Thread: Fuel Pump? Studdering Under Acceleration

So, I was all excited after I got my O2 sensor in and took it for a test drive today and under ANY acceleration, and occasionally when not accelerating the RPMs jump around hundreds like crazy. And sputters and doesn't really want to accelerate very fast or much. And, I could swear I hear a ticking/clicking noise from my engine that's more pronounced than when I listened to my parents' '07 GT (or maybe I'm hearing things)... Also, when I last started it in the shop now it seems to idle a bit loopy like it does on the road under acceleration.

I've replaced the MAF, tested MAF wires and ran new MAF to PCM wire, and replaced O2 sensor and wires.

Additionally, the old P0102 code came back again that I keep having. Fuse #21 no longer blows.

https://youtu.be/rOyTWpcqHFk Sorry for the orientation, didn't realize I had it that way...

if the oxygen sensor you bought is a Bosch take it out throw it in the garbage and get a Delco or Delphi or Denso oxygen sensor. I've had more problems with Bosch oxygen sensors than almost any other replacement part

I'm assuming you replaced the upstream o2? If the sensor itself isn't the issue you might want to make sure you didn't damage the #6 plug or wire.

I was warned against Bosch O2 sensors, it's a Denso.

Yeah, upstream O2. I unplugged it and ran a new wires from the O2 plug along the firewall and up by the coolant tank and over on top, like what Scotty did, wasn't anywhere near #6 plug.

Was it doing this before you replaced 02 sensor l..sounds kinda like a failing icm

Yup, was doing it before I replaced the O2.

Is this possibly the fuel pump? If it's not too hard I could swap it with my part's car one and see if it changes anything...

EDIT:

Thanks to Scotty's suggestion I swapped the MAF from my extra TB and low and behold she runs like a top, no engine codes, no studder, all fixed!