check engine light came on today....

[SlowSOHC]

codes p0148 and p0158, fuel delivery something or another on the first on and h02 sensor high voltage something or another on the second one. Anyone have this problem with theirs? I' m thinking of changing my alternator, i think its been bad for a while, could this be the problem? Or is it something major?
thanks.

 

[sabotage]

both codes relate to oxygen sensors can you tell us what your car has as far as mods and has it been tuned.? and also have you ran race gas lately ?

 

[hotcobra03]

switch rear o2s side to side and see if code follows o2

po158 will change to po138 if o2 is bad...

po148 might have been caused by po158...

reset pcm and do a good drive...

 

[SlowSOHC]

off road x with mil's, jlt cai, 2.8 pulley, slp lm1s, should have a tune i bought it with the modifications on there, except the off road x, i installed that. i have a handheld tuner but havent gotten it dyno tuned yet, no race gas, and ill try the o2 switch when i get back in town and see if thats it. but if yall have anything else, or suggestions let me know. thanks..

 

[hotcobra03]

could be mil`s also..depending on things..

i tried them and had nothing but codes...i have or xpipe but stock on pulley..

with a predator performance tune... rear o2`s were left on..

if i were to shut them off i have 2 in 2 places...with predator..o2/o2 heaters