well the check engine light came on and the scanner tells me running lean bank 1. my buddy says buy new injectors to fix it so what brand would you guys go with? or is that not the problem?

 

bump.




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When you find out let me know because my mom's 98 4.0 is doing the same thing. I have been researching and it could be a bunch of things.

 

i really dont know, but maybe try some seafoam to clean the injectors before you replace them

 

Possible vaccum leak thats what mine was

 

^ how would you check for that?

 

Get yourself some tb, maf, carb, ect. cleaner and spray all around the manifold, intake, etc. Give it a good soaking. If you have a leak you`ll hear the engine idle hesitate and rev itself back up. I had a lean code in banks 1 and 2 and it was a vac leak.

 

Ok, that is what I was thinking. I was just gonna spray some carb cleaner on the lines and see what happens.

 

yep also check and clean the maf i had that code and my was due to my maf being dirty

 

There are many variables that will cause lean codes. Don't just throw parts at it, try to determine the cause. Another possibility along with what everyone else said is O2 sensors. They will cause lean codes.

 

The O2's would be the first thing i would check.

 

It is probably an O2 sensor and not the MAF because a dirty MAF would cause both banks to be lean, not one bank.