Running Lean on Turbo
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Running Lean on Turbo
Guys, I installed my turbo a few weeks ago and my fuel ratio is still lean...well before I installed the turbo i ran lean anyway. i would only read stoich when i accelerated...i cleaned the injectors...i use either 93 or 94 octane and still read lean. The problem is...i can't seem to get a stoich reading at idle...when i drive or there is load on the engine i get a mixture of lean and stoich but never just stoich...and when i do get that mixture of lan and stoich the gauge is fully reading lean and just has 3 bars on stoich....what could this be...how can I fix it...will this affect my turbo...i mean i boost fine but I don't want to blow my motor up...help
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Re: Running Lean on Turbo (incognitoracerr)
Maybe your a/f gauge is hooked up wrong or a bad power and/or ground. Don't use the stereo wires to hook it up because it will give bad readings. When I did I get a wide reading (more LED's lit up at a time). When I hooked it up with its own power and better ground, it gave a more narrower reading (less LED's and seem to be more steady) and it finally read into the rich area at WOT, too.
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Re: Running Lean on Turbo (93dx--hatch)
I used gauge wires and I adavanced my timing from 16 degrees to 18. I guess I have to buy some injectors to see what happens next...the gauge is connected fine...the groud is independent and the positive it right on a fuse...i'll keep you guys updated...thanks...let me know of any other ideas...
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Re: Running Lean on Turbo (incognitoracerr)
well i dont think you should have advanced your timing, and are you using an autometer a/f gauge? you should really get an EGT gauge. also upgrade the injectors. are you using an FMU??
[Modified by 00si5, 1:11 PM 4/3/2003]
[Modified by 00si5, 1:11 PM 4/3/2003]
#11
Re: Running Lean on Turbo (incognitoracerr)
i advanced the timing for a little more power...yeah i am using autometer air/fuel gauge...
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Re: Running Lean on Turbo (boosted92)
Yeah I don't think there is any point in the light show...lol...im new to turbo so hold yourself when i ask...whats a wideband o2?
#13
Re: Running Lean on Turbo (incognitoracerr)
wideband is not just for turbo, its for all tuning apps. it is like your stock O2 sensor except it reads a wider range of voltage hence wideband...more precise reading and allows for better tuning.
#15
Re: Running Lean on Turbo (incognitoracerr)
i advanced the timing for a little more power...yeah i am using autometer air/fuel gauge...
stock everything...but this has been happening before the turbo setup...and fmu is blue box
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