Hyundai Elantra 1.8 problem

[arilrobben]

gud day to zth members..

i have hyundai elantra 1.8 2001...
the problem is this car always jerk like running just in 3 cylindr when aircond on both idle or `jalan jalan`....i already replace 02 Sensor, plug coil, spark plug, cable plug, alternator and a/c idle valve..i already pening2 with that problem..perhap any otai2 can solve my problem..t.q...

 

[vicng]

Did u change ur fuel filter?

 

[arilrobben]

already solve this prob..coil plug fault again..thnk you..

 

[dev68yoga]

Try replacing the spark plug cable