DTC P1107 - Manifold Absolute Pressure Below Minimum Threshold

Conditions for setting dtc P1107

Engine Running
Manifold Absolute Pressure Sensor ≤ 0.73 psi
The above must be present for a period of 128 instances/cycles or greater to trigger DTC P1107

Step

Action

Value (s)

YES

NO

1

- Key ON, Engine Running at full operating temperature

- Within VCM Live, open the MAP sensor DTC Minimum parameter, does the MAP sensor parameter display 0.73 psi or less?

≤ 0.73 psi

Go to Step 2

Intermittent Issue

(Refer to Intermittent Diagnostics)

2

- Key OFF

- Disconnect the MAP sensor connector

- Key ON

- Does the MAP sensor parameter within VCM Live display less than 0.5 psi?

≤ 0.5 psi

Go to Step 3

Go to Step 5

3

- Probe the MAP ground connector cavity "A" (for Drive-By-Cable harness) cavity 2 (for Drive-By-Wire harness) with a test light connected to battery voltage

- Does the test light come on?

 

Go to Step 4

Go to Step 6

4

- Check the MAP mechanical vacuum connection for correct mounting or any possible physical damage that may cause leakage

- Any issues found?

 

Go to Step 5

Repair any issues found

5

- Key OFF

- Disconnect the ECU connector "C" and inspect the terminals for any physical damage or corrosion and contamination

- Any issues found?

 

Go to Step 6

Repair the pins as necessary and circuit.

6

- Replace the MAP sensor

- Is the repair complete?

 

Go to Step 7

N/A

7

- 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 30. Manifold Absolute Pressure Below Minimum Threshold Diagnostics Table

NOTE: Reference DTC P0108 - Manifold Absolute Pressure Sensor Circuit High for sensor cavity location.