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 MANUALSDODGE AND RAM1996CARAVAN V6-229 3.8LREPAIR AND DIAGNOSISSPECIFICATIONSELECTRICAL SPECIFICATIONSCOMPUTERS AND CONTROL SYSTEMSOXYGEN SENSOR
1996 Dodge and Ram Caravan V6-229 3.8L
Oxygen Sensor
1996 Dodge and Ram Caravan V6-229 3.8LSECTION Oxygen Sensor
Air/Fuel Oxygen Exhaust
Ratio Sensor Voltage Gas Content
12.0:1 1.0 Volts [1] 5.0% CO [2]
13.0:1 0.85 Volts 3.8% CO [2]
14.0:1 0.65 Volts 1.3% CO [2]
14.7:1 0.45 Volts [5] 0.1% CO [2]
15.0:1 0.35 Volts 2.0% O2 [3]
16.0:1 0.25 Volts 3.0% O2 [3]
17.0:1 0.10 Volts [4] 4.0% O2 [3]
Remarks
[1] Full rich condition.
[2] CO: Carbon monoxide, is a sign of incomplete ignition, (not enough oxygen to burn all the hydrocarbons in cylinder).
[3] O2: Oxygen left over after all hydrocarbons have been burned.
[4] Full lean condition.
[5] Stoichiometric point: Output voltages below 0.45 volts indicate a lean condition, and output voltages over 0.45 volts indicate a rich condition.
NOTE: Both lean and rich conditions are usually accompanied by high Hydrocarbon (HC) readings. Due to not enough fuel, (lean misses), or too much fuel, (not enough oxygen to burn all hydrocarbons).
RENDER: 1.0x
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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.