Misfire under hard acceleration

[SHOdded]

That is a great fix then So you turned the bluetooth off on your phone? Did you unplug the OBD adapter also?

 

[Rayme20]

No turned Bluetooth off on the car the obd Is working fine

That is a great fix then So you turned the bluetooth off on your phone? Did you unplug the OBD adapter also?

 

[Rayme20]

No clue how the cars Bluetooth could effect performance, but at this point it seems it has, but I will update if it comes back with Bluetooth off, so far solid

 

[SHOdded]

OBD adapters have been known to cause random codes to pop up, usually Bxxxx or Uxxxx, first time hearing of a misfire code tho.

 

[Rayme20]

It's not the obd it is the cars internal Bluetooth

 

[Rayme20]

I got trim levels 4 of them what should they be?

 

[SHOdded]

From what I have seen, the long term fuel trims should stay at/near zero. The short-terms will fluctuate depending on actual load conditions, and should be predictable. The values for both banks should run pretty close the entire time. During deceleration (off the throttle), there is fuel cutoff, so you will see lambda/air-fuel ratio peak (xtreme lean) during these times. WOT is when the lambda/afratio should be at its' lowest (rich). We would be looking for unexplained spikes in either direction, to see if there is actually a problem. Keep the car's BT on during the tests to mimic realworld conditions.

 

[Mase]

I am experiencing this same issue where the car cuts out at WOT. I checked my VIN on the site listed previously and also tried disconnecting my battery to see if it would relearn. Today I am doing oil, filter, and plugs so hopefully that will make some difference but it is definitely frustrating to have the car shut down in the middle of a pull. Any other ideas all? Mods in signature.

 

[SHOdded]

If the part # on the fuel pump control module in your car is different from that listed in the recall, might be worth a shot to swap it out.

 

[Mase]

So I did the oil change and spark plugs. Stock plugs were gapped at .040 which is concerning because I believe we are supposed to be at .030? Those back plugs were a bitch to get at! At any rate I went ahead and did the battery disconnect as well. Afterwords I took it out and it seemed to be running much nicer. Not as rough as it seemed previously and no misfire/cut out. Overall I am very satisfied with how it is running now. If only I could get the bpv's to stop venting under load (acceleration) I think I would be 100% happy! LOL

 

[StealBlueSho]

Check your vacuum lines.

 

[Mase]

Check your vacuum lines.

Gonna be really dumb here and ask how? Visually? Which lines are the vacuum lines? There's so many damn lines on this thing!

 

[glockcoma]

Gonna be really dumb here and ask how? Visually? Which lines are the vacuum lines? There's so many damn lines on this thing!

Circled in red. Check those.
Not my engine btw,