Test Conditions
WARNING: This page is about a different car, the 1995 Cadillac DeVille. However, it is still accessible from the selected car via links, so may be relevant.
Codes P021, P022, P024, P026 and P027 not set, throttle position switch closed, vehicle speed less than or equals zero MPH, battery voltage greater than or equal to 11 volts, actual idle speed is at least 152 RPM different from desired RPM, and idle speed control start-up delay over. Engine not receiving power steering load. PCM not commanding an idle speed anticipate.