OXYGEN SENSOR TEST Questions

Service Engine Soon Light Is Illuminated. Took Truck To A Repair Shop For A Diagnostic And Trouble Codes Read: Po131 - Bank 1 Sensor 1 And...

I Recently Bought This Truck And Failed A State Emissions Test. I Replaced The Spark Plugs, Wires, Cap And Rotor, Did An Oil Change, And...

I Have Changed The A/f Sensor And O2 Sensor And Did An Evap Leak Test And Still Getting The P1135 Code Back As Soon As I Clear It. I Have...

I Am Trying To Complete My Safety And Emissions Inspection But Have The Following Issues. I Pass The Emissions, Catalytic Converter And Egr...

My Cel Came On And I Had It Coded. It Was Code Po141 And The Downstream O2 Sensor And One Was Bought And Put On. No Big Deal. However, When...

When I'm Driving It Runs Fines But When I Get To A Stop Light And I'm Not Pressing The Gas The Car Will Putt Like Its Not Getting Any Gas...

I've Changed Plugs, Wires, Coil, Oil Pump, Head,relay, O2 Censor, Brain Box,compression Test Is Right On,catilic Convertor Is Not An Issue....

The Racing Motor Has Been Going On For Quite A While. I Have Had 3 Mechanics Work On It, Each Thought They Knew What The Problem Was But...

I Have A Co2 Leak That With A Smoke Test Was Confirmed. It’s Coming From The Throttle Body. I Cannot Pass Smog. So My Question Is, Is...

I Took It To A Mechanic And Had Them Put It On The Computer He Said The Alterntor Was Bad And Battery , I New The Battery Was , But Not The...