GU patrol power mood swings

[Hodge]

if that is what it looks like after you have cleaned it then that's not good do you have a friend or something whos maf you could try

Yeh I figured it's no good that way I just wasn't sure. The spray didn't take a lot off of it.
Might just contact mudski and grab a new one. Makes me somewhat worried, how it got that dirty in the first place.

[threedogs]

You are spraying the wire on the Maf, eh.
If you do it over a clean rag you see results.
What area you in ?? Got spare Maf here but going away Friday
Or see Mudski never hurts to have two MAF

[Hodge]

You are spraying the wire on the Maf, eh.
If you do it over a clean rag you see results.
What area you in ?? Got spare Maf here but going away Friday
Or see Mudski never hurts to have two MAF

I sprayed the whole lot mate, inside where the wire is, outside where the shiny plate is. Thanks a lot for the offer mate, I might just grab one of mudski since he's around the corner from me. Will send him a PM now.

[Hodge]

Alright, I dropped the new MAF in this morning and drove around for a little while, and I couldn't get it to be sluggish like it sometimes used to. Fingers crossed the new MAF has solved the issue. Will keep an eye out on it over the coming days.
I'm a tad confused though. Reading in some other MAF & EGR related discussions, it's mentioned that MAF can get oil residue on it and in turn give out wrong readings. My old MAF had crap on it, but no traces of oil it was dry. How is it even possible for oil to backtrack from turbo to MAF ? Air is sucked in towards the turbo. Snorkel > filter > MAF > turbo. Am I missing something here ?

[boots]

Hodge , when the engine is hot and oil is hot and you turn your engine off your crankcase oil vapours and residue will take the easiest path to the atmosphere , hence a bit of muck can build up towards the air filter and housing . If your curious how much crankcase pressure these engines make , take it for a drive and get it to running temp , idle it down for a minute and unsrew your oil fill cap , put your hand over the hole , they work hard I can assure you . Buy yourself a provent 200 catchcan and fit it on , I have and they are a great thing .

[Hodge]

Thanks for the insight boots. Tried it today and I see what you mean.

In other news my plot thickens. New maf went in Monday. The cars been running fine since, but no different to before reckon... Until today.
Today all day it was so responsive and had that much go, it literally have goose bumps. And I've done or changed nothing since Monday.
If it's not the maf ... Then the only other thing that could vary is the ECU ?

[boots]

Scanguage fitted or boost pressure guage ? Very curious to know what that side of things is up to ? Your intercooler could be leaking also ?

[threedogs]

Yeah x2 have you any gauges fitted , best way to figure out whats going on
You may have heaps of boost one day and bugger all the next.
Hard to hold boost if IC is leaking/oily

[Hodge]

I have the gauges. But I'm waiting for the A pillar pod for the gauges now. Hence why they're not fitted. A soon as it arrives they're going in so I can see what's happening.
IC is not leaking as checked by mechanic about 2 months ago. Oily? I've popped the MAP sensor off the IC and there was a film of oil underneath it, but I haven't had the IC off yet personally to have a good look.
Even if the IC is leaking, I still find it hard to imagine why there would be such a alternating difference in power. Like today it ran like a million bucks, I feel like just jumping in it right now and driving it just because it felt so good before. In contrast to yesterday for example, it's as if I've all of a sudden added a turbo to a n/a car. :S

[Hodge]

Just plugged in the OBD scan before and went for a drive. Don't know how accurate it is, but boost maxed around 22 what looks like it to me...