Homeβ€Ί Emission Control > Sensorsβ€Ί Denso 234-2001 Oxygen Sensor - Upstream
Part #: 234-2001

Denso 234-2001 Oxygen Sensor - Upstream

OE Style, Upstream
180 vehicles fit this part
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OE Direct Replacement β€” Bolt-on fit, no modifications needed
OE Style, Upstream
Fitment: Daewoo, Cadillac, Buick, Oldsmobile, Pontiac, Chevrolet, and GMC, Lanos, Leganza, Nubira, DeVille, 60 Special, Eldorado, Seville, Allante, Fleetwood, Commercial Chassis, Skyhawk, Firenza, J2000, Century, Electra, Estate Wagon, LeSabre, Regal, Riviera, Skylark, Bel Air, Camaro, Caprice, Chevette, Citation, Corvette, El Camino, Impala, LUV, Malibu, Monte Carlo, Caballero, 98, Custom Cruiser, Cutlass, Cutlass Calais, Cutlass Cruiser, Cutlass Supreme, Delta 88, Omega, Toronado, Acadian, Bonneville, Catalina, Firebird, Grand LeMans, Grand Prix, Laurentian, LeMans, Parisienne, Phoenix, T1000, Monza, Cutlass Salon, Starfire, Grand Am, and Sunbird
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Overview of Denso OE Style Oxygen Sensor 234-2001

The Denso OE Style Oxygen Sensor 234-2001 is designed specifically for select Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models. This non-heated oxygen sensor features a 14.8-inch wiring harness and a threaded mounting type, ensuring precise fitment and reliable emission control performance.

  • Non-heated oxygen sensor with 2-wire configuration
  • Specific fit for various GM makes and models
  • 14.80-inch wiring harness length for optimal installation
  • Male connector with 0.708-inch thread diameter
  • Threaded mounting type for secure attachment

Detailed Product Description

The Denso 234-2001 oxygen sensor is engineered to meet the exact specifications of original equipment for a range of GM vehicles including Buick LeSabre, Chevrolet Camaro, Cadillac DeVille, Pontiac Firebird, and more. This sensor uses a non-heated design with two wires and a male connector, providing accurate oxygen level readings to the engine control unit. The 14.80-inch wiring harness length allows for proper routing and connection without excess slack or tension. Its threaded mounting type and 0.708-inch thread diameter ensure a secure and leak-free installation in the exhaust system.

This oxygen sensor is part of Denso's OE Style product line, which focuses on delivering components that closely replicate original equipment specifications. The OE Style line is intended for direct replacement applications, offering compatibility and performance that align with factory standards.

Applications and Common Issues Addressed

  • Restores accurate air-fuel mixture readings for improved engine efficiency
  • Resolves check engine light triggers related to oxygen sensor faults
  • Helps reduce emissions by providing precise exhaust gas data
  • Corrects poor fuel economy caused by faulty sensor signals
  • Eliminates rough idling or engine hesitation linked to sensor malfunction

Installation Notes and Tips

  • Ensure vehicle compatibility by verifying make, model, and year before installation
  • Use appropriate tools to avoid damaging the sensor threads during mounting
  • Disconnect the battery before sensor replacement to prevent electrical issues
  • Check wiring harness length and connector type for proper fitment
  • Follow manufacturer torque specifications to secure the sensor

Quality Assurance and Warranty

Denso OE Style oxygen sensors are manufactured to meet stringent quality standards, ensuring reliable performance and durability. The 234-2001 sensor undergoes rigorous testing to comply with emission control requirements. While specific warranty details may vary, Denso products typically include a limited warranty against defects in materials and workmanship, providing confidence in the sensor's longevity and function.

BrandDenso
Part Number234-2001
PositionOE Style, Upstream
Connector GenderMale
Mounting TypeThreaded
Sensor TypeNon Heated
Thread Diameter0.708
Universal Or Specific FitSpecific
Wire Quantity2
Wiring Harness Length14.80

This part fits 180 vehicles. Search below:

