P0171-4 oh boy fun starts

[Alexo1us]

ok so i got to get etest soon got these codes on my new toy I have torque shows me LTFT at idle peg 25 but above idle its down to almost perfect .5 to2.5 short term is always moving with a normal range
I have the multi miss code as well no lite (think its just symtom) so not bad yet Im suspecting vacume issues

Do these things have IAC or something like besides normal lines and connections. looks like i got day or two off, if i can find a warm dry place to work ill go over it.
dam we need u do it in east toronto..

Let me know ur thoughts

 

[jimmyjam]

Do these things have IAC or something like besides normal lines and connections.

no, DBW doesn't need an IAC. The V8 has the driver side pcv on top of the manifold, passenger side on the intake pre-throttle body, brake booster on the back of the intake

i'd start by pulling the spark plugs and seeing what they look like, if any cylinder in particular looks funky

could be a vacuum leak, maybe a dirty injector