Thread: C30 Engine : - Rough idle when cold
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Old Feb 13th, 2023, 15:44   #2
Clan
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Originally Posted by pphilpot View Post
Hi all - I bought a 1.6D2 (D4162T) last week, and its idle is lumpy when cold, for about 30 seconds to a minute, but then fine once a little warmed up.

I plugged in my DiCE and ran Vida and no faults are stored - which is good and bad. Good as there are no faults stored, and bad as I have no idea where to start

I searched around on here, and saw a recent thread about testing glow plugs, and all 4 of my measure at 2.2 ohms, with my multimeter leads measuring 0.2 ohms. I guess this means that they are okay...?

The car is high-milage at 155,000 miles, and has had an injector replaced recently (ish) (I assume as it's cleaner then the other three).

Any pointers as to what to check/clean to move down a list of things to tick off to try to solve this?

Many thanks for any help in advance!

Paul
There was a fix for these symptoms around 2014 about injector calibrating whilst driving, Your dealer should know about it. Have you got the latest software? There could be some smoke too, have you noticed?
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