O2 replacement
#1
O2 replacement
The check engine light came on, it was the o2 sensor upstream, I had it replaced with a Denson, my fuel economy has dipped to below what it was a a faulty sensor! Normally my mpg is between 28 and 29, now it's 23. Any ideas?
#4
#5
Pole Position
Have you checked the wheel bearings and brake calipers for sticking? Very probable cause for a drop like that, at that mileage. I would suspect that near the top of the differential diagnosis list.
#6
Moderator
Keep in mind this sensor impacts the calculation of mpg. You may be getting wrong calculated value before/after. Just use the MPG as an indicator and do actual milage with actual fuel pumped in at fillup.
OMG ... actual milage is yet based on rotation of tire and not actual miles driven & actual gas consumed is yet another estimate.
Salim
OMG ... actual milage is yet based on rotation of tire and not actual miles driven & actual gas consumed is yet another estimate.
Salim
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