Jump to content


Photo

Low and surging idle


  • Please log in to reply
7 replies to this topic

#1 Chaapppppp

Chaapppppp

    New Member

  • Members
  • Pip
  • 24 posts

Posted 14 November 2018 - 08:07 PM

Hi,i have a '97 rs legacy twin turbo.
Idle is very low and surges, sometimes car stalls when stopped.

I have:

Cleaned iacv
Cleaned throttle plate/intake
Reset ecu by disconnecting battery

Anyone have any suggestions?

#2 El_Freddo

El_Freddo

    Rock'n the old Skool

  • Members
  • PipPipPip
  • 1,344 posts
  • Gender:Male
  • Location:Bendigo/Benders/Central Vic/part nomad
  • Interests:Subarus, 4wd'n Subarus, travelling Subarus, Tinkering... I could go on!

Posted 14 November 2018 - 10:11 PM

Got any codes?

Also cleaning the contact points on the throttle position sensor could be worth the effort. Then re-adjust the tps’s setting following the workshop manual.

Thermo fans on all the time? If so, temp sensor is dead ;)

Cheers

Bennie
"The lounge room is not a workshop..."
https://www.imageshack.us/i/po1BKrxbj
1BKrxb.jpg
El Freddo's Pics    -    El_Freddo's youtube

#3 Chaapppppp

Chaapppppp

    New Member

  • Members
  • Pip
  • 24 posts

Posted 15 November 2018 - 03:04 PM

No codes, however i disconnected maf sensor while car was running and it didn't die🤔
Does this mean maf is bad?
Thermo fans are all good.
Thanks

#4 podmak

podmak

    New Member

  • Members
  • Pip
  • 92 posts
  • Gender:Male

Posted 22 November 2018 - 08:53 PM

You guys have a workshop manual for gen2 twin turbo? Would you share please?

gallery_5378_147_9927.png


#5 Chaapppppp

Chaapppppp

    New Member

  • Members
  • Pip
  • 24 posts

Posted 24 November 2018 - 06:54 AM

Not the maf, only have a haynes hard copy i bought from super cheap auto bro.

#6 Ads

Ads

    New Member

  • Members
  • Pip
  • 88 posts
  • Gender:Male
  • Location:Sydney

Posted 24 November 2018 - 07:39 AM

Checked plugs? I had the same symptoms intermittently up to the point where it wouldn't even start. Turned out to be fuel fouled plugs from running rich, possibly due to an injector issue (stuck or clogged). Surprised you are not getting any codes though..



#7 Chaapppppp

Chaapppppp

    New Member

  • Members
  • Pip
  • 24 posts

Posted 26 November 2018 - 12:48 PM

Starts fine, haven't checked plugs but they were replaced 6 months ago though

#8 Chaapppppp

Chaapppppp

    New Member

  • Members
  • Pip
  • 24 posts

Posted 27 December 2018 - 06:22 PM

All sorted, did timing belt etc and now idles mint as👍




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users