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

"SYSTEM TOO RICH" help diagnose..

Old Oct 19, 2009 | 07:55 PM
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Default "SYSTEM TOO RICH" help diagnose..

well today my car started driving funny then i got a check engine light, SYSTEM TOO RICH

my thoughts....

non recirculated bov and it being too loosely adjusted, i say this because itll open even when im cruising around 20 vac and let off

the car doesnt stall when i stop but the rpms do drop to about 500 and jump back up past 1k and then settle at 650


only things ive done lately since installing the kit was get the new bov and have not adjusted it perfect....and also i put 1 step colder copper plugs with a .028 gap, i think i might raise the gap to .032
Old Oct 19, 2009 | 08:09 PM
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do you have afr gauge ? what was the reading ?
Old Oct 19, 2009 | 08:17 PM
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Originally Posted by RusWolf
do you have afr gauge ? what was the reading ?

lol in the process of buying one, everyone one selling one on here doesnt respond to anything ...
Old Oct 19, 2009 | 08:28 PM
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I have a UEGO for sale, $140 shipped and it's yours.
Old Oct 19, 2009 | 08:33 PM
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much left on ur part out?

You could donate something to me
Old Oct 19, 2009 | 08:35 PM
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Donations don't buy me a S/C S2K
Old Oct 19, 2009 | 08:50 PM
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I would also suggest a scan guage....sounds like a bov problem (sticking open sometimes) also its you tune i think...the fuel trims sound out of wac. find out what your fuel trims are and afr's.
Old Oct 19, 2009 | 08:53 PM
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Originally Posted by crush02342002
I would also suggest a scan guage....sounds like a bov problem (sticking open sometimes) also its you tune i think...the fuel trims sound out of wac. find out what your fuel trims are and afr's.
if ima go about checking al that i might as well go front the money now for a FIC and start tuning on my own, then take it to toan at ptuning to finalize my tune cuz i do some pretty nice base tunes
Old Oct 19, 2009 | 08:59 PM
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I forgot your not using engine managment....well this is kinda what happens i guess...but then again i think your bov may still be an issue.
Old Oct 19, 2009 | 09:08 PM
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Originally Posted by crush02342002
I forgot your not using engine managment....well this is kinda what happens i guess...but then again i think your bov may still be an issue.
yea like when im driving around with window down everytime i hit the clutch i can her the bov letting out air, i think ima just tap my intake pipe and put a fitting on it and have my bov recirculate into it
Old Oct 19, 2009 | 09:39 PM
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sometimes the bov still opens even in vacuum when you let off the throttle, it might not be your bov.. just need something to tune, maybe you just need o reset your fuel trims
Old Oct 19, 2009 | 10:22 PM
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^^ thing is iv never gotten that code running without engine managment and stock injectors...i could understand if it was 550cc injectors and no engine managment....i could also understand a maf out of range code.
Old Oct 19, 2009 | 10:24 PM
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if its open while sitting at an idle then yeah youv got bov issues...clutching in like ace said will prolly let the bov open...
Old Oct 19, 2009 | 10:28 PM
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recirc will fix it.............
Old Oct 19, 2009 | 10:32 PM
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gettting tuned will fix it also
Old Oct 19, 2009 | 10:33 PM
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try to reset your ecu and see what happens
Old Oct 19, 2009 | 10:40 PM
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Originally Posted by weezyfbayba
gettting tuned will fix it also

yea lol


for the record by no means and i worrie dbout this code seeing that id rather wash my piston rings rather than blow the piston.. hahaha anyways ill get around to it
Old Oct 19, 2009 | 10:47 PM
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you have to get an afr gauge though.. it may not be as rich as you would think.. i've got rich and lean codes when I dont even notice those, sometimes its just the ecu thinking that way if it goes a bit over your fuel trims
Old Oct 19, 2009 | 11:41 PM
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Originally Posted by Ace83
you have to get an afr gauge though.. it may not be as rich as you would think.. i've got rich and lean codes when I dont even notice those, sometimes its just the ecu thinking that way if it goes a bit over your fuel trims

yea i know i pmed carbon about his gauge...ive been meaning to go to a dyno to see my actual wot afr
Old Oct 20, 2009 | 02:32 AM
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He'll have a wideband by the weekend

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