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Low battery / alternator voltage increasing STFT at idle?

  • Smeter12
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3 years 8 months ago #53401 by Smeter12
Low battery / alternator voltage increasing STFT at idle? was created by Smeter12
If you have low battery / alternator voltage (i.e. 11 volts) while the vehicle is running at idle - could this be a likely scenario for your fuel trims increasing at idle?

As always - thoughts appreciated.

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3 years 8 months ago #53445 by Dtnel
Replied by Dtnel on topic Re:Low battery / alternator voltage increasing STFT at idle?
Generally I'd resolve the alternator issues first before trying to address fuel trim issues.

Sounds as if you may have a bad alternator, battery. I'd check those first then circle back to the fuel trims.

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