Jump to content

lexus isf rev drops too low to 500rpm


hhao
 Share

Recommended Posts


Was going to ask the same thing.  Any kind of idle surge, fluctuations in your revs vs dropping to 500 and remaining constant.  Possible vacuum leak?

On my old WRX, i had idle surge, ended up being a blown head gasket but im sure no such thing would happen to such a new ISF.

Link to comment
Share on other sites

i went to dealer for normal service yesterday, and have this issue checked.

mechanic cleaned the throttle , there were some carbon stuck there, now the idle revs comes to 600 rpm, everything is fine:wink3:  

by the way, mechanic explained that maybe my car had been sit in my car park for too long to have the carbon built up.

Link to comment
Share on other sites

12 hours ago, BLK ISF said:

Was going to ask the same thing.  Any kind of idle surge, fluctuations in your revs vs dropping to 500 and remaining constant.  Possible vacuum leak?

On my old WRX, i had idle surge, ended up being a blown head gasket but im sure no such thing would happen to such a new ISF.

mine is just remaining in 500rpm

Link to comment
Share on other sites


On 2016/9/12 at 7:57 AM, Sparky said:

I think mine sits around 600 with no air con on.. Does it sound rough / rough idle at all? Any shaking through the car?

 

Lucky man / lady by the way, 2014 model :yahoo:

no shaking, have the car checked, problem cause by carbon built in throttle, everyhing is all good now.   im a man by the way

Link to comment
Share on other sites

  • 4 weeks later...

This is standard for the ISF it seems, it is not a fault. I suspect it may be for fuel economy/emissions reasons, to set the idle rpm as low as possible. I agree, in reality it is too low and a bit annoying but you can overcome it by turning on any source of electrical drain such as headlights/sidelights, window demister, A/C, etc...  or put it in Neutral :)

Link to comment
Share on other sites

Have a look on utube most idle at 700 mine sits at 700, if it isn't a problem don't worry go out and flog the date out of it.This is good advice trust me i am a mechanic cheers.

Link to comment
Share on other sites

  • 3 weeks later...

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
 Share




×
×
  • Create New...




Forums


News


Membership