downunder39 Posted January 17, 2006 Share Posted January 17, 2006 Hey subi lovers, i got few questions for this forum. I would like to know if there's a link between the huge amount of smoke that goes out of my car when i start my loyale 93 and for the next 30 mins, and the cold weather. My other concern is about the oxygene sensor that i replace 4 months ago, since then, my car was really economic until 3 weeks ago. And my mpg is almost the double as it was. thx, don't hesitate if you need clarification... Quote Link to comment Share on other sites More sharing options...
Tom63050 Posted January 17, 2006 Share Posted January 17, 2006 What a coincidence! I just came online to ask a similar question. My Acura used to get 35 mpg highway, now gets 28. Just did a complete tuneup--plugs, cap, rotor, air filter. It has 77K miles on it. I wonder if the oxygen sensor could be why it gets only 80% of the milieage it used to get. It has always run perfectly, by the way, just the mileage got worse. Also, does it matter where you buy the O2 sensor? Should you always go to the dealer or do auto parts stores have good ones? Quote Link to comment Share on other sites More sharing options...
downunder39 Posted January 17, 2006 Author Share Posted January 17, 2006 Same as mine, but i got an other little problem, my gas level looks always ************ top??? never really know how much gas i got left...??!! Quote Link to comment Share on other sites More sharing options...
Subarian Posted January 17, 2006 Share Posted January 17, 2006 Bosch makes oxygen sensors for most of the new equipment manufacturers. You can get a sensor for your car that has the correct plug on it, or you can save a little money and buy the universal fit and splice the wire. Since it's a 1-wire sensor, it's an easy job. Quote Link to comment Share on other sites More sharing options...
somick Posted January 19, 2006 Share Posted January 19, 2006 Also, does it matter where you buy the O2 sensor? Should you always go to the dealer or do auto parts stores have good ones? I have just checked my first "original" sensor. Believe it or not but it is Bosh universal. It lasted 7 years. From 1992 to 1999. The car is 1992 Loyale FWD W/AT. Sam Quote Link to comment Share on other sites More sharing options...
Tom63050 Posted January 19, 2006 Share Posted January 19, 2006 Thanks for the replies guys. Quote Link to comment Share on other sites More sharing options...
idosubaru Posted January 19, 2006 Share Posted January 19, 2006 i've ran without an O2 sensor a number of times (car runs fine) and experienced no noticeable loss in gas mileage. in an XT6 and almost entirely highway miles. those weren't in top notch running condition and were already getting below average gas mileage for the XT6, but still no change with or without the O2. Quote Link to comment Share on other sites More sharing options...
calebz Posted January 19, 2006 Share Posted January 19, 2006 I ran my wagon with no 02 sensor for a while.. got about 15-17 mpg. New bosch universal 02 (less than $20) and it skyrocketed to 20mpg:banana: Quote Link to comment Share on other sites More sharing options...
Dylan86GL10 Posted January 19, 2006 Share Posted January 19, 2006 You can also speed up closed loop operation (O2 feedback, better mileage) with a heated oxygen sensor. I used to make conversion kits for Turbo Dodges and it helped out quite a bit. Also on accuracy as there is a dedicated O2 ground. Quote Link to comment Share on other sites More sharing options...
pisces_0 Posted October 25, 2006 Share Posted October 25, 2006 I'll be replacing my O2 sensor in the next week or so and have been doing a little searching on this topic. I've noticed gas mileage slowly decreasing and being that I haven't touched the O2 sensor in 4+ years I'm assuming its starting to die. All the heat sheilding on the exhaust has rusted or fallen off so the O2 sensor is much easier to access. You can also speed up closed loop operation (O2 feedback, better mileage) with a heated oxygen sensor. I used to make conversion kits for Turbo Dodges and it helped out quite a bit. Also on accuracy as there is a dedicated O2 ground. I'm curious if anyone has tried this on an older Subie. It seems to make a lot of sense, as opposed to the single wire O2 sensor that relies on exhaust temp to heat it up. A quick Google search didn't come up with much. Quote Link to comment Share on other sites More sharing options...
Syonyk Posted October 25, 2006 Share Posted October 25, 2006 I'm planning to try a heated sensor here in a few months when I have a garage again. -=Russ=- Quote Link to comment Share on other sites More sharing options...
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