Still need help with check engine light

[BigGump]

These are the codes I get # 26 27 28 and 33 the light comes on after about 10 mins of driving 90 F350 with a 460

 

[FordF-SuperDuty]

http://fordfuelinjection.com/index.php?p=14

 

[BigGump]

I got those numbers but don't know where to start fixing things. I see the definition but it don't give any ideas any help?

 

[blacksnapon]

looks like mass air flow sensor and the egr valve

 

[5.0Flareside]

looks like mass air flow sensor and the egr valve

AHHAHAHAHA!!!!!!!

i get to correct vince on something!!!!!! YES THE DAY HAS COME!!! jk man...

but no MAF on that truck.....

 

[blacksnapon]

Its the hazards of internet diagnostics.

 

[5.0Flareside]

LOL.... yeah.. plus everything nowdays has a MAF sensor.. so its kinda ingrained in ya...

 

[blacksnapon]

I just don't get to work on much 21 year old stuff any more.