YearMakeModelPositionNotes
1995CadillacDeVilleUpstreamOE Style
1994CadillacDeVilleUpstreamOE Style
1993Cadillac60 SpecialUpstreamOE Style
1993CadillacDeVilleUpstreamOE Style
1993CadillacEldoradoUpstreamOE Style
1993CadillacSevilleUpstreamOE Style
1992CadillacAllanteUpstreamOE Style
1992CadillacDeVilleUpstreamOE Style
1992CadillacEldoradoUpstreamOE Style
1992CadillacFleetwoodUpstreamOE Style
1992CadillacSevilleUpstreamOE Style
1991CadillacAllanteUpstreamOE Style
1991CadillacDeVilleUpstreamOE Style
1991CadillacEldoradoUpstreamOE Style
1991CadillacFleetwoodUpstreamOE Style
1991CadillacSevilleUpstreamOE Style
1990CadillacAllanteUpstreamOE Style
1990CadillacDeVilleUpstreamOE Style
1990CadillacEldoradoUpstreamOE Style
1990CadillacFleetwoodUpstreamOE Style
1990CadillacSevilleUpstreamOE Style
1989CadillacAllanteUpstreamOE Style
1989CadillacDeVilleUpstreamOE Style
1989CadillacEldoradoUpstreamOE Style
1989CadillacFleetwoodUpstreamOE Style
1989CadillacSevilleUpstreamOE Style
1988CadillacAllanteUpstreamOE Style
1988CadillacDeVilleUpstreamOE Style
1988CadillacEldoradoUpstreamOE Style
1988CadillacFleetwoodUpstreamOE Style
1988CadillacSevilleUpstreamOE Style
1987CadillacAllanteUpstreamOE Style
1987CadillacEldoradoUpstreamOE Style
1987CadillacFleetwoodUpstream2 Lead Sensor; OE Style
1986CadillacFleetwoodUpstream2 Lead Sensor; OE Style
1984CadillacCommercial ChassisUpstreamOE Style
1984CadillacDeVilleUpstreamOE Style
1984CadillacEldoradoUpstreamOE Style
1984CadillacFleetwoodUpstreamOE Style
1984CadillacSevilleUpstreamOE Style
1983CadillacCommercial ChassisUpstreamOE Style
1983CadillacDeVilleUpstreamOE Style
1983CadillacEldoradoUpstreamOE Style
1983CadillacFleetwoodUpstreamOE Style
1983CadillacSevilleUpstreamOE Style
1982BuickSkyhawkUpstreamOE Style
1982CadillacCommercial ChassisUpstreamOE Style
1982CadillacDeVilleUpstream2 Lead Sensor; OE Style
1982CadillacEldoradoUpstream2 Lead Sensor; OE Style
1982CadillacFleetwoodUpstream2 Lead Sensor; OE Style
1982CadillacSevilleUpstream2 Lead Sensor; OE Style
1982OldsmobileFirenzaUpstreamOE Style
1982PontiacJ2000Upstream2 Lead Sensor; OE Style
1981BuickCenturyUpstreamOE Style
1981BuickLeSabreUpstreamOE Style
1981BuickRegalUpstreamOE Style
1981BuickRivieraUpstreamOE Style
1981BuickSkylarkUpstreamOE Style
1981CadillacCommercial ChassisUpstreamOE Style
1981CadillacDeVilleUpstreamOE Style
1981CadillacEldoradoUpstreamOE Style
1981CadillacFleetwoodUpstreamOE Style
1981CadillacSevilleUpstreamOE Style
1981ChevroletBel AirUpstream2 Lead Sensor; OE Style
1981ChevroletCamaroUpstream2 Lead Sensor; OE Style
1981ChevroletCapriceUpstream2 Lead Sensor; OE Style
1981ChevroletChevetteUpstream2 Lead Sensor; OE Style
1981ChevroletCitationUpstream2 Lead Sensor; OE Style
1981ChevroletCorvetteUpstreamOE Style
1981ChevroletEl CaminoUpstream2 Lead Sensor; OE Style
1981ChevroletImpalaUpstream2 Lead Sensor; OE Style
1981ChevroletLUVUpstream2 Lead Sensor; OE Style
1981ChevroletMalibuUpstream2 Lead Sensor; OE Style
1981ChevroletMonte CarloUpstream2 Lead Sensor; OE Style
1981Oldsmobile98UpstreamOE Style
1981OldsmobileCustom CruiserUpstreamOE Style
1981OldsmobileCutlassUpstreamOE Style
1981OldsmobileCutlass CalaisUpstreamOE Style
1981OldsmobileCutlass CruiserUpstreamOE Style
1981OldsmobileCutlass SupremeUpstreamOE Style
1981OldsmobileDelta 88UpstreamOE Style
1981OldsmobileOmegaUpstreamOE Style
1981OldsmobileToronadoUpstreamOE Style
1981PontiacAcadianUpstream2 Lead Sensor; OE Style
1981PontiacBonnevilleUpstream2 Lead Sensor; OE Style
1981PontiacCatalinaUpstream2 Lead Sensor; OE Style
1981PontiacFirebirdUpstream2 Lead Sensor; OE Style
1981PontiacGrand LeMansUpstream2 Lead Sensor; OE Style
1981PontiacGrand PrixUpstream2 Lead Sensor; OE Style
1981PontiacLaurentianUpstream2 Lead Sensor; OE Style
1981PontiacLeMansUpstream2 Lead Sensor; OE Style
1981PontiacParisienneUpstream2 Lead Sensor; OE Style
1981PontiacPhoenixUpstream2 Lead Sensor; OE Style
