Notes On Intermittents

WARNING: This page is about a different car, the 1988 Cadillac Seville and 1988 Cadillac Eldorado. However, it is still accessible from the selected car via links, so may be relevant.

Check for binding throttle shaft and throttle blades, weak or distorted throttle spring, cruise control or throttle valve cable binding, or properly installed TPS. Intermittent code EO27 can be induced by resting foot on accelerator with key on/key off for 10 seconds, during key on cycle.

Fig 1: Schematic, Code EO27, Open Throttle Switch Circuit

Fig 2: Flow Chart, Code EO27, Open Throttle Switch Circuit

Fig 3: Flow Chart, Code EO27, Open Throttle Switch Circuit