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HOMESERVICE MANUALSCHEVROLET2006COBALT SS, 4D SEDAN, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 387 (ENGINE CONTROL SYSTEM - 3.9L - DTC P0442 TO DTC P2A01)DTC P0660TYPICAL SCAN TOOL DATA
2006 Chevrolet Cobalt SS, 4D Sedan, Standard

Typical Scan Tool Data

2006 Chevrolet Cobalt SS, 4D Sedan, StandardSECTION Typical Scan Tool Data
WARNING: This page is about a different car, the 2006 Chevrolet Monte Carlo and 2006 Chevrolet Impala. However, it is still accessible from the selected car via links, so may be relevant.
DTC P0660

Scan Tool Parameter Normal Range
Normal Operating Conditions:  The following scan tool parameters listed below produced the same results from the following operating conditions
  • Key ON Engine OFF
  • Engine idling/driving with light throttle engine speed less than 2,500 RPM
  • Vehicle accelerating with TP Angle between 45-65 percent and engine speed under 3,500 RPM
  • Vehicle accelerating with TP Angle above 65 percent and engine speed over 3,500 RPM
  • Wide open throttle (WOT)
  • Vehicle decelerating without throttle applied
IMT Valve Command Open
IMT Valve Command OFF
IMT Valve Solenoid Circuit Status Incomplete
IMT Valve Position Open
IMT Valve Feedback 8-12 momentarily during fist start-up
15-30%
Operating Conditions:  Vehicle accelerating with moderate throttle (TP sensor above 45 percent) engine speed above 1000 RPM.
IMT Valve Command Closed
IMT Valve Command ON
IMT Valve Solenoid Circuit Status OK
or
Incomplete
IMT Valve Position Closed
IMT Valve Feedback 70-90%
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.