Nominal vacuum at idle?
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Nominal vacuum at idle?
Going over OBD-II data at idle in my 2004 LS. Vaccum is around 16 in/Hg. Is this OK? I couldn't find the nominal vacuum or manifold pressure in my service manual.
RPM and timing advance are within normal ranges (~750rpm and 10 degrees). Long term fuel trim is around -15% at idle, but I am too novice to interpret this.
Outside air temperature was warm at the time of reading, around 85 F.
Never had a check engine light in nearly 2 years of driving.
RPM and timing advance are within normal ranges (~750rpm and 10 degrees). Long term fuel trim is around -15% at idle, but I am too novice to interpret this.
Outside air temperature was warm at the time of reading, around 85 F.
Never had a check engine light in nearly 2 years of driving.
Last edited by 323spicy; Jul 21, 2024 at 09:18 PM.
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