05zx4st Posted November 22, 2011 Share Posted November 22, 2011 Have 95 legacy,2.2,4eat transmission,225/70/14 all terrains have had the knock sensor code for a while,but here's the issue.Drove to the beach,got 22.7mpg on the way there.drove all week on the beach etc. On the way home I only managed 14.5mpg,and it felt like it had no power whatsoever. I happened to run though a bunch of water at the beach,so I figured I got my o2 sensors wet(it would shake and shit when I went through and for a min after the water) so I replaced it. Made it run better,but still getting terrible mileage I average 15ish.now im getting a erratic idle and feeling sluggish at lower rpms. Any insight is appreciated. Link to comment Share on other sites More sharing options...
Toallhisdoom Posted November 22, 2011 Share Posted November 22, 2011 Is your air filter wet? That would create all the issues your having. Link to comment Share on other sites More sharing options...
legacyman1657615403 Posted November 22, 2011 Share Posted November 22, 2011 clean your maf sensor. Link to comment Share on other sites More sharing options...
I Donated broknindarkagain Posted November 23, 2011 I Donated Share Posted November 23, 2011 Sounds like an air problem. Clean your mass air flow sensor and change your air filter. Driving around on the beach, you likely got a bunch of sand clogged up in the air intake -broknindarkagain My Current Project - Click Here COME AND TAKE IT "The only thing necessary for the triumph of evil is for good men to do nothing." Link to comment Share on other sites More sharing options...
05zx4st Posted November 23, 2011 Author Share Posted November 23, 2011 Appreciate the insight,went and bought maf cleaner and carb cleaner. Cleaned the egr valve out and the maf. Hoping it helps Link to comment Share on other sites More sharing options...
05zx4st Posted November 28, 2011 Author Share Posted November 28, 2011 Still getting garbage mileage...what yrs could I get a knock sensor from? Im broke,but a pull a part is right down the road. Link to comment Share on other sites More sharing options...
I Donated broknindarkagain Posted November 28, 2011 I Donated Share Posted November 28, 2011 buy a new knock sensor. You can find them for about $15 on Ebay. There is a link to one on the bottom of this post. Don't go with a junk yard one. more times than not they get damaged when removed...they are pretty sensitive http://www.ebay.com/itm/New-Subaru-Legacy-Knock-Sensor-90-91-92-93-94-95-96-/320545016968?pt=Motors_Car_Truck_Parts_Accessories&fits=Year%3A1995%7CModel%3ALegacy&vxp=mtr&hash=item4aa1f8cc88 -broknindarkagain My Current Project - Click Here COME AND TAKE IT "The only thing necessary for the triumph of evil is for good men to do nothing." Link to comment Share on other sites More sharing options...
05zx4st Posted November 28, 2011 Author Share Posted November 28, 2011 Sweet,didn't know the model yr I could go with.. appreciate it! Link to comment Share on other sites More sharing options...
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