Po 133 means front oxygen sensor signal is faulty, replace the front oxygen sensor that will solve your problem,you will have to reset computer monitoring system, may have to have a garage do this unless you have a scan tool, or replace sensor and drive with the check engine light on, while driving computer is always testing system, when it sees sensor working good it will shut light off. this will save you $$, but it may take a few days of driving,hope this helps.
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What type engine is in this car??
code P0133 stating a slow response back to the onboard computer bank 1 sensor 1 this sensor would be the 1st sensor closest to the exhaust manifold toward the engine's side depends on the car type and engine size it varies you do have to make sure first you have a good solid connection check and clean or unplug and plug about 4 to 5 times can do the cleaning trick otherwise most likely oxygen sensor might do the trick for you good luck
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