[urq] Engine Warmup Operation

Louis-Alain Richard laraa at sympatico.ca
Mon Jan 30 11:23:53 EST 2006



>    I take it that the idle speed should be constant during warmup, say
> somewhere between 850 & 1000 RPM? 

On my stock WX, that is correct. Exterior temperature can be as low as -15C
or as high as +30C, startup idle speed is always the same.

It doesn't ramp up to ~1500 for a short
> period like most EFI systems and then drop back to 850?

No. However, I found that the idle speed is not perfectly stable. If the
engine is very hot, idle speed will go up a bit for a few minutes. It seems
to be temperature related (underhood temperature, that is). 

Louis-Alain
Montreal



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