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Forum Locked*UPDATE* - Rough cold running on M3 E36
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Really Senior Member I
Really Senior Member I


Joined: 23-August-2003
Location: Kildare
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Points: 294 		Direct Link To This Post Posted: 26-August-2003 at 00:36

Hi,

Sounds like CTS (coolant temp seneor). If the CTS or its circuit fails then the ECU will not know that the engine is cold. The ECU defaults to a hot running fuel control map and so it will run poor at lower temps but well at normal temp.

It would be worth your while fitting a CTS first as they are cheap.

 

Alan.
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mansfa View Drop Down
Senior Member I
Senior Member I
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Joined: 13-February-2003
Location: United Kingdom
Status: Offline
Points: 147 		Direct Link To This Post Posted: 22-August-2003 at 11:38
Maybe the (a) coil(s) are shot?

Had a similar problem on a E36 325i, coils are �150 odd each? Cant remember exactly, was a while ago...
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MONO View Drop Down
Really Senior Member II
Really Senior Member II
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Joined: 04-August-2003
Location: United Kingdom
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Points: 560 		Direct Link To This Post Posted: 22-August-2003 at 11:18

Hey Dudes,

I have only had my car for a few weeks now. I have a question about the cold running of my car.

The car starts fine and ticks over okay, when I drive off it seems to be really sluggish. If you push the accelerator too much is starts to splutter and pop a bit as if it is missing. If you back off from the throttle it sorts itself out. (I am going real slow at this point)

Once the temp guage is past the quarter mark it runs fine. Is this normal?? bot worried when the winter comes round that it could get a lot worse!! any ideas.



Edited by MONO
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