help please!

[dtldiaspora]

so i just spent $2000 to get basically the whole top end of my motor rebuilt and now that i finally got it back the mechanic said he couldnt figure out why the service engine soon light won't go off that its not throwing any codes or anything.

Not to mention im only getting 200 mile per tank! before i took it to him to get my engine fixed i was getting almost 300 per tank.

[pimpalero2003]

maybe your injectors or fuel pump

[pimpalero2003]

but theres no codes take it to an autozone and et them scan it