Oldsmobile Questions? Ask a Mechanic for Answers ASAP
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The code 33 can set due to either a failing TP sensor or the Vref voltage to it being low , in order to determine which it is you are going to need to do some testing, I have enclosed the steps in the link below, copy and paste the steps to your browser to open and view them.https://dl.dropboxusercontent.com/u/104923897/Code%2022%20Sept%205.pdf