my 2004 Hyundai Sonata will start and idle perfectly for about 60 to 90 seconds and then slowly will start to get choked up and bog out.when I accelerate feels like motor has no power and just dies

Asked by Michael Aug 16, 2015 at 02:39 AM about the 2004 Hyundai Sonata FWD

Question type: Maintenance & Repair

I've changed out my fuel pump fuel strainer
spark plugs spark plug wires and my
throttle position sensor everything is
working fine just when I accelerate fuel
pedal it will go for a second then start to
bog out

4 Answers

325

crankcase sensor? huh? if its the crankSHAFT position sensor you get a no spark condition. it wouldnt start at all. have it hooked up to a diagnostic computer.

30

Unplug your mass airflow sensor it will give it more power it's all got something to do with the black box underneath the rear of the car

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