here we goo I pulled all the codes out of my new 89' stang.

Koeo

11-system pass

Continues Memory:
33-EGR not opening
41-Hego sensor indicateds system running lean (right side)
66-Maf sensor went below .4 volts during last 80 warm up cycles
91 no Hego switching dected always Lean(left side)

KOER:
21-ect out of self test range
41-No hego switching detected running lean (right side)
91-hego sensor cuircuit indicated system lean (left side)
33-EGR not opening
anyone help me fix it from running lean.an it not seeing the maf in warm up cycle...help me fix my car

 

Hego is your O2 sensor. Prolly means you need 2 new ones. Sounds like your MAF is grounding out, same thing happened to me, go buy a remanufactured unit. For the EGR, try buying one of those EGR delete sensors so the computer thinks it's opening and closing.

 

anyone else....

 

if your egr is fookin up on ya, just remove all that crap... unless your state has emissions (i pity those of you with state emissions, i really do)