- Mar 18, 2006
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- Members Ride
- Slug powered VZ, Cross 8 VZ, VE Calais & ya mum.
Important to understand that if the readings are not ideal, it doesn't mean the problem is the O2 sensors. They may well be reading what they are designed to do and the problems can easily be elsewhere.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!
Like fault codes don't tell you something is broken. They tell you info that something is not getting ideal readings.