Sharp timing drop >3° at high RPM - overly aggressive tune or knock detection.
Sharp timing drops indicate knock detection or overly aggressive tuning
Verify spark plugs are gapped correctly (0.024-0.026" for tuned B58)
Replace spark plugs if over 15k miles
Replace ignition coils if over 60k miles
Use higher octane fuel or add ethanol content
Consider re-flash with more conservative timing curve
Check for carbon buildup on valves (common on direct injection)
Multiple cylinders (≥3) pulling timing simultaneously - tune too aggressive.
CRITICAL - Tune too aggressive for current conditions
Reduce boost pressure immediately
Use higher octane fuel (93+ minimum)
Add ethanol content if fuel system supports it
Consider less aggressive tune file
Multiple simultaneous corrections indicate systemic issue, not isolated cylinder problem
Wastegate duty cycle maxed at 100% - boost leak or weak actuators.
Perform boost leak test immediately
Check wastegate actuator preload/rod length
Inspect diverter valves for proper operation
Verify N75 wastegate solenoid is functioning
WGDC maxed means ECU cannot control boost properly
AFR >12.5:1 at high load - dangerous lean condition risking engine damage.
STOP IMMEDIATELY - Engine damage risk
Check fuel pressure (LPFP and HPFP)
Verify injectors are not clogged
Check for boost/vacuum leaks causing incorrect load calculation
Review tune file - may be requesting too much timing or boost
Lean AFR at WOT can cause catastrophic engine damage
| Time | Severity | Message | Details |
|---|---|---|---|
| 30.13s | warning | Timing dropped 16.9° at 5608 RPM | Timing dropped 16.9° at 5608 RPM (aggressive tune or knock) |
| 30.13s | warning | Timing dropped 14.6° at 5608 RPM | Timing dropped 14.6° at 5608 RPM (aggressive tune or knock) |
| 30.13s | warning | Timing dropped 16.7° at 5608 RPM | Timing dropped 16.7° at 5608 RPM (aggressive tune or knock) |
| 30.13s | warning | Timing dropped 14.2° at 5608 RPM | Timing dropped 14.2° at 5608 RPM (aggressive tune or knock) |
| 30.13s | warning | Timing dropped 16.5° at 5608 RPM | Timing dropped 16.5° at 5608 RPM (aggressive tune or knock) |
| 30.13s | warning | Timing dropped 15.2° at 5608 RPM | Timing dropped 15.2° at 5608 RPM (aggressive tune or knock) |
| Time | Severity | Message | Details |
|---|---|---|---|
| 29.13s | critical | 4 cylinders knocking simultaneously - reduce boost or use higher octane | 4 cylinders pulling timing simultaneously (worst: 3.0°) - tune too aggressive |
| Time | Severity | Message | Details |
|---|---|---|---|
| 22.05s | warning | WGDC maxed at 100% - check boost system and wastegate | WGDC maxed at 100% - boost leak or weak wastegate actuator |
| 27.69s | warning | WGDC maxed at 99% - check boost system and wastegate | WGDC maxed at 99% - boost leak or weak wastegate actuator |
| Time | Severity | Message | Details |
|---|---|---|---|
| 23.11s | critical | Too lean at WOT: 13.2:1 - risk of engine damage | Running 13.2:1 AFR at 186% load (expected 11.5-12:1) - DANGEROUS lean condition |
Comprehensive pull analysis with boost, fuel, timing, and IAT monitoring
High Pressure Fuel Pump maintained 159.3-209.7 Bar (threshold: 100 Bar minimum at high load)
Boost deviation: max 0.97 Bar, avg 0.14 Bar (threshold: 0.15 Bar at mid-RPM)
IAT range: 35.0-39.0°C (threshold: 60°C warning)
Worst knock: -3.0° (threshold: -3° warning)
STFT range: -9.7% to 11.3% (limits: ±30%)
LTFT range: 0.0% to 0.0% (threshold: ±10%)
[WARNING] Issue detected: WGDC Maxed — 2 violation events detected
[CRITICAL] Issue detected: AFR Too Lean at WOT — 1 violation event detected