Re: SMOG.. . Heeeeeeelp!
Theoretically, the higher fuel pressure regulator should cause a richer mix, but the oxygen sensors should see it and then the computer should lean it out, but who knows if that actually works.
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2007 GS 450h-Active Stabilizer/Radar cruise
1994 L Blue 3.70 VTD
ASE Master Automobile
ASE Advanced Level Specialist
Toyota Master Diagnostic Technician (former life)
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