Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSCHRYSLER1995NEW YORKER V6-3.5L VIN FREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSRELAYS AND MODULES - COMPUTERS AND CONTROL SYSTEMSENGINE CONTROL MODULEDESCRIPTION AND OPERATIONMODES OF OPERATIONOPEN LOOPIGNITION SWITCH ON (ZERO RPM)
1995 Chrysler New Yorker V6-3.5L VIN F
Ignition Switch on (Zero RPM)
1995 Chrysler New Yorker V6-3.5L VIN FSECTION Ignition Switch on (Zero RPM)
This is an OPEN LOOP mode.
When the SFI system is ACTIVATED by the ignition switch, the following actions occur:
- The PCM preposition the idle air control (IAC) motor.
- The PCM reads atmospheric air pressure from the manifold absolute pressure (MAP) sensor and calculates the basic fuel strategy.
- The PCM monitors the throttle position sensor (TPS) and engine coolant temperature (ECT) sensor input. The PCM uses these inputs to modify fuel strategy.
- Oxygen sensor heating element is energized.
- On flexible fuel (FFV) vehicles, for 2 seconds, the methanol concentration sensor calibrates the PCM. During the calibration period the sensor sends 4.45 volts to the PCM as a correction factor. After the calibration period, the sensor output represents the methanol percentage in the fuel.
When the key is turned to the ON position, neither the Auto Shutdown (ASD) relay or the fuel pump relay are ACTIVATED. For this reason, battery voltage is not supplied to the ignition coil, fuel pump, injectors, oxygen sensor heater, or alternator field.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.