1981PontiacT1000Upstream2 Lead Sensor; OE Style
1980BuickCenturyUpstreamOE Style
1980BuickLeSabreUpstreamOE Style
1980BuickRegalUpstreamOE Style
1980BuickRivieraUpstreamOE Style
1980BuickSkyhawkUpstreamOE Style
1980BuickSkylarkUpstreamOE Style
1980CadillacCommercial ChassisUpstreamOE Style
1980CadillacDeVilleUpstreamOE Style
1980CadillacEldoradoUpstreamOE Style
1980CadillacFleetwoodUpstreamOE Style
1980CadillacSevilleUpstreamOE Style
1980ChevroletCamaroUpstream2 Lead Sensor; OE Style
1980ChevroletCapriceUpstream2 Lead Sensor; OE Style
1980ChevroletChevetteUpstream2 Lead Sensor; OE Style
1980ChevroletCitationUpstream2 Lead Sensor; OE Style
1980ChevroletCorvetteUpstreamOE Style
1980ChevroletEl CaminoUpstream2 Lead Sensor; OE Style
1980ChevroletImpalaUpstream2 Lead Sensor; OE Style
1980ChevroletLUVUpstream2 Lead Sensor; OE Style
1980ChevroletMalibuUpstream2 Lead Sensor; OE Style
1980ChevroletMonte CarloUpstream2 Lead Sensor; OE Style
1980ChevroletMonzaUpstream2 Lead Sensor; OE Style
1980Oldsmobile98UpstreamOE Style
1980OldsmobileCustom CruiserUpstreamOE Style
1980OldsmobileCutlassUpstreamOE Style
1980OldsmobileCutlass CalaisUpstreamOE Style
1980OldsmobileCutlass CruiserUpstreamOE Style
1980OldsmobileCutlass SalonUpstreamOE Style
1980OldsmobileCutlass SupremeUpstreamOE Style
1980OldsmobileDelta 88UpstreamOE Style
1980OldsmobileOmegaUpstreamOE Style
1980OldsmobileStarfireUpstreamOE Style
1980OldsmobileToronadoUpstreamOE Style
1980PontiacAcadianUpstream2 Lead Sensor; OE Style
1980PontiacBonnevilleUpstream2 Lead Sensor; OE Style
1980PontiacCatalinaUpstream2 Lead Sensor; OE Style
1980PontiacFirebirdUpstream2 Lead Sensor; OE Style
1980PontiacGrand AmUpstream2 Lead Sensor; OE Style
1980PontiacGrand LeMansUpstream2 Lead Sensor; OE Style
1980PontiacGrand PrixUpstream2 Lead Sensor; OE Style
1980PontiacLaurentianUpstream2 Lead Sensor; OE Style
1980PontiacLeMansUpstream2 Lead Sensor; OE Style
1980PontiacParisienneUpstream2 Lead Sensor; OE Style
1980PontiacPhoenixUpstream2 Lead Sensor; OE Style
1980PontiacSunbirdUpstream2 Lead Sensor; OE Style
1980PontiacSunbirdUpstreamOE Style
1979BuickCenturyUpstreamOE Style
1979BuickLeSabreUpstreamOE Style
1979BuickRegalUpstreamOE Style
1979BuickRivieraUpstreamOE Style
1979BuickSkyhawkUpstreamOE Style
1979BuickSkylarkUpstreamOE Style
1979ChevroletEl CaminoUpstream2 Lead Sensor; OE Style
1979ChevroletMalibuUpstream2 Lead Sensor; OE Style
1979ChevroletMonte CarloUpstream2 Lead Sensor; OE Style
1979ChevroletMonzaUpstream2 Lead Sensor; OE Style
1979Oldsmobile98UpstreamOE Style
1979OldsmobileCustom CruiserUpstreamOE Style
1979OldsmobileCutlassUpstreamOE Style
1979OldsmobileCutlass CalaisUpstreamOE Style
1979OldsmobileCutlass SalonUpstreamOE Style
1979OldsmobileCutlass SupremeUpstreamOE Style
1979OldsmobileDelta 88UpstreamOE Style
1979OldsmobileOmegaUpstreamOE Style
1979OldsmobileStarfireUpstreamOE Style
1979OldsmobileToronadoUpstreamOE Style
1979PontiacBonnevilleUpstreamOE Style
1979PontiacBonnevilleUpstream2 Lead Sensor; OE Style
1979PontiacCatalinaUpstreamOE Style
1979PontiacCatalinaUpstream2 Lead Sensor; OE Style
1979PontiacFirebirdUpstreamOE Style
1979PontiacFirebirdUpstream2 Lead Sensor; OE Style
1979PontiacGrand AmUpstream2 Lead Sensor; OE Style
1979PontiacGrand AmUpstreamOE Style
1979PontiacGrand LeMansUpstreamOE Style
1979PontiacGrand LeMansUpstream2 Lead Sensor; OE Style
1979PontiacGrand PrixUpstream2 Lead Sensor; OE Style
1979PontiacLaurentianUpstream2 Lead Sensor; OE Style
1979PontiacLaurentianUpstreamOE Style
1979PontiacLeMansUpstreamOE Style
1979PontiacLeMansUpstream2 Lead Sensor; OE Style
1979PontiacParisienneUpstream2 Lead Sensor; OE Style
1979PontiacParisienneUpstreamOE Style
1979PontiacPhoenixUpstreamOE Style
1979PontiacSunbirdUpstreamOE Style
1979PontiacSunbirdUpstream2 Lead Sensor; OE Style

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

213-2859213-32225165119AFS23AFS5P

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.