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Model specific boards => Golf mk4 => Topic started by: Xtrhardcore on 09 July 2012, 16:44

Title: Running without the MAF connected?
Post by: Xtrhardcore on 09 July 2012, 16:44

Whats the likely problems you will cause running the car MAF disconnected?

Just curious as everyone says do it on very short trips becasue its bad for the engine but what will actually happen haha??

Don't fancy testing it myself just yet :grin:

Title: Re: Running without the MAF connected?
Post by: oceanic-green on 09 July 2012, 16:52

I actually done this today, and ran the car for about 1 mile or thereabouts, to see if my problem was with the maf. My car run exactly the same as when it was plugged in, so I guess its not my maf that is at fault. And I have have not experienced any problems for trying it.

Title: Re: Running without the MAF connected?
Post by: Xtrhardcore on 09 July 2012, 16:56

Oh sweet, i really need to try this, Anyone else had any experiences running it for longer??:)

Title: Re: Running without the MAF connected?
Post by: scarr89 on 09 July 2012, 17:00

I think the maf has something to do with how much fuel is injected. So if you leave it unplugged then it may overfuel/underfuel...

Title: Re: Running without the MAF connected?
Post by: Dalo Harkin on 09 July 2012, 17:20

I ran mine for a long time, wont say how long  :lipsrsealed:
no lasting effects on mine

Title: Re: Running without the MAF connected?
Post by: golf-sib on 09 July 2012, 17:25

With no maf the car feels sh!t. As in a lower max rev limiter. The MAF helps work out how much fuel needs to be injected, you can tune the ECU to run without a MAF as well as some aftermarkets ECU's can do this. So with the maf off the ECU becomes cautious.

Title: Re: Running without the MAF connected?
Post by: Wazzzer on 09 July 2012, 18:12

Quote from: golf-sib on 09 July 2012, 17:25

With no maf the car feels sh!t. As in a lower max rev limiter. The MAF helps work out how much fuel needs to be injected, you can tune the ECU to run without a MAF as well as some aftermarkets ECU's can do this. So with the maf off the ECU becomes cautious.

Yup, it runs on safe fuel values according to the throttle angle, no air is taken into account. It also limits your boost

Title: Re: Running without the MAF connected?
Post by: rio_gti on 09 July 2012, 18:18

Quote from: Dalo Harkin on 09 July 2012, 17:20

I ran mine for a long time, wont say how long  :lipsrsealed:
no lasting effects on mine

I understand your fitting a new turbo....... Wonder why  :grin:  :laugh:

Title: Re: Running without the MAF connected?
Post by: DunnDeal12 on 09 July 2012, 18:22

Quote from: rio_gti on 09 July 2012, 18:18

Quote from: Dalo Harkin on 09 July 2012, 17:20

I ran mine for a long time, wont say how long  :lipsrsealed:
no lasting effects on mine

I understand your fitting a new turbo....... Wonder why  :grin:  :laugh:

a bigger one.

Title: Re: Running without the MAF connected?
Post by: Dalo Harkin on 09 July 2012, 19:17

Quote from: rio_gti on 09 July 2012, 18:18

Quote from: Dalo Harkin on 09 July 2012, 17:20

I ran mine for a long time, wont say how long  :lipsrsealed:
no lasting effects on mine

I understand your fitting a new turbo....... Wonder why  :grin:  :laugh:

I understand you are fitting a FMIC  :smug:  :lipsrsealed:

Title: Re: Running without the MAF connected?
Post by: evogti on 09 July 2012, 21:20

my maf was knackered only running 170bhp when i took it off it ran worse .so after a couple of weeks bought a brand new maf and now the car must be running 220 easy boosting 1.5 bar .so my maf was the problem

Title: Re: Running without the MAF connected?
Post by: Wayne on 09 July 2012, 23:44

It will not hurt for a short test ride but should never be left disconnected.