Engine Idle... Is this normal? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Premium 615 · 08-27-2015, 02:47 PM

Just wanted to say I've already did a

and didn't get anything on my question. Seems that option doesn't work for the Galaxy Note II or tablet.

So...

I was just at Walgreen's picking up some prescriptions through the drive thru and noticed that the RPMs were dropping to 500 (sounded like it was going to stall) while the car was in park then rebounding to 800-850 kinda like a slow pulsing.

I hadn't noticed it before but then again with 2300+ miles on the car I hadn't got a lot of seat time.

Is that normal behavior? Is it correctable?

Tank · 08-27-2015, 03:14 PM

http://www.ft86club.com/forums/showthread.php?t=11587

#2 (& #6?) on that list?

Bergen23 · 08-27-2015, 04:16 PM

Very normal. Get used to it.

Premium 615 · 08-27-2015, 04:26 PM

Thanks Tank.

I subbed into the threads so I can get any updates from other members.

yomny · 08-27-2015, 04:45 PM

Just one of the variants of the idle dip, hunting idle we have, normal lol. Mine did it when I had the AC on and coming to a stop in neutral, the rpm's would drop to a near stall then shoot back up to about 900 to stabilize at their usual 600 or so. No dealer reflash has been able to correct this, not even an aftermarket reflash. The majority of us have a higher idle and this helps compensate. Not sure what causes this but maybe load and the ecu not compensating before the change.

humfrz · 08-28-2015, 01:47 AM

Quote:

Originally Posted by yomny

Just one of the variants of the idle dip, hunting idle we have, normal lol. Mine did it when I had the AC on and coming to a stop in neutral, the rpm's would drop to a near stall then shoot back up to about 900 to stabilize at their usual 600 or so. No dealer reflash has been able to correct this, not even an aftermarket reflash. The majority of us have a higher idle and this helps compensate. Not sure what causes this but maybe load and the ecu not compensating before the change.

My guess is that your car's AC compressor is turning on and off.

humfrz

08-27-2015, 04:45 PM	#5
yomny Senior Member Join Date: Jul 2012 Drives: 2013 FRS Whiteout Location: MIA Posts: 1,545 Thanks: 557 Thanked 469 Times in 340 Posts Mentioned: 33 Post(s) Tagged: 5 Thread(s)	Just one of the variants of the idle dip, hunting idle we have, normal lol. Mine did it when I had the AC on and coming to a stop in neutral, the rpm's would drop to a near stall then shoot back up to about 900 to stabilize at their usual 600 or so. No dealer reflash has been able to correct this, not even an aftermarket reflash. The majority of us have a higher idle and this helps compensate. Not sure what causes this but maybe load and the ecu not compensating before the change. __________________ GTX2867R, moto-tuned , tomei op , motiv fp , Invidia Q300 ti , Rota titan 17x9 +42 , nt555 255/40 , ST coilovers w/cascam , Hotchkis sways

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08-27-2015, 03:14 PM	#2
Tank Mumbler Join Date: Mar 2014 Drives: Sensibly Location: Maryland Posts: 129 Thanks: 26 Thanked 80 Times in 51 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	http://www.ft86club.com/forums/showthread.php?t=11587 #2 (& #6?) on that list?

08-27-2015, 04:16 PM	#3
Bergen23 Banned Join Date: Dec 2014 Drives: '15 Halo FR-S Location: Ontario, Canada Posts: 1,317 Thanks: 922 Thanked 950 Times in 492 Posts Mentioned: 22 Post(s) Tagged: 0 Thread(s)	Very normal. Get used to it.

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