Cold start problems. Help!

Sparkie

Angling Adict.
Sep 25, 2009
2,541
779
Middlesex
Hi guys
I’m in need of some information please.
For a few months through summer my car has on most occasions fired up with a cold start. With the revs up high.
It’s done this even at midday in 20 degrees.
It only does it for the first fire up. Once it’s been run for a minute it won’t do it again.
It throws up no code faults.
I get that it’s a sensor which must be failing and not reading a proper temperature at initial start, but does anyone know exactly which sensor governs the cold start up activation?
Just changing out thermostats and temp senders Willy nilly would cost a packet.
Any help appreciated.


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Alexis27

Active Member
Dec 20, 2009
2,095
451
Manchester
Do you get the EPC light showing?

Warm start problems are often the crankshaft sensor. But it often throws a code
 

Sparkie

Angling Adict.
Sep 25, 2009
2,541
779
Middlesex
Do you get the EPC light showing?

Warm start problems are often the crankshaft sensor. But it often throws a code

No. No codes. No lights.
Seems whatever isn’t reading correctly hasn’t actually failed completely.
Just a guess.


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