600rpm for 6grams? peece off!

[gldgti]

OK, not a very positive comment but this all sounds like baloney to me. Greg's got it right in that if you do something to cause a failure of the signal from the MAF to the ECU then you will cause the ECU to use a map that does not rely on a MAF reading, which could potentially provide the change in engine behavior that people are reporting.

Greg's big reporting post after he did the mod sounds a lot like the car has defaulted to a maf-less map (for a time at least).

Beyond that, its possible that the dirty contacts you create by smearing grease that is less conductive than the electrical wiring in the vehicle modifies the signal from the MAF enough to give the ECU false information - kind of like the "resistor type" tuning boxes that everyone bags out.

Last time I looked at the connector of my MAF sensor, it looks brand new like it came from the factory... I say leave it that way. If you happen to drive on salted roads and have some issue with large amounts of dust or mud in the engine bay, ok clean it out and put some nice rubber grease on the o-ring in the connector - otherwise your wasting you time.

[Buller_Scott]

i did it on my 1.9 purely based on the things i read on the two tdiclub cage mod threads... otherwise i wouldnt have wasted the money (im not exactly loaded).

i will have to respectfully maintain that it did make a difference for me. at the very least, it's keeping crap out of the connector, but in my case it delivered low-down and upper end driveability that i had not known before.

[gldgti]

but it still does or has it gone back to "normal".

True enough if your connectors were dirty then you may have improved things.

[Greg Roles]

It made a difference to me at first, and it seems Scotty has found it continued, so I'd have to say for the 1.9 it seems to be a great idea, for the MkV etc, not so much. Don't start arguning like the petrol boys now....

[kaanage]

It made a difference to me at first, and it seems Scotty has found it continued, so I'd have to say for the 1.9 it seems to be a great idea, for the MkV etc, not so much.

Maybe the 2 stroke in Scotty's fuel is having an effect on this too?

Scotty, you, me and Josh should do some controlled testing at Dub Addiction one night. We can get Tim to scan logs etc before and after the mod.

[Buller_Scott]

scotty, what ecu does your polo have? (vag-com scan should be able to tell you somewhere or other.. i forget right at the moment).

hi mate, sorry for the late reply - as far as i could ascertain from research (also in the context of remapping what computers etc) it's a bosch edc15

Maybe the 2 stroke in Scotty's fuel is having an effect on this too?

Scotty, you, me and Josh should do some controlled testing at Dub Addiction one night. We can get Tim to scan logs etc before and after the mod.

that sounds like a good idea greg. it would be good to see exactly what the differences are between your car and mine, on the same map (fast road, of course, unless you've got the track map, but then we could do the comparo on that map too).

[kaanage]

I'm running fast road and Josh & I did some tests which showed there's not much difference between his GIAC tune and ours so we should have a good baseline for comparison

[Transporter]

Last time I looked at the connector of my MAF sensor, it looks brand new like it came from the factory... I say leave it that way. If you happen to drive on salted roads and have some issue with large amounts of dust or mud in the engine bay, ok clean it out and put some nice rubber grease on the o-ring in the connector - otherwise your wasting you time.

I couldn't agree more.

Or if you disagree, connect VCDS and give us some logic and not just the magic.

[Greg Roles]

Guys, why lay into Scotty? It comes from TDI club, and I'd have to rate that resource as one of the best for VW TDI's worldwide. Sure it may be a longshot, but there was no downside, and my MAF still has grease in it, no errors, and is running as normal. No loss really!

Here I am putting mothballs in my tank, which is insane in theory, and risky even by my standards, yet to me, it works....and like Scott and his magic grease, if you want to try it, be it on your own head!

It takes some lateral, forward thinking to advance, and I for one am all for people willing to have a go at the longshot. Geez, pop my bonnet sometime and behold many, many longshots.....half of which no doubt don't work, but it's working out which half

[Transporter]

Guys, why lay into Scotty? It comes from TDI club, and I'd have to rate that resource as one of the best for VW TDI's worldwide. Sure it may be a longshot, but there was no downside, and my MAF still has grease in it, no errors, and is running as normal. No loss really!

Here I am putting mothballs in my tank, which is insane in theory, and risky even by my standards, yet to me, it works....and like Scott and his magic grease, if you want to try it, be it on your own head!

It takes some lateral, forward thinking to advance, and I for one am all for people willing to have a go at the longshot. Geez, pop my bonnet sometime and behold many, many longshots.....half of which no doubt don't work, but it's working out which half

It's all good Greg, that was just a suggestion not a "give us a prove or forever stay shut".
All comments and experimenting when shared and posted in a friendly manner are welcome here, you know that.