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Old 02-18-2001, 01:14 AM   #1
slidewaysmike
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Member#: 3517
Join Date: Jan 2001
Location: Ohio
Vehicle:
2005 Legacy GT
Silver

Question Need advice about richness...

I got my RS about a month and a half ago, and right off the bat I noticed alot of black residue on my exhaust tip. Ok, so it runs a little rich.
But lately I have also noticed a decline in my mileage, and it seems like there is even more residue.
Without having to spend $400 dollars on an aftermarket gizmo, does anyone have any ideas about how I could lean it out a little?
Hopefully without risking going too lean?

Mike

P.S. Could a faulty O2 sensor be the culprit?

[This message has been edited by slidewaysmike (edited February 18, 2001).]
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Old 02-18-2001, 01:51 AM   #2
AaronB
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Hey Mike,

Have you reset your ECU? If not you may want to give it a shot. It might help (at least temporarily).

Aaron
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Old 02-18-2001, 03:07 PM   #3
HondaH8er
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Lightbulb

Could be the O2, but I think those usually throw the CE light. Just have you dealer run your VIN, and see if your car is affected by the O2 sensor recall. And an ECU reset sure couldn't hurt, either. Besides that, I've heard that the MY0x cars all run a little rich, and adding an AFC only helps for a little while, and then the ECU learns the new setting, and compensates for them, basicly bypassing the AFC. So an AFC sounds like it would only be a temp fix, anyways. There was recently a topic posted about this, if you want to do a search.
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Old 02-18-2001, 04:25 PM   #4
slidewaysmike
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2005 Legacy GT
Silver

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Thanks, I will try resetting my ECu and see if that helps.

Mike
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