DTC P1102 - Mass Airflow Below Minimum Threshold
Conditions for setting dtc P1102
| ￭ | Engine Running |
| ￭ | Mass Airflow Sensor ≤ 0.00 lb/min |
| ￭ | The above must be present for a period of 128 instances/cycles or greater to trigger DTC P1102 |
|
Step |
Action |
Value (s) |
YES |
NO |
|
1 |
- Key ON, Engine running at full operating temperature - Within VCM Live, open the MAF sensor DTC Minimum parameter, does the MAF sensor parameter display less than 0.00 lb/min? |
≤ 0.00 lb/min |
Go to Step 2 |
Intermittent Issue (Refer to Intermittent Diagnostics) |
|
2 |
- Key OFF - Disconnect the MAF sensor - Key ON - Does the MAF sensor parameter within VCM live display pressure less than 0.05 lb/min? |
≤ 0.05 lb/min |
Go to Step 3 |
Go to Step 5 |
|
3 |
- Probe the MAF connector ground cavity "B" with a test light connected to battery voltage - Does the test light come on? |
|
Go to Step 4 |
Go to Step 7 |
|
4 |
- Check the location of the MAF, ensure the location is free from physical damage or any and all debris that can cause restriction of airflow - Is the MAF sensor location area OK? |
|
Go to Step 5 |
Repair the location that has physical damage and clean any debris that was found. |
|
5 |
- Key OFF - Disconnect the ECU connector "B" and inspect the pins for any physical damage or corrosion - Are the pins OK? |
|
Go to Step 6 |
Repair the circuit and pins as necessary, locate any wires that need to be repaired or replaced |
|
6 |
- Replace the MAF sensor - Is the replacement complete? |
|
Go to Step 8 |
N/A |
|
7 |
- Disconnect the ECU connector "B" and check for continuity between the MAF sensor connector ground cavity "B" & ECU ground C23-B - Do you have continuity between them? |
|
Go to Step 8 |
Repair the circuit as necessary, locate any wires that need to be repaired or replaced |
|
8 |
- Clear any DTC from the ECU - Turn the ignition off and wait 30 seconds - Start the engine and operate the engine to full operating temperature - Observe the Check Engine Light on the Menu bar in VCM Live - After operating the engine within the test parameters, check for any store codes - Does the engine operate without any stored DTC's? |
|
System is now operational and ready to be tuned |
Contact HP Tuners Support |
Table 28. Mass Airflow Below Minimum Threshold Diagnostics Table
NOTE: Reference DTC P0103 - Mass Airflow Sensor Circuit High for sensor cavity location.
