10th Honda Civic Forum banner

1 - 5 of 5 Posts

·
Registered
Joined
·
1 Posts
Discussion Starter #1
Hi,

I've owned my 2017 Si for a couple of months and had a question regarding cold start idle rpm's.
During the summer when it's warm outside the car always starts and idles at 1700 rpm for about 30 seconds then starts to work its way to 700 RPM as it warms up. We recently had a cold snap where the outside temp dropped to 33F. When I cold start the vehicle at this temp the RPM's go to 2000 rpm for about five second then drop to 1700 rpm and continue to work down to 700 rpm as in the summer. My questions: Is this normal? I would not think you would want rpm's that high when it gets really cold outside. I'm used cars cold starting in the 1300-1500 rpm range.
Thanks.
 

·
Registered
Joined
·
88 Posts
You are still on the FF semi-synthetic. I noticed 2000 RPM startups (slightly over) too but when I changed to the Honda Full at 5800 miles, it starts at the 1700 rpm and works down, just like yours. I would say give it some miles and wait until you get the FF out before you figure out.
 

·
Registered
Joined
·
3 Posts
I have this problem as well. I noticed it after I got my magnaflow exhaust installed. However it could have been doing this the whole time and I’m just noticing now.
You are still on the FF semi-synthetic. I noticed 2000 RPM startups (slightly over) too but when I changed to the Honda Full at 5800 miles, it starts at the 1700 rpm and works down, just like yours. I would say give it some miles and wait until you get the FF out before you figure out.
I have this problem on my si . I noticed it after I swapped exhausts on my 2019 Or maybe it was happening the whole time I’m not sure and didn’t notice. I’ve noticed it for about a month now. Is this bad??
 

·
Registered
Joined
·
1 Posts
It takes longer for the engine to go from the opened loop when it’s colder to the closed loop which is controlled by the ECU.
 
1 - 5 of 5 Posts
Top