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Scion tC 1G Forced Induction Turbo and supercharger applications...

little help with afr plz

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Old 10-17-2009, 01:27 AM
  #41  
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so wait before u said h were at 16 at idle. now ur at 13-13.8? u musta done somthing to fix w.e was makeing u lean out?
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Old 10-17-2009, 01:34 AM
  #42  
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Originally Posted by ElevationTC
well, he said urs was idling rich.. and now this is lean.

this tune on a fresh restart will idle perfect.. (meaning disconnect of bat) fuel trims are 0
same thing was going on with HIX that i tuned...ended up being his wireing harness was miswired. first start up it ran rich and then it started running lean, i was able to get him at 14's for a second then it started running a little rich but not too bad. Then his boost was kinda freaky, had lots of ideas as to what it was but nothing seemed to calm it down. his car would jerk and shudder and then clear up like nothing happend (in middle of boosting)

you got to keep in mind that it almost doesnt even matter what you put in the fuel map under closed loop cause the ecu will side with what the 02 map says.(thats assuming the fuel map isnt soo far off that the car will not start)..that is as soon as the 02 warms up and ecu gets fuel trim info. with that being said if the car has been warmed up and idle for a few min and if the 02 map has a value of 3. something it will be in the 14's (well hover around ther. yes he will get codes because of the fuel trims being out of wack if the 02 map isnt jiveing with the fuel map. I know whats in that map i gave him and im sure its very close to what you gave him aswell, thats why i said what i did.

iv used the same map for others local to me and they started up a tad rich (13's depending on temps, ecu cleared, ect) but sure enough as soon as the 02 warms up its game on with 14.7 afr's (close to). its been tried and proven. However depending on turbo and injectors the boost areas are going to need tweeking.

but alas this is exactly why i hate giving out maps, if anything happens im blamed for it even though later they find out it was an install issue, crossed wires, bad sensor, faulty parts, loose hoses, ect. Not to mention i do this stuff for free (well in HIX case he payed for my gas, he lives in a land of far far away...lol)

Mike i mean nothing by this bro, im just frustrated.
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Old 10-17-2009, 01:36 AM
  #43  
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Originally Posted by 2008SciontC
im still checking things i have never stalled or anything even when i drove it right now the afr is a 13-13.8 at idle. It really sucks cuz i was going to get tuned today now i gotta w8 a week ugh. I pulled the plugs once more after cleaning the old ones off and there fine now so ill just leave that for right now while i check over things. Again thank all of you for your info/tips/help. and not ripping me to bits lol
we all are here to help bro.
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Old 10-17-2009, 01:41 AM
  #44  
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No prob.. no prob at all glad we got you on a basemap! And when it comes time to tune your tuner will be very impressed that you are so close to were you need to be Make sure they give you a discount for 98% of work being done!
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Old 10-17-2009, 02:51 AM
  #45  
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Where did you learn to tune Elevation? Practice practice practice? lol
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Old 10-18-2009, 12:45 AM
  #46  
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hey man any updates???
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Old 10-18-2009, 01:13 AM
  #47  
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where you able to datalog anything? it would help mike and the rest of us figure it out. If need be call me and ill walk you through setting up the fic for datalogging. 832-496-0981
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Old 10-18-2009, 01:58 AM
  #48  
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i already know the map that he is idleign 13.2 or w.e that map is for bigger injector's.... the map mike sent him is for the 550cc injector's... if it dont work u have a vaccum leak. i had ur same problem. no lie's
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Old 10-22-2009, 04:57 PM
  #49  
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well little update I just droped the car off at the tuners and if all go's well ill post the dyno sheet early next week. I did fix a bad leak on the short IC piping that TT messed up. Its was fine driving there an it was a 45min drive zero stalling. and when i was there he had a brand new vette that just got a supercharger / full exhaust installed that thing was a monster owner should have just bought a ZR1 tho lol

Last edited by 2008SciontC; 10-22-2009 at 06:27 PM.
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Old 10-23-2009, 04:22 PM
  #50  
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Well my tuner called me today he's going to fix that bad leak between the downpipe and spipe and a few other TT fitment fails. Ugh the bill keeps growing lol
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Old 10-24-2009, 02:52 AM
  #51  
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get it all fixed then try that basemap
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