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Model specific boards => Golf mk3 => Topic started by: sbushby on 27 September 2013, 20:52

Title: Random cut out??
Post by: sbushby on 27 September 2013, 20:52

Hey all,
Strange one today. While driving along the car just died...pulled over and turned it over which it did fine. Didnt take straight away but when it did it popped and banged a bit before revving to 4k and slowly dropping.....then drove fine??
Started it later and again it was lumpy spluttering a bit before clearing then running fine??

Anyone had similair issues?

Title: Re: Random cut out??
Post by: VW BUSH on 28 September 2013, 11:51

my guess is the Coil

Title: Re: Random cut out??
Post by: Luke1981 on 28 September 2013, 16:05

Could it be a faulty MAF sensor?

Title: Re: Random cut out??
Post by: sbushby on 30 September 2013, 08:54

Thanks guys.
Coil has been suggested and throttle body to. Ill clean the maf and see what happens. Thanks again

Title: Re: Random cut out??
Post by: Len on 30 September 2013, 12:53

Unless you have been driving in very heavy rain and some electrical part got wet I would say the coil too!

Title: Re: Random cut out??
Post by: sbushby on 27 October 2013, 23:44

Replaced coil, dizzy and rota arm.....also plugs and leads.....still happening?? Cam position sensor next but beginning to get annoying

Title: Re: Random cut out??
Post by: Deano2711 on 27 October 2013, 23:54

Sounds like the MAF to me as mine had a similar problem. Try unplugging the MAF then driving car. If it gets any worse its ok and if no different thats the problem Mate

Title: Re: Random cut out??
Post by: andy_k on 28 October 2013, 00:35

Quote from: Deano2711 on 27 October 2013, 23:54

Sounds like the MAF to me as mine had a similar problem. Try unplugging the MAF then driving car. If it gets any worse its ok and if no different thats the problem Mate

Mine won't even start with the MAF disconnected.

If it's constant then possibly a blocked injector?

If it happens regularly when the engine gets hot then a sensor has to be the main suspect.

Title: Re: Random cut out??
Post by: bigberty101 on 28 October 2013, 07:31

Valves don't have a maf. They have a map sensor in the ecu instead. Try the blue temp sensor, causes issues exactally the same on yours, just on the right of the head near the coolant flange

Title: Re: Random cut out??
Post by: boneybradley on 28 October 2013, 11:06

looking at your other post i would take a chance of either ecu or fuel pump relay, when the car is warm touch both and see if either are red hot, Both are known to fail and can cause some odd running issues but more so after several miles of running
replace as needed

Title: Re: Random cut out??
Post by: sbushby on 07 November 2013, 21:35

boneybradley., cheers for the shout. have replaced both relays and still happening........

bigberty101, at the risk of sounding mega dumb, please can you explain where this is. I have laready replaced the engine coolant temp sensor that screws into block??Is this one diffrent.

Definately only doing after its properly warm, then left for a little while.....

Update of changes so far, plugs, leads, rotor arm, dizzy, engine water temp, both fuel and ecu relays, cam position sensor,ignition coil, vacuum hoses aswell as cleaning throttle body

Title: Re: Random cut out??
Post by: sbushby on 09 November 2013, 23:11

Right guys so an update..........

Changed the "blue" sensor in water system which is to do with a thermo cut out, no joy.... ;-(

Car still playing up when warm.....so going to destroy the bloody thing..

Title: Re: Random cut out??
Post by: N900 MJT on 09 November 2013, 23:32

Used to have this issue in very wet weather, have you changed the coil/ht leads/spark plugs yet?

Have you had it plugged into vagcom yet to see if any error codes are there?

Title: Re: Random cut out??
Post by: sbushby on 14 November 2013, 23:34

Not plugged in yet as initial test didnt show any fault code from garage, but do think they were full of poo....

Strangely no engine lights on??