Help with CEL (again)

[Mean98GT]

I pulled some more codes (while clearing the previous codes).
Lean on bank 1 and 2.
Insufficient EGR flow.

Would I get the lean codes from not having cats and not having MIL's?

Should I just clean the EGR?

Thanks.

 

[duff daddy]

If the engine is expecting a larger amount of flow from the EGR and its now seeing it then it could make the engine Rich (not enough air and too much fuel) but I dont see how it would make it lean. Attack one thing at a time. Take care of our first set of faults clear them and then drive and see how it goes.

 

[Mean98GT]

got ya thanks duff. but would those lean codes come from not having cats? I dont have cats or eliminators but theres no eother codes so i have to guess that those are coming from the lack of cats?

 

[duff daddy]

got ya thanks duff. but would those lean codes come from not having cats? I dont have cats or eliminators but theres no eother codes so i have to guess that those are coming from the lack of cats?

You will need to get your rear o2's turned off in a tune.

 

[Mean98GT]

ok. coincidentally im picking up an xcal2 tomorrow!!

 

[Mean98GT]

also i just read an article that stated that the lean banks could possibly be resolved by cleaning the EGR.

 

[duff daddy]

also i just read an article that stated that the lean banks could possibly be resolved by cleaning the EGR.

dont repair until you have diagnosed.

 

[Cruizin GT]

Had the same insufficient egr flow on my wifes car, there is a small passage under the egr that runs back to the intake. It will get cruded up with carbon, I cleaned hers out cleared the code and all is well again.

 

[Mean98GT]

I planned on cleaning before I replaced it. Thanks duff and cruizin.