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Model specific boards => Golf mk3 => Topic started by: gtitdi on 16 January 2007, 21:53

Title: trouble starting when engine's warm
Post by: gtitdi on 16 January 2007, 21:53

hi, just wondering if anyone has any ideas about this... I have a 1.6 Mk3 CL, when the engine is cold it always starts on the first turn straight away. When the engine is warm it takes a good second or more of turning over before it starts. What could cause this?

Thanks in advance

Title: Re: trouble starting when engine's warm
Post by: boneybradley on 16 January 2007, 22:20

Temp sensor.......Work's the gauge and also ecu, cost about £10 and they take 10 minutes to fit

Title: Re: trouble starting when engine's warm
Post by: gtitdi on 16 January 2007, 22:49

Where is it located and how are they replaced?

Title: Re: trouble starting when engine's warm
Post by: boneybradley on 16 January 2007, 23:08

This show's my ady engine but they are in a similar place on all mk3's...one point just check the colour of your's as there is a few differnt one's... and to fit you just un clip the wire and they pull out

(http://i88.photobucket.com/albums/k165/boneybradley/DSCN3430-1.jpg)

Title: Re: trouble starting when engine's warm
Post by: gtitdi on 17 January 2007, 12:53

Thanks for that, I'll have a look.

Recently, the temp gauge on the dash has been a bit all over the place, could this be due to the faulty sensor or could it be the thermostat?

Title: Re: trouble starting when engine's warm
Post by: boneybradley on 17 January 2007, 13:11

That sound's like a faulty temp sensor or lose wiring...And on the pic i have refered to this as ecu temp sensor and when they fail the ecu think's the engine is cold and then add's more fuel (making your engine hard to start)