Hi
got a scion XB last week f
Looks like its a 19 mpg car (((
Air filter is good, tires properly inflated, sparks plug need to be replaced but cant see a 4 mpg jump with new ones..

Also rear wheel bearing are a bit loud ..not as bad as what Ive seen online videos but probably should replace them .
$150 at Oreillys(((((((
Any other places cheaper yet reliable ?

Other than that great little car

 

Hi and welcome to ScionLife!!!

Do all usual maintenance items:

- compression-test, post numbers here you may have clogged rings
- inspect for vacuum-leaks along entire intake-tract, this throws off load-readings to ECU
- measure vacuum at all vacuum-hoses, what are they at idle with warmed up engine?
- measure pressure in fuel-rail


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I removed the ECU fuse out it back and now all is good )))
well except the rear wheel bearing ))

 

Congratulations on the purchase! Also, throw some pictures for us to see when you get a chance.