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Home >> Chevrolet >> 2001 >> Camaro Base, 2D Convertible, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 7 (Engine Control System Self-Diagnostics - 5.7L) >> Diagnostic Tests >> DTC P0506: Idle Speed Low ("Y" Body) >> Diagnostic Procedures

Diagnostic Procedures

WARNING: This page is about a different car, the 2000 Pontiac Firebird, 2000 Chevrolet Corvette, and 2000 Chevrolet Camaro. However, it is still accessible from the selected car via links, so may be relevant.
  1. Perform On-Board Diagnostic (OBD) system check. See ON-BOARD DIAGNOSTIC (OBD) SYSTEM CHECK  under SELF-DIAGNOSTIC SYSTEM. After performing OBD system check, go to next step.
  2. Start engine. Using scan tool, command RPM from 500 RPM up to 1500 RPM, then 1500 RPM to 500 RPM. Repeat 2 times and exit from test. If RPM change responded to within 100 RPM of each command, see DIAGNOSTIC AIDS . If RPM does not respond as commanded, go to next step.
  3. If engine RPM is too high (greater than 100 RPM), go to next step. If RPM does not change significantly, go to step  5.
  4. Check for vacuum leaks, throttle plates not closing properly or for faulty PCV valve. Repair as necessary. After repairs, go to step  6.
  5. Check for excessive deposits in throttle Body. Check for parasitic load on engine (i.e., transmission problem). Repair as necessary. After repairs, go to next step.
  6. Using scan tool, select DTC, CLEAR INFO function. Start and warm engine to normal operating temperature. Select DTC, SPECIFIC, then enter this DTC. Operate vehicle within conditions for setting this DTC. If scan tool indicates that this test ran and passed, go to next step. If scan tool does not indicate that this test ran and passed, repeat step  2.
  7. Using scan tool, select CAPTURE INFO, REVIEW INFO function. If any undiagnosed DTCs are displayed, go to applicable DTC test.
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