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Old 08-04-2022, 01:16 PM   #17
NoHaveMSG
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Garage
Quote:
Originally Posted by Stonehorsw View Post
Hi,
Car is with 4900 miles, oil changed at ~1300 miles.

Background: This week the car started feeling gutless, specially on low rpm. Less power than my 18 Brz, not able to break traction even in turns.

Did not hear any knocking event or any type of other engine noise that would call my attention.

What I am suspecting: bad fuel quality (filled with 93 from Kroeger this time)

Question: How do I diagnose if this is related to the fuel? Any other had similar reduction of power/torque?
I have had this happen on my 13' multiple times since you can't pump your own gas in OR, they put 87 in. You can see it if you have a way to look at your IAM in real time, I use my OFT to check, usually drops IAM down to .4ish, so only giving you 40%(all other factors removed) of your base timing. Seriously feels like you are down 20+whp, throttle response sluggish.
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