Noob question...but...

[scyattica]

My 93 sport was running a little on the...not so good side...Hesitation on the low end,slight surge and every once and a while,a CEL. After a couple months of this,I finally got around to putting a scanner on it,I got a 137 and a 538,02 sensor,bank 2,and a insufficent RPM change during ignition on or something along those line.

First off,is bank 2 the driver side or passenger?(totally noobish,I know,sorry).

Second,Insufficent RPM change? What does that mean,and what could cause it?
I've been told it could be a vacuum leak,or something to do with the idle...but I've been told it could be so many things before this scanner,I just dunno what to believe anymore.

Any help is much Appreciated.

 

[Minivek]

I'm not sure about the other codes, but I know the RPM change code, it just means you didn't goose the throttle, either sufficiently or at the right time. I know when I checked my codes with the CEI it gets to a point where a single flash prompts you to step on it ie. full throttle for basically the time it takes to bottom out the pedal. thats it... hope it helps