check engine light part 2

ok, so I'm back at school and got the error codes checked, here is what it says:


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ENG: 138/P1294
Idle Speed
Performance

ENG: 150/----
Fuel Level Voltage
HI


Temporary Codes

System Pass:
No Faults Detected.
----------------------

now, what can i do to fix them?

thanks

anybody... anybody... beuler?

Year, engine, info!

'98, 4.0, and i bored the TB to 62mm, a 62mm TBS and a CAI, are what i did to get the light to turn on.