October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.
DTC P0430 Catalyst System Efficiency Below Threshold (Bank 2): DTC Detecting Condition
DTC DETECTING CONDITION CHART
| ITEM |
DETECTING CONDITION |
POSSIBLE CAUSE |
| DTC Strategy |
- Comparison of the signal ratio of upstream and downstream O2 sensor in a load and speed range
|
- Exhaust gas leaks
- Rear HO2S malfunction
- Three way catalyst converter malfunction
|
| Enable Conditions |
- 400 (752° F) < Catalyst model temperature < 900°C (1652°F)
- Coolant temperature > 70°C (158)
- Lambda control within limit
- 1200 RPM < Engine speed < 3000 RPM
- 300 < Air mass flow (mg/rev.) < 840
- No misfire is detected
- Not transient condition as below
- Engine Speed | Current - Mean | < 400 RPM
- Air Flow | Current - Mean | < 270mg/rev.
- Lambda Correction | Current - Mean | < 5%
|
| Threshold Value |
- Averaged malfunction index > 3
|
| Diagnostic Time |
- 80 lambda controller cycles
|