[quote=Dickong,Sep 4 2012, 05:25 PM]
This morning my car suddenly jerking n when moving slow press throttle paddle feel like no power at all, n send to Toyota service for checking n was told the 2pcs of o2 sensor n MAF sensor spoilt. Need to change n cost RM1800+ n not including workmanship. Wonder why 3 sensor at one go. No choice n have to place order, 2moro only can arrive the spare parts, Hope everything will be fine after changing.Anyone facing this problem before n why the sensor so expensive.
[/quote]
wah..really bad luck... do you have any engine check light? how is your car FC doing before and after replace the 2 O2 sensor and a MAF sensor?
MAF will be spoil in few ways like over oil your KNN filter, use the wrong type of cleaning chemical to clean your MAF sensor or damage during cleaning.
it also could be your throttle body electronic chip damage.
the price is about there the 1 really expensive is O2 sensor.
[quote=Dickong,Sep 4 2012, 06:12 PM]Bro, my KNN air filter clean every 8-9k n throttle body clean every 10-15k interval
[/quote]
wah you really clean your filter and throttle body, have you check how long can a KNN filter last and how many time can be clean? as we know nothing can last forever....
[quote=kenji1903,Sep 4 2012, 06:28 PM]meaning not advisable to change to KNN?
[/quote]
can be clean but during oiling the filter maybe over do it....
[quote=Dickong,Sep 4 2012, 06:41 PM][quote=kenji1903,Sep 4 2012, 06:28 PM]
meaning not advisable to change to KNN?
Maybe u r right regarding the KNN filter or the stupid SA simply trying on trial n error becos i remember i ask him after changing the o2 sensor n Map sensor, is the throttle going to be normal, simply answer maybe n not sure. WTH
[/quote]
yes there dont have correct answer for this it could be your throttle body electronic chip...... before change do SA show you the error code that cause your engine jerk?
some time there dont have strait answer for your problem.
[quote=dtna7,Sep 4 2012, 08:51 PM]i did my research on
K&N filters before purchasing them.
» Click to show Spoiler - click again to hide... «
not a single car problem was reported to be caused by the filter.
only research papers stating that its not blocking 99.9% compared to the stock ones.
but hey, if you wear a mask that blocks 99.9% of particles, breathing ain't gonna be any good either
I'm pretty sure a reputable company who has been doing filters for so many years knows what they are doing
Bro are you sure you did not "over-oiled" the filter?
it has to be completely dry before placing them back in again
what i did hear was an over-oiled K&N screwing up the sensors though
do update us if you found out the cause though, its gonna be real helpful as a lesson for us to prevent this costly replacement
[/quote]
you are right but filter like this do the increase power and FC?
Added on September 4, 2012, 10:47 pmi found this from youtube for members looking for aftermarket or performance filter and plan to have cold air intake.
enjoy....
http://www.youtube.com/embed/PAIxeQUSg-Qhttp://www.youtube.com/embed/gCi2yo4UqPIThis post has been edited by vios2002: Sep 5 2012, 11:25 AM 
Aug 13 2012, 03:28 PM, updated 12y ago
Vios_07_maintenance_schedule_Jul_2012.pdf ( 38.87k )
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the new owner still didnt change it... 
... (noticed a layer of paint on the place. no more rust at the hub... 
).. have to clean it up myself.
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