engine light

[djamick]

I bought a 2003 tahoe z71 today upon running the obd reader i had 23 codes pop up almost all are 4wd transfer case or such related the light works on buttons and it engages with no issues i can post all the codes if you like.

 

[#1taho]

Yes please post. And have you tried the clear them ?

 

[djamick]

I did at oreilys then went to firestone yesterday and it just threw up egr valve but original codes were
All below c
0222 0223 0221 0300 0305 0306 00321 0327 0359 0374 0379
All below b
0790 2725 0550
All below p
00120 0449 0522 1516 1518 0220

 

[djamick]

Anyone

 

[SLCHOE]

Se which codes have come back since you cleared them. Then post back up.

 

[djamick]

All of them

B0092 B2725 B0790 U1255

C0379 C0374 C0359 C0327 C0321 C0306 C0305 C0300.