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#1
10-03-2007, 10:51 AM
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o2 data help please!
I have a 1990 Tsi AWD and I'm not getting good gas mileage, I think. I only got 250 miles to a full tank. I'm thinking this is a result of my o2 sensor but I wanted to get some advice before I buy a new one. I have a data logger and it seems to reading normal when cruising, jumping around everywhere. But when at WOT it goes to .00v or .02v and freezes there til I let off. I have been told that the reading should be at .75v or higher at WOT. Are there any things that i should check before I buy a new sensor? Or is my sensor just not working? Thanks.
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1993 del sol s 1990 Eagle Talon Tsi Awd 
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#2
10-03-2007, 11:09 AM
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Re: o2 data help please!
At WOT you should be more around .9-1 volt. Change that o2 sensor.
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98 Eclipse GS Turbo Megasquirt 2 - Holset HY35 Turbo - Built motor - P&P Head and Intake - 3" Turbo back - FMIC - Greddy RZ BOV - Walbro 255 - Aeromotive AFPR - 650cc Injectors - Fidanza Flywheel - Zoom clutch - 13" Cobra Front Brakes - AEM WB - Devilsown meth injection - 3.55 Final Drive gear ratio 1981 Chevy Scottsdale 1987 Nissan 300zx - Chump Car 2001 BMW 325i - DD
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#3
10-03-2007, 11:20 AM
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Re: o2 data help please!
I get about 250 miles to a tank on the gsx, but thats with me running real rich. If your car is all stock and you dont drive it hard you should get better gas mileage than that.
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98 Eclipse GSX-EVO3 16G, BC 272's,ETS FMIC and short route piping,TRE Stage 2 tranny, ACT 2100, Walbro 190lph,550cc jectors,SAFC NEO,GM MAFT, AEM UEGO wideband,ported SBR Exhaust Manifold,O2 Dump,EBay Intake,3" megan downpipe and catback exhaust,TurboXS boost controller,HKS BOV,Ebay Short Shifter,Boost Gauge,Symbroski shift kit & shift cable bushings, RRE catch can 94 Talon 1.8L-SOLD 02 Civic EX- Daily driver (staying stock)
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#4
10-03-2007, 04:21 PM
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Re: o2 data help please!
Yeah my car is stock besides a hacked maf, boost gauge and a data logger. Ok I will just get a new sensor, just making sure that there wasn't anything else I should check out before I spent $70 on a new sensor. Thanks
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1993 del sol s 1990 Eagle Talon Tsi Awd
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