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Check engine problem

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mawhite8750

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I have a 2002 GTX 4-tec. The check engine light keeps coming on after riding for about 15 minutes. Have had it to dealer multiple times to clear codes and cannot find anything that should be causing this. Oil level correct, only Sea Doo oil. Changed temp sensor a while back. Only 100 hours on this and bought new. Frustrated! Today has P1202 fault code---oil tank pressure switch implausible or blow -by valve still closed. How do I fix this?
 
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It is a oil pressure sensor close to the oil fill. That will fix your problem. I have seen a blow by valve go bad but I have only seen one.
 
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