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Post by TeaNazaR on Jul 21, 2010 12:36:13 GMT 8
Hi guys, I need some advise. My ride is cerato v2 manual 3yrs+.
Recently I noticed my narrowband a/f gauge has been swinging lean all the time during close loop idle/cruising. The only time it went up is during WOT. Usually if i WOT it will show rich but this time during WOT it's just indicating stoich??
i see that my fuel pressure is ok abt 42psi. vacuum also normal. nothing was changed recently n i even reset both the ecu and apexi neo but still showing lean though there's no CEL. i got no spark wrench to check the spark plug to confirm running lean.
so i suspect one of the sensor goin bad, o2 mayb. how much do u charge/labor for o2 sensor? im coming down this sat morning to do my servicing also. hope u can help to check further. pls advise, thanks...
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Harmony Motor
Motoring with Peace of Mind - Honesty, Sincerity and Integrity are our beliefs!
Posts: 1,761
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Post by Harmony Motor on Jul 25, 2010 14:02:23 GMT 8
Sorry for the late reply. what is your mileage? secondly, normal O2 sensor is not reliable in giving A/F reading. It is designed for the ECU to understand its language only. a width band O2 sensor is the correct equipment to use.
Having said that, if your mileage is high (above 60k km) then better do a check.
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Post by TeaNazaR on Jul 27, 2010 11:18:12 GMT 8
np broe. yeah stock o2 & gauge both narrowband so not accurate. forgot to add i've clocked 82k. will come down for a check. wats the damage like for o2 cerato v2 replacement+labor?
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Harmony Motor
Motoring with Peace of Mind - Honesty, Sincerity and Integrity are our beliefs!
Posts: 1,761
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Post by Harmony Motor on Jul 29, 2010 19:40:19 GMT 8
np broe. yeah stock o2 & gauge both narrowband so not accurate. forgot to add i've clocked 82k. will come down for a check. wats the damage like for o2 cerato v2 replacement+labor? I don't think your O2 sensor is giving you problem. Most likely you need to rejuvenate your engine and stuff. Come down and can have a full discussion.
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