Left Coast Resident
Ubẽr Clubbie
I adjusted the IQ recently, and realized there are 3 routes to setting the SAME mg/str value (regardless of the value that you chose).
To help you visualize what I’m asking, I’ll arbitrarily use 3.4 – 3.6 mg/str for the examples below. Can anyone tell me (or direct me to URL’s or club threads that will tell me) the difference in fueling, economy, and power characteristics that will be obtained at different rpm and load requests by:
1) leaving the VAG-COM adaptation parameter defaulted at 32768, and adjusting the head to read 3.4 – 3.6 mg./str.
2) adjusting the VAG-COM adaptation parameter DOWN as far as it will go (raising IQ), and then hammering the head back to the to the driver’s side (lowering IQ) to read 3.4 – 3.6 mg/str.
3) adjusting the VAG-COM adaptation parameter UP as far as it will go (lowering IQ), and then hammering the head back to the to the passenger’s side (raising IQ) to read 3.4 – 3.6 mg/str.
IQ is measured at idle, and as you know, it changes as you drive. At a high (out of recommended range) value, my car smoked. At a lower (within recommended range) value via method #2, the smoke decreased, mpg has gone up a bit, and the car is more responsive. Because of the foregoing, I have a feeling that this question is deeper than it appears, and that fueling across the load and rpm ranges are affected by the method used.
Help, anybody?
To help you visualize what I’m asking, I’ll arbitrarily use 3.4 – 3.6 mg/str for the examples below. Can anyone tell me (or direct me to URL’s or club threads that will tell me) the difference in fueling, economy, and power characteristics that will be obtained at different rpm and load requests by:
1) leaving the VAG-COM adaptation parameter defaulted at 32768, and adjusting the head to read 3.4 – 3.6 mg./str.
2) adjusting the VAG-COM adaptation parameter DOWN as far as it will go (raising IQ), and then hammering the head back to the to the driver’s side (lowering IQ) to read 3.4 – 3.6 mg/str.
3) adjusting the VAG-COM adaptation parameter UP as far as it will go (lowering IQ), and then hammering the head back to the to the passenger’s side (raising IQ) to read 3.4 – 3.6 mg/str.
IQ is measured at idle, and as you know, it changes as you drive. At a high (out of recommended range) value, my car smoked. At a lower (within recommended range) value via method #2, the smoke decreased, mpg has gone up a bit, and the car is more responsive. Because of the foregoing, I have a feeling that this question is deeper than it appears, and that fueling across the load and rpm ranges are affected by the method used.
Help, anybody?