MK5 Golf GTI

All Things Mk5 => Mk5 General Area => Topic started by: TOONARMY on March 11, 2010, 09:34:58 pm

Title: Slight missfire at idle.
Post by: TOONARMY on March 11, 2010, 09:34:58 pm

Evening all.

I went on a nice long drive today, about 140 miles ish. I noticed when the car is at idle that there is a slight missfire. The car doesnt lack in power and no warning lights are coming on. The car on short journeys adverages about 24-26mpg and on the long drive today was at 36mpg. Does anyone know if this is normal at all, also my fuel consumption seems to be a little high.

cheers
toon

Title: Re: Slight missfire at idle.
Post by: Top Cat on March 11, 2010, 09:38:32 pm

Fuel consumption seems slightly high but nothing to excessive are you using the high octane stuff like V-Power. If you are then maybe it wasn't used in its previous life and will take some tie to adapt.  :happy2:

Title: Re: Slight missfire at idle.
Post by: TOONARMY on March 11, 2010, 09:42:14 pm

Quote from: Top Cat on March 11, 2010, 09:38:32 pm

Fuel consumption seems slightly high but nothing to excessive are you using the high octane stuff like V-Power. If you are then maybe it wasn't used in its previous life and will take some tie to adapt.  :happy2:

ummmmmm, im not useing the V power mate. Should i be? Could this be the cause of my slight missfire.

toon

Title: Re: Slight missfire at idle.
Post by: Top Cat on March 11, 2010, 09:44:43 pm

I dont know about the misfire, it shouldn't be down to that as the ECU can adapt to either fuel.
The V- power is more expensive at the pump but he engine runs more economical using it so it works out about the same price, but the v- power makes a big difference to the performance.  :evilgrin:

Title: Re: Slight missfire at idle.
Post by: TOONARMY on March 11, 2010, 09:49:56 pm

I think i might give the V power a try next time im at the pump. The missfire isnt bad, but its very slight.

toon

Title: Re: Slight missfire at idle.
Post by: Top Cat on March 11, 2010, 09:51:36 pm

As i say use it religiously for a few months dont put any nasty 95 ron in and you should see a big improvement.  :happy2:

Title: Re: Slight missfire at idle.
Post by: TOONARMY on March 11, 2010, 09:55:22 pm

Quote from: Top Cat on March 11, 2010, 09:51:36 pm

As i say use it religiously for a few months dont put any nasty 95 ron in and you should see a big improvement.  :happy2:

improvment in mpg?

toon

Title: Re: Slight missfire at idle.
Post by: Top Cat on March 11, 2010, 09:56:48 pm

Yes.  :happy2:

Title: Re: Slight missfire at idle.
Post by: bacillus on March 11, 2010, 10:20:07 pm

And power output...

Title: Re: Slight missfire at idle.
Post by: FamilyDub on March 12, 2010, 12:46:37 pm

The missus borrowed the GTI one day last month, because her car was in the garage. She was kind enough to 'fill her up' for me, using sh1tty Sainsbury's 95 RON.  :mad:

Now, I'm still on the same tank and I can totally feel the difference in both power AND consumption, especially nearer the top of the range.

Either V-Power or Tesco Super FTW!