Knock with stock tune at WOT.

No just not to break these clips lol took out one on top of engine appears oily

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Ya it's extended warranty cleaned both map sensors and the one by the intake tightened a feel clamps that didn't feel tight. Only got a knock reading of 4 which is down from the usually 5 or 5.5 with this tank of gas.

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Should I check for a dtc I've personally never gotten one off this car. Wish it told me more

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There are events stored in the ECM memory that are not DTCs, but will cause one if the occur too frequently, for example misfires.  Also, some components depend on codes set by others... For example, when my LPFP and fuel control module failed all I got was a communication code (not DTC and won't light a CEL) about bad information from the fuel pumps to the ECM, and a low fuel rail pressure code from the sensor on the HPFP.  Point is there may be indications that don't set DTCs. Even at that the FCM failure wasn't diagnosed until it died during the test drive for the LPFP. My MyCal saw these so surely Torque, etc will.
 
ya ive tried almost everything except cleaning the cac. Im bringing it to the dealer tomorrow. Im curious if they ask if i was tuned should i just tell them yes? I was only tuned for  a week or so then flashed back to stock.
 
curry67 said:
ya ive tried almost everything except cleaning the cac. Im bringing it to the dealer tomorrow. Im curious if they ask if i was tuned should i just tell them yes? I was only tuned for  a week or so then flashed back to stock.
Click to expand...
Dont tell them you were tuned. Chances are they will end up telling u anyways.

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I think the gas you got is bad and you should consider changing the 02 sensor. the first time i have ever seen knock was when i changed from my regular gas station to a new one, I saw a max of 4.0. After changing the gas to mobile (top tier) knock went down to 2 max, and after the 02 sensor change (same day i changed gas)  it was back to 0.

(see log attached)
 
Must be a thing with wideband sensors to go flatline.  Never had a narrowband do that, just go lazy ...
 
At time stamp 4269 is the indicator to me that your bank 2 primary o2 sensor is giving out....And your WOT pulls are not near long enough to get good data

Not saying the 02 sensor is your only problem but I would start there before you drive your self nuts...Get the car mechanically sound then other things can clear up...

The difference between bank 1 and bank 2 is really off in places and your LAMBSE should match your afr...Atually the afr should match lambse, not to be mistaken with LAMBDA
 
lol i just hear people saying they screw up sensors. Im desperate to solve this as i want to drive around tuned before it gets to cold to have fun.
 
Sometimes they aren't the greatest when they are over oiled for cars that use a MAF sensor for primary fueling  and airflow calculations because the filter is so close to the sensor it can become oil coated. But we use MAP sensors for fueling and airflow calculations and they are less prone to mis-calculations due to coatings of oil on them.

Just get your damn sensor changed and then see where you are before you speculate to death and reach for solutions that aren't relevant....You seem to be fighting changing the part but your data shows it needing changed, so do it already jeesh
 
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