MK5 Golf GTI

All Things Mk5 => Modifications & Technical Area => Technical Workshop => Topic started by: raznutz on June 22, 2013, 09:08:02 pm

Title: mk5 golf gti drinking petrol after service
Post by: raznutz on June 22, 2013, 09:08:02 pm

Hi guy's. Since I service my car oil air and plugs. On golf mk5 gti 05reg .it seems to being drinking petrol. Any suggestions. ......

Title: Re: mk5 golf gti drinking petrol after service
Post by: swedishfireball on June 22, 2013, 09:24:46 pm

Could be a few things, I'd say either Incorrectly gapped plugs or if you disconnected the battery the ECU is back in 'learning mode' and will drink usually drink more than Gazza on a bender.. for a while.

Title: Re: mk5 golf gti drinking petrol after service
Post by: raznutz on June 22, 2013, 09:33:28 pm

Plugs are genuine and  battery hasnt been disconnected

Title: Re: mk5 golf gti drinking petrol after service
Post by: raznutz on June 22, 2013, 09:45:19 pm

Really need help guys

Title: Re: Re: mk5 golf gti drinking petrol after service
Post by: Kinks on June 22, 2013, 10:18:09 pm

Sounds like an ecu in learning mode

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Title: Re: mk5 golf gti drinking petrol after service
Post by: raznutz on June 22, 2013, 10:31:18 pm

Ok
Is there anything I can do

Title: Re: mk5 golf gti drinking petrol after service
Post by: dokez on June 22, 2013, 11:15:54 pm

fuel leak ?

Title: Re: mk5 golf gti drinking petrol after service
Post by: raznutz on June 22, 2013, 11:17:55 pm

nothing seems to be leaking,ive looked when the engine was running,all i had was an oil and air filter and fuel filter replaced and wv parts..

Title: Re: mk5 golf gti drinking petrol after service
Post by: john87 on June 23, 2013, 10:05:23 am

What's your average mpg after a 20-40 mile run, not flooring it?

Title: Re: mk5 golf gti drinking petrol after service
Post by: scopes on June 23, 2013, 10:36:57 am

Quote from: raznutz on June 22, 2013, 09:08:02 pm

Hi guy's. Since I service my car oil air and plugs. On golf mk5 gti 05reg .it seems to being drinking petrol. Any suggestions. ......

 :popcornsoda:

Quote from: raznutz on June 22, 2013, 11:17:55 pm

nothing seems to be leaking,ive looked when the engine was running,all i had was an oil and air filter and fuel filter replaced and wv parts..

Was it filter or plugs?

 :rolleye:

Title: Re: mk5 golf gti drinking petrol after service
Post by: raznutz on June 23, 2013, 11:01:05 am

i get around  28 mpg before the service


well yesturday i was driving the car i looked at my display of fuel range it ad 35 left so i put my foot down for a couple of secends it went straight down to 10 miles range left.which is so wrong....

Title: Re: mk5 golf gti drinking petrol after service
Post by: madhoose on August 20, 2013, 01:56:52 pm

Hi,

I had a similar issue with mines after they did some work, Don't know if the GTI setup is the same though.

My problem was in the back left of the engine bay, the clips into the fuel filter where loose and when you gunned the engine the fuel was flooding out.

Might be worth a look.

Title: Re: mk5 golf gti drinking petrol after service
Post by: arris on August 20, 2013, 02:25:46 pm

I disconnected my battery on Friday to fit my MFSW buttons then took it on a run Saturday.

Was using cruise at about 70-80 and only got 30mpg could this be because of this learning mode?

Title: Re: mk5 golf gti drinking petrol after service
Post by: stealthwolf on August 20, 2013, 11:25:19 pm

Quote from: raznutz on June 23, 2013, 11:01:05 am

i was driving the car i looked at my display of fuel range it ad 35 left so i put my foot down for a couple of secends it went straight down to 10 miles range left.which is so wrong....

Not really. Range is calculated on the fly from mpg. If I boot the car and say the mpg is 25, the range might be 250 miles. If I then drive slowly, the mpg improves and the range will improve.

You got 28mpg before the service. What did you get after?

Have you checked tyre pressures? Whenever i took the car to VW, they would decrease tyre pressures to 22psi which made the handling and mpg worse.

Title: Re: mk5 golf gti drinking petrol after service
Post by: raznutz on August 22, 2013, 08:57:06 pm

Its ok now.I put petrol cleaner in and its alot better.thanks