Check exhaust condition by cooling down the vehicle awhile (15
to 30 minutes) or before you start driving, first put gear to
neutral,hand brake up, tekan the accelerator, look for amount of
smoke from exhaust, if smoke alot, meaning fuel leakage into
exhaust liao.
Check temperature, see if it is higher than normal and and
also if engine having hiccup sound.
Either the timming (Cam or electronic injection) was
wrongly adjusted or out of timming, and also fuel nozzle spray may
be spoiled, choked, it must produce a mist of diesel, some fuel
nozzle nipples are spoiled and just like pipe water, pour down into
the combustion area instead of doing a mist spray, this will take
up lots of fuel and wastage
