MK5 Golf GTI

All Things Mk5 => How to Guides / Troubleshooting => Topic started by: Mk5dub on September 06, 2014, 02:03:36 pm

Title: Throttle hesitation from cold start-up
Post by: Mk5dub on September 06, 2014, 02:03:36 pm

I would appreciate some advise on an irritating problem with my standard Mk5 GTI. (50,000 miles)

From a cold start I have a noticeable throttle hesitation. Literally one minute into a journey and the engine characteristics return to normal.

The car has been well maintained. I have replaced the D.V, PCV, & the Coils,

What's your thoughts please.

Title: Re: Throttle hesitation from cold start-up
Post by: Danbear79 on September 09, 2014, 01:08:40 pm

I can't help unfortunately, but my gti does exactly the same. I dont accelerate hard until the car is up to temperature, but I would love to know why this happens. Changing to a Rev g didn't help, bit it definitely made my boost come back  :signLOL:

Title: Re: Throttle hesitation from cold start-up
Post by: Pikey Motorsports on September 09, 2014, 01:25:11 pm

Plugs? Possibly carbon buildup

Title: Re: Throttle hesitation from cold start-up
Post by: GrayMK5GTI on September 09, 2014, 03:21:51 pm

Don't all engines do this when "on choke"?

Engines don't work their best (and shouldn't be thrashed) until they're warm  :happy2: the ECU is dumping fuel into the exhaust to heat up the cat and trying it's best to get up to operating temp. Wouldn't expect it to drive wonderfully as well. . .

My ed30 and my old GTI were unresponsive from stone cold 

Title: Re: Throttle hesitation from cold start-up
Post by: Pikey Motorsports on September 09, 2014, 05:40:37 pm

Not sure if he means hessitation as in slight hickup/missfire

Title: Re: Throttle hesitation from cold start-up
Post by: Mk5dub on September 09, 2014, 06:50:27 pm

Thanks for the response. It is defiantly not a misfire. I described it as a hesitation because when you acelerate there is nothing there for a fraction of a second. The closest comparison I can make is something similar to turbo lag.

Title: Re: Throttle hesitation from cold start-up
Post by: Nico2904 on September 09, 2014, 08:27:38 pm

I would change spark plugs, check/clean MAF sensor with contact cleaner

Title: Re: Throttle hesitation from cold start-up
Post by: SuperVillan on May 18, 2015, 07:27:46 pm

same here, does yours make the sounds but fail to do anything ? mine feels like somebody has stuck a potato in my tail pipe but only for like a minute after iv been driving for about 1 - 2 mins the car is fine, now i know this is not a big deal but i like to have my things working at they're best

Title: Re: Throttle hesitation from cold start-up
Post by: robmcclel on May 20, 2015, 01:09:26 pm

They all do it don't they, it's sluggish for the first couple of minutes and then its fine, is it not intentionally there to allow the engine time to warm up and get to temperature before you screw the nuts off it and destroy the cold engine? Think about it oil is denser when its cold so when its not up to the correct operating temp it will not circulate around the engine as easily therefore meaning your engine is more at risk of damage.

Title: Re: Throttle hesitation from cold start-up
Post by: Andy-GTI on May 20, 2015, 10:54:12 pm

Run a can of BG44K through engine. May be a placebo but it appeared to smoothen the start and running of the car, more noticeably from cold. Only £10 odd can't do it any harm

 :happy2: