Bank #2 running lean?

[nismopu]

pulled a p0174 code off the ECU the other day and according to the FSM I should check the afm, fuel pressure, injectors,and o2 sensor. I have all the voltages within spec so, that jsut leaves a few items to check right? Symptoms include loud pinging and knocking even under minor acceleration/obviously high loads. While sittting at lights in drive the car will shudder alomost like broken motor mounts and idle will dip. If you put it into neutral the revs go back to normal like there suppost to. I am almost certain the pinging and this rough idle are related but this is the first time its ever thrown a code for it. I also tried pulling codes from it when this first started with the rough idle.

My friend has a 4 gas or 5 gas whatever its called at his shop and I have been tempted to see what he would charge me for the use of it. Since all the voltages are within spec do you think its gonna tell me anything different?peace.

1997 maxima GXE auto(bleh)191,554k miles

[maxhopper]

Most occurences of this code lead to the O2 sensor for that particular bank.

[nismopu]

thanks i will look into it but i am pretty sure the voltages were within spec. peace.

[Eddie]

My girlfriend's 01 maxima had the exact same symptoms: rough idle, pingy rattling sound under acceleration, and a P0174 engine code. The nissan dealership diagnosed it to be the afm and now it runs like it used to with out the rattling noise. It accelerates alot better now.

Not sure how much the part itself cost, but the bill was $415 (I got it cheaper since my brother is a nissan car dealer).