Idle issues on Ecutek - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Bobster · 08-02-2017, 09:17 PM

Hi,

My car was boosted last month and I am getting a few idle issues and wondering if the community can help.

Issue 1
When the cars is cold I would be driving and coming to a stop (clutch normally engaged) the rpm's will drop and engine would stall. Normally only happens once or twice and when the cars warm its ok.

Issue 2
When cars idling it will lean every so often causing the Revs to drop to 500 rpm and bounce back to normal.

Any idea's what is happening??

steve99 · 08-02-2017, 11:36 PM

Check your LTFT at idle and low rpm if its over say 10% you may have intake or exhaust leak if its over 10 %

Might be a speed density tune

increase the rpm in the overrun fuel resume table at coolant temps above 140F , by 100 or 200 rpm , stock is 1300 try 1400 or 1500

increase base idle by 50 or 100 rpm

adjust idle stability tables MAP

08-02-2017, 09:17 PM	#1
Bobster Member Join Date: Apr 2016 Drives: GT86 GTS Location: Sydney Posts: 94 Thanks: 13 Thanked 24 Times in 18 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Idle issues on Ecutek Hi, My car was boosted last month and I am getting a few idle issues and wondering if the community can help. Issue 1 When the cars is cold I would be driving and coming to a stop (clutch normally engaged) the rpm's will drop and engine would stall. Normally only happens once or twice and when the cars warm its ok. Issue 2 When cars idling it will lean every so often causing the Revs to drop to 500 rpm and bounce back to normal. Any idea's what is happening??

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08-02-2017, 11:36 PM	#2
steve99 Banned Join Date: Dec 2013 Drives: FT86 Location: Australia Posts: 7,998 Thanks: 1,035 Thanked 4,987 Times in 2,981 Posts Mentioned: 598 Post(s) Tagged: 2 Thread(s)	Check your LTFT at idle and low rpm if its over say 10% you may have intake or exhaust leak if its over 10 % Might be a speed density tune increase the rpm in the overrun fuel resume table at coolant temps above 140F , by 100 or 200 rpm , stock is 1300 try 1400 or 1500 increase base idle by 50 or 100 rpm adjust idle stability tables MAP

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