my check engine is coming on. i put a brute force cold air intake on my truck v6 4.0L sohv.
the engine is running lean is what it said when i had the computer read. what should i do?

 

first off, is it sohc or ohv? and the check engine light is it for one bank or both banks?

 

are all of your clamps tight and did you check that very problematic vac hose elbow on the 4.0

 

single over head valve.all clamps are tight. vac hose?

 

first of all theres no such thing as a single over head valve...what year is your truck... theres a vac hose elbow under the upper rad hose and runs under the throttle body that is known for cracking...i just had to replace mine

 

1998

 

1998 is OHV. Do you have everything connected to the new intake?

 

maybe the maf sensor isnt connected right or it's bad

 

did you spray the air filter down with oil?

 

When I was running lean, it was due to the PCV elbow that everyone is mentioning. It had a crack that was causing lean bank 1 and 2. It couldn't hurt to clean the MAF though, so I'd do that too...

 

us ohv's dont have that elbow.

 

i checked my vacuum hoses and there fine. everything is hooked up correctly to the new intake. i went to autozone to have it read and it said leak or bad o2 sensor. could it be bad o2 sensor? my air filter is a oil free filter. since this is my main vehicle for driving. is it ok to drive my truck? i drive 1hr to work and 1hr back.

 

what was the actual code(s)?