95yrs 318 is

[cmwong369]

Dear all :

i ,m a new hand on BMW, i bought 318is in one week... but some problems happen,, would u help me.. i change new idle controller and knock sensor... but also no change rpm on cold condition.. around 850 rpm... is the o2 sensor broke or other... Thank,s a lot !!!:bawling:

[E36 Phantom]

Hello, and welcome to the 'Fest.

So what exactly happens? The car idles at 850 RPMs? And this is when the engine is cold, right?

The O2 sensor would not affect this at all. If it is steady at 850 RPMs when it is cold, it is supposed to do that to help bring the engine to operating temperature faster. It doesn't sound like you have a problem.

[cmwong369]

Dear E36 Phantom:

Thank,s your reply.... u means engine no problem ! thankyou !!!


best regard !

ming

[E36 Phantom]

Ming,
Yes, if your engine is at 850 RPM when cold, but drops down to 500-600 when at normal temperature, then your engine has no problem at all.
-Chad

[B/\/\W]

500-600 is a little low for a 4 cylinder! Should be 850 when warm, around 950-1050 for the first minute or two after startup.