misfire / poor running when cold

misfire / poor running when cold

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Discussion

willibum

Original Poster:

81 posts

200 months

Wednesday 18th July 2012
quotequote all
Hoping someone can help with an issue I have with my wife's 1991 Eunos 1.6 auto.
It's an excellent car and runs really well but has a really irritating problem before it warms up. When cold it feels like it wants to stall, the revs are slightly erratic but once warm it runs beautifully.
Before I take into my local independent I wondered if anyone had any ideas.
I have recently had some work done on it including cambelt kit, water pump, thermostat & housing and temperature sensor - not sure if this is relevant but the car didn't display any erratic running when cold previously!
Thank you in advance.

stevensdrs

3,212 posts

201 months

Wednesday 18th July 2012
quotequote all
Temperature sensor would be the first thing I would check.

willibum

Original Poster:

81 posts

200 months

Wednesday 18th July 2012
quotequote all
I suppose that although it has a new temperature sensor fitted it could be faulty which I presume can only be verified if I put another new one on it after I have checked that the wiring / plug is connected correctly. It would seem that this could be a possibility as the car was running fine previously to this being changed (the old one was broken and glued on by a previous owner / garage - hence having to replace it!!)