New Yorker V6-201 3.3L VIN R FI (1992)
- Operate A/C Compressor Clutch relay (if selected)
Acceleration (Except Wide Open Throttle)
Note:
For Wide Open Throttle (WOT) operation, SEE OPEN LOOP MODES OF OPERATION.
PCM INPUT:
Powertrain Control Module (PCM) recognizes an abrupt increase in throttle opening, (TPS voltage increase), or drop in engine vacuum, (MAP
sensor voltage increase), as a demand for increased engine output to accelerate vehicle.
PCM OUTPUT:
PCM increases injector pulse width to accommodate increased fuel demand.
Deceleration
PCM MONITORS:
- Engine Temperature (ECT Sensor)
- Manifold Vacuum (MAP Sensor)
- Throttle Position (TPS)
- Exhaust Gas Oxygen Content (HO2S)
- A/C Switch Status
- Battery Voltage
- Camshaft and Crankshaft Position (CMP and CKP Sensors)
UNDER NORMAL DECELERATION, PCM:
Continues normal (reduced) injection.
De-energizes EGR system, by grounding Electronic EGR Transducer (EET) solenoid.
UNDER HARD DECELERATION, (CLOSED THROTTLE AND ABRUPT INCREASE IN MANIFOLD VACUUM) THE PCM:
Ignores oxygen sensor input, and initiates fuel cut-off strategy, firing injector only once per engine revolution.
Disables EGR system, by grounding EGR solenoid.
Disables EVAP purge system, by grounding EVAP solenoid.