maf? - Page 2

super s · 23rd July 2015, 13:33

Quote:

Originally Posted by Ken Lion

I thought I had a Maf problem (I'd cleaned the EGR rather than bypass it) and had the Maf unplugged for some time.

But a closer inspection on a T4 (by BigRuss) showed that it was the EGR open/close actuator sticking and the Maf was performing as it should.

My EGR vacuum pipe is now deactivated, Maf plugged back in and there is a marked difference in low-end performance.

x2...

first idea for me would be this and then the ic orings and hose...

eddiemc05 · 23rd July 2015, 21:18

Thanks guys..
I cleaned egr today.. plus sensor in cooler pipe just before egr.. think that was air temp sensor.. not sure...valve moving freely using mitty vac... it wasnt that dirty tbh.. i think cleaned recently by previous owner.. (only have car since mid April)
So no real difference in performance either tbh..
So quick question about egr.. what is the benefit of removing vacuum pipe and bunging up?
Cheers

super s · 23rd July 2015, 21:48

no recicled gases again in the engine and the valve dont work so it wont become full of dirty stuff inside...

i did it mine zt..

23rd July 2015, 21:18	#12
eddiemc05 Gets stuck in Mg zt ctdi Join Date: Jul 2010 Location: newcastle n.i Posts: 537 Thanks: 76 Thanked 23 Times in 22 Posts	Thanks guys.. I cleaned egr today.. plus sensor in cooler pipe just before egr.. think that was air temp sensor.. not sure...valve moving freely using mitty vac... it wasnt that dirty tbh.. i think cleaned recently by previous owner.. (only have car since mid April) So no real difference in performance either tbh.. So quick question about egr.. what is the benefit of removing vacuum pipe and bunging up? Cheers __________________ Mg zt 2004 cdti

23rd July 2015, 21:48	#13
super s Gets stuck in mg Join Date: Jun 2015 Location: porto Posts: 542 Thanks: 134 Thanked 40 Times in 37 Posts	no recicled gases again in the engine and the valve dont work so it wont become full of dirty stuff inside... i did it mine zt..