Weird Problem With My Car

[speedking]

my car check engine light wont turn off....then car cannot start....even can start also straight away die off...it just die off like that...like u turn off ur key, not jerk until die...why ar...

if the check engine light turn off itself...then the car can start no problem....but sometimes it still die off in the middle of the road while accelerating...and the check engine light turns on agian...

i have let my mech check...he tested my battery...it shows 13.9V...he say the altenator is over charging it....well that might be the one of the problem...but he say there is no way the car will die off just becoz of battery over charged...eh still need to check and see....he then plug some device to check the ECU for error code....unfortunately the thing shows "NO ERROR CODE"'....and all the sensor seems functioning...

I realise my car now fuel consumption very high....RM50 only can do 400KM max...last time RM50 can do 480km~450km...

all sifus, is there any other possibilities that the above scenario will happen??
PLS HELP

another thing is i didnt do any engine modification recently....still driving mivec 1.6 stock

 

[speedking]

anyone? pls help :(

 

[trex92]

Okie, the charging of ur battery at 13.9V is normal and won't cause any problems. The prob ur are having seems to point to a sensor problem. Try checking the connection for the Air Flow Sensor (AFS). It is connected just after the air filter and it takes the form of a black square plastic box with a wire harness connected to it. Unplug it, check the connector to see if its wet or dirty, then plug it back in again. Twitch it a little when u plug it back in...

 

[speedking]

Originally posted by trex92@Apr 11 2005, 17:17
Okie, the charging of ur battery at 13.9V is normal and won't cause any problems. The prob ur are having seems to point to a sensor problem. Try checking the connection for the Air Flow Sensor (AFS). It is connected just after the air filter and it takes the form of a black square plastic box with a wire harness connected to it. Unplug it, check the connector to see if its wet or dirty, then plug it back in again. Twitch it a little when u plug it back in...

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no la bro...my car dun have af sensor...only map sensor...i have check it....still the same

anyone help!!!

 

[jaywat]

Last time i got almost the same problem as u...rev meter can suddenly drop during car travel and die off one...start the car then die off, no jerk...i was on the middle of road...so how?? high rev all the way back home...keep maintaining 3k rpm like that....finally got home <_<

Second day still the same...so play with the timing...tune high a bit...engine maintain a while more but still die off... :huh:

No choice..so go the mech...revved all the way to mechanic also :D ...then guess what....the engine didn;t die off already....the mech checked and said no problem also.. <_< WTF until now also no problem liao hmmmm :ph34r:

 

[trex92]

Originally posted by speedking@Apr 12 2005, 13:11

no la bro...my car dun have af sensor...only map sensor...i have check it....still the same

anyone help!!!

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okie, try this then, unplug the battery for ur car and leave it for 1 min so to that the ECU can reset.