how much is the new myvi o2 sensor? which part of the probe that have to modify? sensor head or the sensor tapak? too big? too small? tapak size too wide or too narrow? pls share more info as i guess a lot of us have aged o2 sensor.
Insanely High 4AFE Fuel Consumption
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New Myvi sensor costs RM180 only in Sabah. Okay... To explain the modification, it's like this.
Generally there are 2 shapes of sensors. The stick type where u just plug and play and the another more complicated type (stick with bracket). The Myvi is using the first type where u can just screw the sensor into the hole while my AE111 uses the second type where under the probe, there is a bracket (metal plate with 2 holes for screw attachments). So to let the Myvi sensor fit, all you have to do is just insert a metal plate and the bottom of the probe and then make 2 hole on each side of the metal plate (left and right) to screw it to the exhaust pipe. It's hard to picture... I'll try upload pictures when i'm free. I found one problem in doing this that is the surface area of the O2 sensor being reduces due to the space being taken up by the attached bracket. But it is just minor and the technician said that it is okay...
This is one weakness of the 2nd generation 4AFE engine. The sensors are different and difficult to source. Going for original UMW is insane. Most of the universal O2 sensor sold in the market today are the stick type (just plug and play). Besides that, I found out that this 2nd generation 4AFE is not as smooth and refined at high revs due to the master and slave cam system instead of belt system camshaft. You can hear the gear whine sound when you rev high above 4k rpm...
Anyways, I am still testing my FC after this fix. But based one the needle, it seems like there is no change. But I'll wait until the full tank is gone to get the accurate FC. Besides that, my idle is still unstable. If it goes one like that, I am suspecting that the wiring that goes from the O2 sensor to ECU has a problem and not the O2 sensor...
Headache and being poor because of this shitty FC...
LOL.. U did not test the O2 sensor is working or not after install..? giving the right signal..?:hmmmm:
I wanted to test... but the technician said no need. Sure ok =.=. So did not test... Haiz... Looks like the FC still same... If like that, I don't know what else is the problem now. The wiring from sensor to ECU shouldn't have a problem because the other day, the signal is inconsistent. If wiring problem, there should be no signal at all...
Damn ~
Ermm...:hmmmm: Did u reset the ecu..? maybe u hav 2 try test ur ecu bro.. as i know some ppl got issue with the ecu also.
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I mean... What could possibly happen to the ECU? It's just a circuit board and it's not programmable like e-manage or something. So how could the programme run off from the original factory settings? o.O ?
ECU after long time like all electronics may have capacitor bursting or transistor crack. There may also be other damages such as the oxidation of the traces etc. Anyway you can try to reset your ECU also plug out the fuse for around 10-15 minutes.
Yes over time ecu will spoiled also.. like 1st batch silvertop ecu. Try reset the ecu by removing EFI fuse, put bac after 15min. After that mark the FC if still same then need 2 try other ecu.
How to remove EFI fuse ? The fuse located at where ? At the engine bay or near the driver seat ?
---------- Post added at 08:10 AM ---------- 6 hour anti-bump limit - Previous post was at 07:00 AM ----------
Oh ya btw, to reset the ECU just remove the negative connector from the battery for a few hours .. probably overnight .. then its done
---------- Post added at 08:10 AM ---------- 6 hour anti-bump limit - Previous post was at 07:00 AM ----------
Oh ya btw, to reset the ECU just remove the negative connector from the battery for a few hours .. probably overnight .. then its done
Yes u can do that too but then u will hav 2 set the radio bac etc.. Easier just remove the fuse located at engine bay mark EFI.
Nevermind, cause I dont listens to radio .. radio likes to broadcast songs that I hate haha .. prefer cd :D HEY ! I just reset my ecu .. now my car response damn good .. even at 5th gear give provides much torque that I had lost years ago !
Since it got the standard reading, give the ECU some time for it to re-learn itself.. :)
Still no feedback from xMika..maybe he's happy dy? heheh..
- Dec 1, 2008
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wow..
much more bad compared to my 3sgte..
if it is o2 sensor problem, better fix it as soon as possible
Haha .. waiting for my feedback ahh .. Ok just be honest, my fc has not improved at all LOL !!! My o2 sensor i think rosak for few years already .. i just got this car since last year. When 2 of my sisters drive this car, they dont give a damn about this car. Girls mah .. duno how to appreciate cars. Now I only know the problem of this car. I think my dad wasted more than RM3000 worth of petrol already ... he always say that this car is a 2.0liter car, somemore 19 years old already .. high fuel consumption is normal .. I told him that it could be O2 sensor problem .. he just wouldnt listens to me ... because I told him O2 sensor could cost a few hundred.. I'M DARN ANGRY !!! My dad is mmg like that .. his toyota unser's engine oil kosong until one drip also no more already he still dare to drive for about 3 weeks .. then complain about the car losing power WTF !!! When I check for him, I'm shocked .. I told him that engine oil no more, he say nvrmind la inside the engine got reserve tank !!!!!!!! THEN DRIVE SOMEMORE CB !!
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