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Old 03-17-2003, 11:17 AM   #1
Hozay
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04 Impreza WRX STi
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Default Car rich, hotter plugs?

Been reading NGK's website and they recommend that if your plugs have carbon to switch to a hotter plug.

Solution to overly rich RS00 is a hotter plug?

looking for input
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Last edited by Hozay; 03-17-2003 at 11:25 AM.
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Old 03-17-2003, 12:07 PM   #2
HndaTch627
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not going to fix the fact that the fuel maps are just pig rich. don't waste your time trying to correct the manufacturers mistakes in programming via spark plugs

remap the ECU
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Old 03-17-2003, 05:48 PM   #3
danci1973
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Quote:
Originally posted by HndaTch627
not going to fix the fact that the fuel maps are just pig rich. don't waste your time trying to correct the manufacturers mistakes in programming via spark plugs

remap the ECU
Is this something someone could do alone? Cause the dealerships in my country don't know about ECU remapping...

I do have access to some electronics tools like EPROM, EEPROM, FLASH, ... readers/writers... But I've never opened a Subaru ECU and don't know what's in there.

D.
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Old 03-18-2003, 03:53 AM   #4
HndaTch627
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no because you need to know what code it's written in. There's a guy in Canada who does it and a company in Japan, take your pick
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Old 03-19-2003, 11:27 AM   #5
Pocon
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Silverthorn Metallic

Default Japanese Automotive

Yoshio is the man.

He's knows how to reprogram ECUs. He street tuned my RS last week. Check his site out.

With regards to running rich, it could be one of your sensorsgoing wacko. Also, once NGK plugs get carbon, there done. They cannot be cleaned or burnt up like other plug manufacturers. If any, move to the denso iridium plugs. They are more money too.
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Old 03-20-2003, 10:04 AM   #6
danci1973
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Quote:
Originally posted by HndaTch627
no because you need to know what code it's written in. There's a guy in Canada who does it and a company in Japan, take your pick
Haha, I wish at least one of them would be less than 5000 miles away!

D.
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Old 03-25-2003, 01:45 PM   #7
svxr8dr
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I say you should get the irdiums like your really kewl friend back in the pacific NW has
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