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2008 Saturn Aura - P0068

Fishinguy40
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Fishinguy40 Rising Star

Fishinguy40

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Daughter called last night and said the car was running really bad. She could only go 10mph and dash lights lit up. Service traction control and reduced engine power.

I drove out to where she was and plugged in a Bluetooth ELM327 code reader that works with my Android phone. The code P0068 - Throttle Position Correlation came up. No other codes. Naturally the car started and ran fine as I drove it back home. I suspect the TPS but understand that it could also be the MAF or MAP sensor too. I will disassemble the air intake and inspect for blockage and possible vacuum leaks.

My question is, how can I determine which sensor it is if I don't find any vacuum leaks or other mechanical issue? There was data stored along with the code such as engine load, etc. I can't remember everything. And I cannot access that data now. I will have to reconnect to the car and pull the code again to see it. These Bluetooth ELM327 code readers allow you to view real time data but I'm not sure how to interpret much of it. Looking for some insight.

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