My car starts great when cold in the morning.
After driven for 5 mins i turn off and try to restart.
The engine turns over but doesnt come on.

If i have the gas pedal pressed it it does start after like 10 seconds(pumping the pedal seems to work too).
But i feel that when it does start i have to keep the gas pedal pressed in 2 seconds to bring it back alive with black smoke smellin of fuel coming out exhaust.
If i just wait for it to start and let go off the pedal it idles funny and dies(Maybe drowning in fuel).
So im guessing its due to unburnt fuel while cranking.

My car drives great otherwise...

I searched and this is what come up:

1. Crank position sensor loose - Negetive
2. Bad Crank Sensor? Any measurement i can do?
3. Bad Plugs or wires
4. Bad battery or alternator

I just had the alternator replace and i had the battery checked.
I will replace the plugs and wires tonight and tomorrow its booked into hyundai for A/F Ratio adjustments.
I got a few mods on the car so maybe it does need a tune.
Its got 210 000 KM's.

Its winter in S.A nowdays.
Probably 10 degrees celcius which is cold for South Africa.

 

Bad coil pack?

Pull one plug and check for spark while cranking, when it is "too hot to start"

 

The CKP could also be bad, not just loose.

 

Yo guys,
Thanks for the replies.
Just got my car back from HYUNDAI.

It was the sensor that is on the thermostat housing with 2 pin connector(Next to the temperature guage sensor).
Its controlling the Air fuel ratio depending on how hot/cold the car is.
The car probably was told to run rich by the ECU when the sensor sent the signal it was running 40 degrees celcius.
Funny thing is i just recently replaced this sensor...

So they plugged it on the computer and they said when the engine was 80 degrees celsius that sensor was reading only 40...
So it was adding more fuel then normal..

The CO they could not set as the scan tools are outdated...
WELCOME TO THE THIRD WORLD...