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· Registered
RIP 2000 2.5RS, 1999 RS
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625 Posts
Discussion Starter · #1 ·
Recently I've been getting 12.9 MPG in my 2.5rs, it's completely stock exept for the K&N Panel Filter, I get a CEL for my knock sensor, it comes and goes, could this be the problem? or maybe my o2 sensors are going?
 

· needs more cowbell
95L, 07 2.5i, R6
Joined
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12,639 Posts
Maybe some of the oil from the k&n is fouling a sensor in the intake tract? Otherwise, that is some seriously poor mileage. Is it an auto as well?
 

· Registered
RIP 2000 2.5RS, 1999 RS
Joined
·
625 Posts
Discussion Starter · #19 ·
Just replaced the sensor, and drove around for about 23 miles and the gauge barely moved, I'll keep driving it a bit to see if my problem has been solved, I'll keep you guys posted.
 
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