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Old 11-10-2005, 10:17 PM   #1
Sharky NRK
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Join Date: Nov 2002
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Location: Hutto, TX
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2003 WRX
WRB

Default UTEC tuning issues need help asap

ok so I have some issues. I had one CEL last night a P0037 that is always there (reason I have the CEL turned off by the UTEC), this morning the the car hard started for some reason, stopped and tried to restart it and it fired up. When I scanned it I had a misfire code on all cylinders (P0301-4). Can a hard start like that trip the misfire code? I cleared the code and drove around going WOT a few times and scanned it again and only a pending P0037?

I am also having knock issues at extremely low load sites like pulling away from a stoplight. The CEL will flash at me and sometimes it will record a knock count on the UTEC and sometimes it won't. I have modified the TXS stage 4 basemap to get me 11.0 AFR (on a wideband) in the higher (60-100) load sites and added fuel to the lower (10-50) load sites of the UTEC map to keep the AFR around 12.5 to keep them from being too lean and to aid spool time. Any idea why this is as I have only gotten no knock counts when getting on WOT but 4 knock counts at these low load sites

HELP!!!!!!!!!!!!!!!
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Old 11-11-2005, 12:57 AM   #2
Gethin
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post all of your mods, and post a number 1 log.
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Old 11-11-2005, 01:40 PM   #3
Sharky NRK
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tbe, upipe, i/c hoses, vf39, walbro, modded stockers, turbosmart bov, mbc, gfb pullies, utec

I have logs but not one of the low load knock event I will try and get one tonight
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Old 11-11-2005, 02:29 PM   #4
hippy
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A lightened crank pulley can cause the utec to detect knock at low load, and the ecu to detect misfire(from what I've heard). If you want to solve your cel issues, you might wanna switch the crank pulley back to stock.

peace
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Old 11-11-2005, 02:39 PM   #5
Sharky NRK
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yeah sure enough got those pesky little codes today at startup again, I can live with the codes as long as there is a reason for them (correct that an unharmful reason), the response is so much better with the crank pulley that a few codes at startup don't worry me, but want to make sure this is really the reason for it

thanks for the response and idea can anyone else confirm this or provide another answer
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Old 11-11-2005, 04:05 PM   #6
OMEGA SUPREME
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I have a lightened crank pulley and have no problems. You may want to consult a good Utec tuner. Sounds like it could be a timing problem. Have you retarded the timing at all?
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Old 11-11-2005, 05:23 PM   #7
Sharky NRK
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no stock timing from the txs base map, still trying to get the fuel completely dialed in, haven't touched the timing
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