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Short term fuel readings
- Antarcticsub
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- cj1
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- Tyler
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- Full time HACK since 2012
6 years 10 months ago #25522
by Tyler
If these readings were taken from Global OBDII data, probably nothing. :silly: Any fuel trim PID you see with B1S1, B1S2, B2S1 or B2S2 aren't true fuel trim readings. They're misleading PIDs mandated by the OBDII standard, but don't necessarily reflect anything about the PCM's fuel control.
Is there a code or symptom you're chasing? Like cj1 asked, I'd be looking at the downstream voltage PIDs instead. Those are reliable.
Replied by Tyler on topic Short term fuel readings
What does the difference between these readings mean
If these readings were taken from Global OBDII data, probably nothing. :silly: Any fuel trim PID you see with B1S1, B1S2, B2S1 or B2S2 aren't true fuel trim readings. They're misleading PIDs mandated by the OBDII standard, but don't necessarily reflect anything about the PCM's fuel control.
Is there a code or symptom you're chasing? Like cj1 asked, I'd be looking at the downstream voltage PIDs instead. Those are reliable.
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