[Yvette]

just wondering, noticeably low these days,
it's below 1k, usually 500-700 is it normal?

[tIANCi]

Mine is at about 700rpm.

[Route 16]

me too.

[melloww22]

should cold start at 800-1100 and settle between 500 & 700

[Surly73]

I think that AC and electrical loads can affect this. With AC on it's traditionally higher, and I think I see a 100rpm increase with the AC on (I'll try to remember to look again).

AC off idle for my 328 seems to be about 600. For 60 seconds after start it's anywhere from 750-1000, often rough, occasionally shuttering, bouncing around a little. On one hand lots of people seem to say "they all do that", and my dad's brand new 535 does this. On the other, I'm still going to try to improve the cold start roughness and idle starting with new plugs.

[Route 16]

Originally Posted by Surly73

I think that AC and electrical loads can affect this. With AC on it's traditionally higher, and I think I see a 100rpm increase with the AC on (I'll try to remember to look again).

AC off idle for my 328 seems to be about 600. For 60 seconds after start it's anywhere from 750-1000, often rough, occasionally shuttering, bouncing around a little. On one hand lots of people seem to say "they all do that", and my dad's brand new 535 does this. On the other, I'm still going to try to improve the cold start roughness and idle starting with new plugs.

new sparks plugs, coil packs should do the trick...so I've read on the forums. I also want to lessen cold start needle rapid bounce.

[Surly73]

Originally Posted by Yo-Hi.Red.Devil

new sparks plugs, coil packs should do the trick...so I've read on the forums. I also want to lessen cold start needle rapid bounce.

Yeah, I already have plugs but they're not in my hands yet. Coils are expensive enough that I'm not just going to blindly buy 6 new ones for giggles. I may buy one to use for troubleshooting along with my K+DCAN cable to see if there's any misfire shadow codes. The car runs really well so I don't feel the need to go overboard but 60k mi/100k km on the original plugs is enough for me to change them as normal maintenance.

[DESI4life10]

Originally Posted by Surly73

I think that AC and electrical loads can affect this. With AC on it's traditionally higher, and I think I see a 100rpm increase with the AC on (I'll try to remember to look again).

AC off idle for my 328 seems to be about 600. For 60 seconds after start it's anywhere from 750-1000, often rough, occasionally shuttering, bouncing around a little. On one hand lots of people seem to say "they all do that", and my dad's brand new 535 does this. On the other, I'm still going to try to improve the cold start roughness and idle starting with new plugs.

I get this too on a cold start. Not aggressive but I can feel the car have a slight shake while it is starting to warm up and the needle fluctuates here and there. I do have new spark plugs that I can install, but coils are a little over the top for me as well since they don't come cheap.

[Meeni]

800 cold, 600 warm