2002 Hyundai Accent jerks at 20 and from 40-50 mph range...stalls at lites after sitting 10-50 seconds...runs very rough...all problems intermittent but more consistent after car warms up...no codes except O2 sensor after replacing coil pack/wires/plugs/map sensor and TPS sensor...What gives here???
SOURCE: 1998 hyundai accent
make sure crank sensor is all the way seated care taken 10mmnut dont over tighten or you will break sensor
SOURCE: 2002 Hyundai Accent Problem
first thing i need to know is did the timing belt break?
second is are you sure you aligned the timing marks and after the belt tensioner was tight you rechecked to make sure the timing stayed where you had it.
next step would be a compression check to if a valve was bent whenchanging the belt
i have seen this happen and this engine is an interferance engine.
later paul
SOURCE: 2000 Hyundai Accent will suddenly stall and wont restart
Have someone check the idle sensor. I had to have mine replaced along with another that I don't remember which one is was.
SOURCE: I have a 98 Hyundai accent. Won't accelerate over 50mph
the o2 sensor will cause overfuelling and an improper throttle position.
the heater circuit has 12v,and the other 2 wires are a reference voltage.
you need to use a scanner and look at the live data to see what the 02 sensor is doing.
after battery disconnect,the monitors have to set using a drive cycle of which you can get from hyundai.Typically to set the 02 heater circuit,the car has to idle for 2 minutes when cold,and then drive at 55mph for 3 minutes with the a/c on.
SOURCE: 2002 hyundai accent running rough i've changed
Clean the IAC and check for vacuum leaks on all the vacuum hoses. Please rate me on this answer.
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