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Old 06-09-2012, 09:12 PM   #1
yayforaddison
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Idle issue?

I only have about 170ish miles on my FRS, but lately, at a few lights or under deceleration while clutch is pushed all the way to the floor, the RPMs have dropped below 500 (maybe even 400), and the car shakes for a second or two as if it wants to stall, then bounces back up to about 900-1000 RPMs before going back to the normal 700ish. Could this be part of the break-in period? Computer still learning? Normal for boxer engines?

I wasn't worried about it the first time or two, but it happened again today on my way to a car meet. Today was roughly the 5th or 6th time.

I am a bit stumped

edit:

Those having this issue, I suggest at least calling Scion and reporting the problem, if not just bring it into the dealer. This issue is still very new to them.
There are plenty of us on here having this issue, and the sooner we report it, the sooner the ball will get rolling.

Here is the number if you plan on calling 1-866-707-2466
Make sure you have your vin and miles on hand when you call!

Last edited by yayforaddison; 06-13-2012 at 09:31 AM.
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Old 06-09-2012, 09:15 PM   #2
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bad fuel?

Boxer engines act just like any other engine and should actually run smoother
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Old 06-09-2012, 09:20 PM   #3
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I recall that happening to me a few times as well. But so far since my trip to Vegas it hasn't done it. I guess continue breaking it in and see what happens. I think I'm at around 760 miles now?
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Old 06-09-2012, 09:23 PM   #4
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bad fuel?

Boxer engines act just like any other engine and should actually run smoother
Hmmm didn't think of that. I am 99% sure it was premium from the dealer when hey filled it up. They told me about 3 times to make sure I only put premium as if I knew nothing about cars. Could just be bad gas in general tho. I'll cross my fingers.
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Old 06-09-2012, 09:25 PM   #5
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Quote:
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I recall that happening to me a few times as well. But so far since my trip to Vegas it hasn't done it. I guess continue breaking it in and see what happens. I think I'm at around 760 miles now?
Hmmm sounds like it is part of the break-in right there. Shew.
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Old 06-09-2012, 09:30 PM   #6
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Is the AC on? It could be the compressor kicking in.
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Old 06-09-2012, 09:31 PM   #7
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Is the AC on? It could be the compressor kicking in.
Off or on I've noticed it.
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Old 06-09-2012, 09:37 PM   #8
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Not all dealers do use premium. I havent gotten mine yet but i do know my dealer only has 87.

My fr-s is MT so im expecting the same thing
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Old 06-09-2012, 09:41 PM   #9
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Not all dealers do use premium. I havent gotten mine yet but i do know my dealer only has 87.

My fr-s is MT so im expecting the same thing
Mine went across the street to the gas station. I was there when they walked in for the card.

Try and have them do the same for yours. The car takes premium only, and isn't good for the car to take anything under.
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Old 06-09-2012, 09:43 PM   #10
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i have confirmed that the dealer where I bought my car from puts regular gas on all toyotas and midgrade gas on all lexus vehicles. Lexus vehicles required premium.
regular gas must be even worse for the fr-s since they ask for 93 on the manual
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Old 06-09-2012, 10:16 PM   #11
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I have had this happen as well. It was on the first tank of gas from the dealer. I'll keep my eye on it since I've now filled up with premium.
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Old 06-09-2012, 10:38 PM   #12
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I don't think premium or regular would make a difference.
At idle there is no load on the engine and the higher or lower octane won't matter at all.
I think maybe it's the ECU still learning the idle.. hopefully it is.
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Old 06-09-2012, 10:40 PM   #13
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Mine's doing the same thing, been doing it from 12km to now 212km!
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Old 06-09-2012, 10:46 PM   #14
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Hmmmmm. Hope its just the ECU learning some stuff.
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