18 replies to this topic

[DX220]

1. To cleaner or not to clean? 
   1. If so, CRC cleaner or anything else?
2. Bosch or HAAS 

[siztenboots]

petrol / brake cleaner ( toluene)

 

its the oily crankcase vapours that coat everything in the tube

[Nev]

petrol / brake cleaner ( toluene)

 

its the oily crankcase vapours that coat everything in the tube

 

Does the oily vapour manage to upstream to the MAF on the VXTs??
 

[DX220]

Ok, HAAS doesn't fit

 

Will try cleaning before gettting my now annual replacement 

[siztenboots]

should be lasting years

[DX220]

should be lasting years

 

I'm sure you're right!

 

Except it seems like, every year for the past 2 - 3 years, car keeps going into limp mode, or turbo goes on strike, etc. etc.

Unplug MAF, problem goes

New MAF

New year - repeat 

[DX220]

On a turbo, I don't have an EGR valve do I?

Edited by DX220, 14 June 2018 - 10:40 PM.

[siztenboots]

no egr

[DX220]

Update

 

Sprayed MAF liberally with this: Wynns Petrol EGR Cleaner

 

MAF in air intake hose, but unplugged from electrics (and air filter side)

Engine kept idling at ~ 1500rpm

Short bursts of spray to prevent stalling; basically following instructions on can

 

 

Well it's only been 48hrs

 

 

But...

Finger crossed..

 

 

We have liftoff 

 

 

I'd venture to say: better than back to normal!

 

Chicken count yet to start 

 

Edited by DX220, 17 June 2018 - 10:03 PM.

[tibby]

 

should be lasting years

 
I'm sure you're right!
 
Except it seems like, every year for the past 2 - 3 years, car keeps going into limp mode, or turbo goes on strike, etc. etc.
Unplug MAF, problem goes
New MAF
New year - repeat 

 

Welcome to my world.... Every year another one

 

You probably have a cone filter / performance type filter?

[DX220]

 

 

should be lasting years

 
I'm sure you're right!
 
Except it seems like, every year for the past 2 - 3 years, car keeps going into limp mode, or turbo goes on strike, etc. etc.
Unplug MAF, problem goes
New MAF
New year - repeat 

 

Welcome to my world.... Every year another one

 

You probably have a cone filter / performance type filter?

 

 

 

Errr, no!

 

I do have an Astra H VXR K04 Turbo fitted however.

Maybe that has the same effect? 

[tibby]

 

 

 

should be lasting years

 
I'm sure you're right!
 
Except it seems like, every year for the past 2 - 3 years, car keeps going into limp mode, or turbo goes on strike, etc. etc.
Unplug MAF, problem goes
New MAF
New year - repeat 

 

Welcome to my world.... Every year another one

 

You probably have a cone filter / performance type filter?

 

 

 

Errr, no!

 

I do have an Astra H VXR K04 Turbo fitted however.

Maybe that has the same effect? 

 

 

Nope, nothing to do with the turbo...

[DX220]

well that lasted!

 

Not 

 

Ruined a nice cross-country drive home with roof off to boot

[Nev]

Perhaps you have a wiring fault leading to the MAF? Try bending the loom feed around with the old "bad" MAF in and see if fixes the problem, also trying inspecting/cleaning the plug as that might be causing a fault.

Edited by Nev, 23 June 2018 - 08:17 PM.

[DX220]

Perhaps you have a wiring fault leading to the MAF? Try bending the loom feed around with the old "bad" MAF in and see if fixes the problem, also trying inspecting/cleaning the plug as that might be causing a fault.

 

I get an engine warning light when MAF is unplugged, but none when just misbevaing.

I won't get one with wiring fault?

 

Will try the wrap around 

Cleaning the plug was where I started

[DX220]

Belated update.

 

Having tried lots of things, I was at the point of giving up, and getting new pedal sensor (as suggested by garage).

 

Cleaned the infamous contacts behind rear wheel arch........

 

 

 

..

 

 

 

...

 

 

.. got the car back for the summer ! 

[iram]

the only true way is to ditch the maf and change the ecu for true inner peace! 

[DX220]

the only true way is to ditch the maf and change the ecu for true inner peace! 

 

Haven't come across that one before! 

[iram]

 

the only true way is to ditch the maf and change the ecu for true inner peace! 

 

Haven't come across that one before! 

 

 

worked for me! best thing i did! no more limp mode and tinkering to try and clean them in the vain hope they will work!  relent buy a new one then rinse repeat!