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PY Online Forums - Bringing the Pontiac Hobby Together > General Classic PONTIAC TECH > Pontiac - Street > Not Pontiac, reset Fuel composition sensor on 2013 tahoe?
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Old 12-22-2023, 04:45 PM
george kujanski's Avatar
george kujanski george kujanski is offline
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Normal cold start this morning. Interesting how a weird sensor reading could foul up normal operation. I only noticed the difference on a cold start, then did a youtube search for a P0175 error. I also did not get the error immediately either. I reset the power train error and did not get a MIL afterward, even while driving while Long Term Fuel Trim was out of whack.

george

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Old 12-22-2023, 05:54 PM
MatthewKlein MatthewKlein is offline
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Quote:
Originally Posted by george kujanski View Post
Normal cold start this morning. Interesting how a weird sensor reading could foul up normal operation. I only noticed the difference on a cold start, then did a youtube search for a P0175 error. I also did not get the error immediately either. I reset the power train error and did not get a MIL afterward, even while driving while Long Term Fuel Trim was out of whack.

george
Alcohol runs WAY richer than gasoline

So that alcohol % was flooding the engine. You might get slightly better mileage now.

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