Installing the NOx emulator. Part 2.

How to use the NOx sensor emulator NOXEM 129 | 130. Part 2

 

After installing and coding NOXEM (using ISTA D) as described here, we recommend you to follow this instruction to reach best results.

 

Note: INPA loader 2.023 required.

 

Switch on the ignition (engine off), connect OBD to USB connecting cable.

1. Using INPA, open learnbits menu: ../F5/Shift+F6/F2

Evaluate learnbits. If all of these learnbits are uncolored, move to point 3.

 

If at least one of the learnbits is colored:

2. open INPA adaptation menu, 2nd group: ../F8/F2

a) delete the adaptations (status: ignition on; engine off), pressing Shift+F9

b) switch off the ignition

c) start this procedure from the beginning

 

3. Open rough run menu ../F5/F7



Learnbit of flywheel adaptations has to be uncolored (white).
If learnbit of adaptations is colored, repeat point 2.

 

If the learnbit of flywheel adaptations is uncolored (white):

a) turn on the engine

Note: the car may run uneven, all Lambda probes (both wide-band and control) are not activated (their heating PWM values: 0,5 .. 8%: pre-heat mode. Data: fuel mixture menu ../F5/F6; two first lines)

b) accelerate till 100 .. 110km/h on even road

c) switch the 4th gear (for automatic transmission – in manual mode)

d) release the accelerator pedal, brake with the engine (don’t press brake pedal)

After 5 .. 10 seconds learnbit of flywheel adaptations has to be colored in black. If learnbit stays uncolored, repeat from b.

e) stop the car, switch off the ignition, takeoff the key, disconnect the diagnostic cable

f) wait, till the lighting of start/stop button turns off

 

4. start the engine, connect INPA

a) open INPA fuel mixture menu ../F5/F6

b) after a little while the MSD80 has to start to warm up the wide-band probes, PWM of them has to increase to 30 .. 60%

c) allow the engine to run idle for 5 minutes

d) perform the driving session with even speed 60 .. 90km/h; 5 .. 10min

e) repeat points c & d for several times

f) stop the car, switch off the ignition, takeoff the key, disconnect the diagnostics cable

g) wait, till the lighting of start/stop button turns off

 

5. start the engine, connect INPA

a) open INPA fuel mixture menu ../F5/F6

b) after a little while the MSD80 has to start to warm up the control probes, PWM of them has to increase to 30 .. 60%

c) allow the engine to run idle for 5 minutes

d) perform the driving session with even speed 60 .. 90km/h; 5 .. 10min

e) repeat points c & d for several times

 

6. Next few times, when starting the cold engine:

a) allow the engine to run idle at least for 5 minutes

b) drive with longer driving sessions with even RPM and torque when possible

 

With this, the creating of initial adaptations can be considered as complete.

 

Note: when adaptations are cleared, following error messages* can appear immediately:

  • error messages relating DSC. Solution: drive 10 .. 15 min, switch off/on ignition;
  • error messages relating throttle. Solution: turn on ignition, press and release accelerator pedal for 3 times, then start engine.

During adaptation process (after old adaptations have been cleared) some error messages* can appear:

  • error messages relating fuel trim (bank and/or cylinders individually);
  • insufficient performance of CO catalytic converters;
  • Lambda probes (trim and/or signal);
  • uneven run (Stratified charge and/or Homogeneous injection).

*these error messages in the exact situation do not indicate any problems with the engine performance.

 

After new adaptations are completed (after 5 .. 8 driving sessions for cold/warm engine, at least 200 .. 300 km), check the new adaptations and clear error message memory using INPA or ISTA D, if necessary.

 


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Related entries:

Performance check of NOx emulator