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Old 03 Jun 2017, 12:22 pm
ptcruisersteve ptcruisersteve is offline
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Join Date: Aug 2014
Location: Thousand Oaks, CA
Posts: 7,598
Default Re: P2074 CHRYSLER Manifold Pressure

P0274 = Manifold Pressure / Throttle Position Correlation; High Flow & Vacuum Leak

Possible Causes:

1. Vacuum leak in hoses or component connections
2. High resistance or resistance to ground in MAP 5 volt supply or signal circuit
3. MAP Sensor has failed
4. High resistance in MAP ground circuit
5. Throttle Position Sensor has failed or is improperly adjusted
6. High resistance or resistance to ground in Throttle Position Sensor 5 volt supply or signal circuit
7. High resistance in Throttle Position Sensor ground circuit
8. PCM has failed

Check all the hoses.

1. Inspect the Intake Manifold for leaks and cracks.
2. Inspect the Power Brake Booster for any vacuum leaks.
3. Inspect the PCV system for proper operation or any vacuum leaks.
4. Check all hoses on the turbo.
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