Keep the fuel mixture dialed in with the DENSO Auto Parts Oxygen Sensor 234-4590 — a direct-fit Caravan sensor that measures the oxygen left in the exhaust and feeds that signal to the engine computer for fuel-trim control. Mounted upstream (ahead of the catalytic converter), this 4-wire heated, narrow-band unit drops right in on the 2003 Chrysler Voyager (L4-2.4L) and 2003 Dodge Caravan (L4-2.4L).
An aging upstream sensor can send a slow or skewed signal, so if a failed oxygen sensor is the cause of your rough running or an illuminated check-engine light, this is the part that replaces it. Country of origin: United States.
This part cross-references / interchanges with the following part numbers:
Where does this oxygen sensor mount?
It is the upstream sensor, installed ahead of the catalytic converter. It threads into place using its 0.708 in threaded mount.
Does this fit my Voyager?
Yes — this Voyager sensor is a direct-fit replacement for the 2003 Chrysler Voyager with the L4-2.4L engine, and the 2003 Dodge Caravan with the L4-2.4L engine.
How many wires does it have?
It is a 4-wire heated, narrow-band oxygen sensor with a female connector and an 11.81 in wiring harness.
What does an upstream oxygen sensor do?
It measures the oxygen remaining in the exhaust and sends that signal to the engine computer, which uses it to control the air-fuel ratio for fuel trim.
What are signs this sensor may need replacing?
An illuminated check-engine light, rough running, or reduced fuel economy can indicate a failing oxygen sensor. Diagnose the cause first, since these symptoms have other possible sources.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
