Is there sure a beast in the Aveo 1.6l? I want to run an onboard O2 sensor test and one stage of the test talks about removing the "fuel pressure regulator vacuum hose". Is there another vacuum hose I can use to vary the air/fuel mix ratio to see how it impacts the O2 sensor?
Thanks!
I can't find it either! There's got to be one.
The car uses a returnless fuel system, which means the fuel pressure regulator is located inside the gas tank and there is only a fuel feed line and no return line. I dont think you will find a vacuum hose for it.
> 2010 Mazdaspeed 3
- Fully built, GT35R, 500+ whp
> 2004 Hatchback 2.0L Turbocharged [RETIRED]
- T3/T4 T04E .60 A/R Compressor
- HKS SSQV, OBX Wastegate
- FMIC with 2.5" piping
- Tuned with Megasquirt II v3.57
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2.0L Turbocharged Hatch