robgm
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- Jun 7, 2009
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- VZ Acclaim 2005
Another thread on fuel economy. So my VZ Acclaim (2005) 185,000km is starting to use bit too much fuel, around 15-16L/100km on 98RON. Goes down a bit on the freeway. I've done a lot of work; changed fuel injectors, coils, spark plugs about 9 months ago. Last few months; fuel filter, cleaned out PCV lines, and PCV value was completely blocked after 15 years so i cleaned it, drilled extra hole in the PCV valve, cleaned MAF (it didn't look dirty), checked air filter, replaced shocks, struts, front springs. After i did the injectors/coils/plugs i got under 12L/100km for a while. I'm thinking maybe the Oxygen (O2) sensors. They are originals....others on here mentioned change after 100,000km. I put my OBD2 on today (no error codes come up), from cold drove about 15 minutes. Attached is the graph. Does it indicate any issue with the 2 sensors in this car? From cold, over 15 minutes, they go between 0 - 0.9v seems normal is it? Thanks!