 also on pass first time
Last year I didn't get a paper and forgot to ask. Is that for the same value? Because then it's really poor now and I will attach it again.
I still think it would be good to disconnect but only leave the temp. sensor attached to regulate the fuel amount.
I found a picture on a German forum for VW/Audi last week, which looks as an alternative to the wires. To drill a small hole on the backside of the MAF to increase flow. They said it's if the MAF is dying to get its life extended a bit. To drill very cautious to not destroy the metal behind it.
having passed the test with an unplugged MAF sensor, but as the value as being expected is really bad I will plug it back in again.
It says here: - 3rd free acceleration smoke 2.43l/m at 4815RPM.
This was an A4 print out. I am not sure if it is the same as in the years before when I got a small slip print out.
It was
2018: 31/1/18: 1.18 or 1.08 best MOT
16.03.18 .94 or 0.85 where it says pass was after installing the emission saver piece
29.03.18 0.21 MOT AU (smoke emissions in Germany)
12.04.18 .63* or .59 where it says pass
01.02.19 .62 or .79 where it says pass
29.01.2020 .36 or .42 where it says pass
02.03.2021 .53 also on pass first time
Last year I didn't get a paper and forgot to ask. Is that for the same value? Because then it's really poor now and I will attach it again.
I still think it would be good to disconnect but only leave the temp. sensor attached to regulate the fuel amount.
I found a picture on a German forum for VW/Audi last week, which looks as an alternative to the wires. To drill a small hole on the backside of the MAF to increase flow. They said it's if the MAF is dying to get its life extended a bit. To drill very cautious to not destroy the metal behind it.
