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Aug 21, 2009, 10:48 PM
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#1
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Newbie
Personal Sales Rating: ( 0)
Join Date: Jun 2009
Location: Eugene & Tokyo
Posts: 2
Drives: 2005 EVO RS
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05' RS "Service Engine Soon" Light Flashing When Boost Spikes, Not Solid.
Long time reader, first time poster
So, I have noticed that under full throttle in certain situations, when the boost spikes, i get the "service engine soon" light flash a few times and then stay off. my car is stock except a downpipe and exhaust. The ECU was flashed by English Racing, called and emailed them but got no answer. Doesn't feel like boost cut because it is not harsh, sounds normal. I am worried about detonation or knock. I also don't want to take it to the dealer for fear of re-flash to stock. This happens a few times a week when I get on the throttle and bothers me to no end.
Any ideas? Thanks!
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Aug 21, 2009, 10:56 PM
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#2
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Evolving Member
Personal Sales Rating: ( 8)
2006 Mitsubishi Lancer Evolution
Join Date: Aug 2007
Location: Spring Lake, NC // VBC, Iraq
Posts: 358
Drives: GG IX MR, '09 Toyota Yaris ONYX Edition
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Tephra's flash CEL on knock mod. Might not be anything serious, but sounds like it's just warning you about detonation.
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XBL GT: Zero Mils
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Aug 21, 2009, 11:18 PM
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#3
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Newbie
Personal Sales Rating: ( 0)
Join Date: Jun 2009
Location: Eugene & Tokyo
Posts: 2
Drives: 2005 EVO RS
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thanks! i found the information i was looking for. i didn't know the technical term for the mod.
i assume some knock is normal. the CEL is flashing 3 times slowly, so depending on how they flashed it, it may not be a big deal? you would think english racing would have called back if they wanted my money for a re-tune. oh well...
i may try a small race fuel mix and see what happens...
anyone had a similar experience they fixed without a re-tune? i understand finding the sweet spot is hard without proper tuning.
Last edited by AoyamaJPN; Aug 21, 2009 at 11:32 PM.
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Aug 23, 2009, 03:10 PM
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#4
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Evolved Member
Personal Sales Rating: ( 25)
2003 Mitsubishi Lancer Evolution
Join Date: Jun 2006
Location: CT
Posts: 1,652
Drives: 2003 EVO-2002 WRX-2003 R6 (sold) :(
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if it does it every once and awhile then you are fine, if it happens every time you go into boost then you need a retune
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Rally Red Evolution 8
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Aug 23, 2009, 06:02 PM
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#5
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Evolving Member
Personal Sales Rating: ( 7)
Join Date: Jul 2008
Location: vancouver wa
Posts: 150
Drives: evo IX MR
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Quote:
Originally Posted by olmoscd
Tephra's flash CEL on knock mod. Might not be anything serious, but sounds like it's just warning you about detonation.
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This is correct. Do you know who the previous owner was?
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Aug 24, 2009, 12:37 AM
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#6
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Evolving Member
Personal Sales Rating: ( 1)
Join Date: Sep 2008
Location: Peru
Posts: 143
Drives: Evo VII , Ferrari modena , jeep srt8, CR 250
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buy yourself a knock sensor
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Mods:
Motec M800
Cusco coilovers
Complete roll over racing cage
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Green Turbo
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Aug 24, 2009, 01:00 AM
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#7
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Silver Sponsor
Personal Sales Rating: ( 4)
Join Date: Sep 2007
Location: Hayward
Posts: 1,885
Drives: EVO, STI
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Quote:
Originally Posted by kemoly
buy yourself a knock sensor
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??
All evos have a knock sensor from the factory and that is what the knock light mod is referencing....
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Tags
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18, blinking, blinks, check, engine, evo, flashing, light, ligth, rs, service, solid, stays, times, warning  |
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