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You are watching: 2004 chevy impala o2 sensor location


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I bought one of those ELM327 OBDII wireless adapters and the app for the phone (awesome) due to the fact that I can"t was standing seeing the examine engine light any more .Found that is a PO135 code (Sensor 1 , financial institution 1 O2 Sensor heater circuit) and since they space cheap sufficient (as opposed to the other causes) I have one comes .My inquiry is , where precisely is this one located ? I"m suspect it"s top top the radiator next of the engine where the manifold meets the crossover however a fast look last night didn"t reveal any kind of sensor . Additionally , walk this vehicle have an upstream sensor ~ above both financial institutions , or simply an upstream on the downpipe ?I"m hope to find an open heater circuit in the sensor . I"m not very happy with my city purpose of use , but an excellent hwy .Thanks .
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I bought one of those ELM327 OBDII wireless adapters and the app for the phone (awesome) since I can"t stand seeing the examine engine light any an ext .Found it is a PO135 password (Sensor 1 , bank 1 O2 Sensor heater circuit) and since they are cheap sufficient (as protest to the other causes) I have one comes .My question is , where specifically is this one situated ? I"m presume it"s on the radiator next of the engine where the manifold meets the crossover yet a fast look last night didn"t reveal any kind of sensor . Also , does this vehicle have an upstream sensor top top both financial institutions , or just an upstream top top the downpipe ?I"m hope to uncover an open up heater circuit in the sensor . I"m not very happy v my city purpose of use , but good hwy .Thanks .

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Features:152k miles together of 3/2015Engine swap 40k miles ago - Swap had actually 5k miles on it.TransGo transition Kit + Dex using + Wix filter + new GM pan + AC Delco Gasket together of 2/2015.New Rack and also Pinion.New Radiator (Lifetime Warranty) + Coolant do the washing up every summer.Firestone lifetime Alignment.-Mitch
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Yeah... It"s the radiator side one available through the exhaust manifold heat shield.The 2nd O2 is just prior to the cat.
Features:152k miles together of 3/2015Engine swap 40k miles ago - Swap had actually 5k mile on it.TransGo transition Kit + Dex using + Wix filter + brand-new GM pan + AC Delco Gasket together of 2/2015.New Rack and Pinion.New Radiator (Lifetime Warranty) + Coolant flush every summer.Firestone life time Alignment.-Mitch
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Features:152k miles together of 3/2015Engine swap 40k miles back - Swap had 5k mile on it.TransGo shift Kit + Dex through + Wix filter + brand-new GM pan + AC Delco Gasket together of 2/2015.New Rack and Pinion.New Radiator (Lifetime Warranty) + Coolant do the washing up every summer.Firestone lifetime Alignment.-Mitch
Correction second o2 is after the cat. That"s the whole purpose the o2 sensors! Is to compare both the upstream and downstream emissions and how fine the cat is working.Yup ~ above 3.4 and 3.8 it"s ~ above the firewall side just before the downpipe
2001 Impala LS
TransGO change kitSpectre Cone FilterThunderbolt be crazy Cat ZZP Alternator strength CableWagner Thermoquiet PadsKYB Strut add to (Rr)L67 happen Eng MountTinted tail lightsPainted TrimDipped Rims and emblems Led plate, full interior, trunk, and consoleBlack interior accents (handles and also switch panels)JBL GTO 6.5" and also 6x9" Sony MEX-GS600BT Hifonics Hifi 1500 (KnuKoncepts 4ga)Rockford P3
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