Malfunction Criteria And Threshold Value(S)

WARNING: This page is about a different car, the 2006 Suzuki Verona. However, it is still accessible from the selected car via links, so may be relevant.

Monitoring during the 200 crankshaft revolutions:

The cylinder-specific counters are monitored each cycle.

If the single cylinder misfire detected over a critical threshold 700.

If the threshold is reached outside of the FTP cycle, the concerning cylinder is shut off immediately. CARB A misfire criterion is confirmed, else the criterion will be evaluated at the end of the 200 crankshaft revolution window (in this case, the cylinder will be shut off only after (3) A windows).

When an error is set, MIL is blinking or ON.

Misfire Cylinder Limp Home Process:

Cylinder shut off is limited by a maximum number of cylinders (1) that can be shut-off simultaneously each time, the misfire cylinder limp home process on one (or more) cylinder(s) is triggered, the corresponding cylinder counter(s) is (are) unitary incremented.

Monitoring at the end of 200 crankshaft revolutions:

If the global sum of detected misfire is greater than the threshold 4,200, the cylinder with the highest misfire rate is determined.

RPM < 4,500 rpm

Load percentage is < 70.999%

And

Counter is > 700

Then engine criteria is in the FTP region.

At the end of first 1,000 crankshaft revolutions:

If the sum of detected misfire is greater than threshold 44, misfire cylinder limp home process is activated.

At the end of (other than first) 1,000 crankshaft revolutions:

If the sum of detected misfire is greater than threshold 44 during four monitoring intervals, cylinder limp home process is activated.