Note On Intermittents

With engine running, manipulate O2 sensor, PCM wiring and connectors while observing PCM parameter P.1.4. If fault is induced, P.1.4 will jump to less than .37 volt and ECON status light will go off. Manipulate circuit No. 413 ground to engine, and look for a loose ground eyelet or ground eyelet installed at wrong location. If lean engine operation is suspected, perform PFI SYSTEM CHECK.

Fig 1: PCM Code E44, Schematic, Oxygen (O2) Sensor Lean Exhaust Signal

Fig 2: PCM Code E44, Flow Chart, Oxygen (O2) Sensor Lean Exhaust Signal

Fig 3: PCM Code E44