hello sifus,
I have a very worn out wira aeroback 1.6l auto. Currently i have two problems with this car.

1) Engine stalled when the gear is in N during braking/ idle in front traffic light. It only happened 4 times. Normally after the engine stalled, i just have to ignite the engine and it's ready to go. But the recent incident i was not able to start the engine at all. after like 5-10 mins i tried again and it works again. Checked with my mechanic and he suspects is the throttle body issue. he told me that the throttle body will cost about rm700. However, he said that he does not guarantee that will solve the problem. any suggestion what are the other parts that might cause the problem?

2) High fuel consumption. The FC of the car has gone from worse to worst. Previously, the car able to run 250km on rm50 of petrol but now only can run 150km on rm50 :S do you guys think this issue is related to the engine stalling issue?

Hope to get input from all the sifus here on what are the cheap solutions available for this car. Thinking to change car by early next year. But have to make sure this Wira can last until then.

Thanks!!

This post has been edited by lencent: Oct 22 2012, 10:44 AM

hmmm... when the stalling happened initially (1 month ago), i have sent the car to check and replaced the spark plugs, air filter, engine oil. Other things never touch before.

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Added on October 22, 2012, 10:43 amThis post has been edited by lencent: Oct 22 2012, 10:43 AM

The car does not vibrate badly during idling. It only vibrates horribly when it is going to stall...

i hv a quick read on the blog. but for my case, normally with aircon no problem ler...

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Added on October 22, 2012, 11:16 amthanks bro! any idea how much does it cost to do the cleaning outside? not a DIY fan...
the car mileage is about 196k km now.

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Added on October 22, 2012, 11:17 amfor the high FC, i thinking if it is due to faulty carburettor?

This post has been edited by lencent: Oct 22 2012, 11:17 AM

hi,
Not to doubt your valuable input, but why does the speed sensor will affect the stalling issue?

May i know roughly how much does it cost to change the O2 sensor?

thanks!

thanks mate. i have checked on some tutorials and they need some cleaner which i have no idea where to get it. normally what cleaner do you use to clean ur TB?

thanks!

noted. will try this weekend

too bad i from JB thanks for the info though!!

yea, just went through his Threebond carbon cleaner. sounds really promising will give it a try!

http://forum.lowyat.net/topic/1300861
Rm45 per bottle and seems like he will do it for you if you're in KL....

will get a technician to check that for me. but dont know any electrician around my area... have to check it out...

hi, what do you mean by 'service'? cleaning or replaced?

Regards.

finger crossed that my car will be the same as you ><

probably will try to clean the carbon built-up in TB first before trying other things. wanna keep the repair cost low >< have to save up for downpayment ><

hello guys, it happened again and based on observation, the engine will stall when the car brakes/ stop after cruising at about 80-90kmh. Is it due to the ECU/ sensor unable to detect the change and hence the mixing of the air-fuel is not correct which causes the engine to stall? sorry, noob in car here

This post has been edited by lencent: Oct 24 2012, 10:32 AM

still waiting for the threebond carbon cleaner i will update once i try that...

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Added on October 24, 2012, 11:07 ambut what makes me wonder is why do i have to wait for about 5-10mins before i can start moving the car again. as in, i can start the engine but the moment i switch to D, the engine will stall.

This post has been edited by lencent: Oct 24 2012, 11:07 AM

hi all, i have cleaned my TB. throttle response is better now, but idling with aircon N gear will maintain at about 700 to 800. is that ok? and i noticed that a breather hose connecting the rubber hose to the engine block has some cracks due to the age. would it be the root cause for the engine stalling issue?

hi all, it seems cleaning the TB doesnt solve the problem with high fuel consumption. any idea how to check if the O2 sensor is faulty? and how much to repalce it? thanks!

hey bro,
my car is now okay after changing the bloody TB which costs RM450 :S but it still suffers from serious loss of engine power...

i did not clean the speed sensor. i think you better get second opinion before changing the gearbox. i had similar issue last time and changed the gearbox only without changing anything else.