Possible Loosing Fire While Driving

[cr1228]

Ive got a 97 crv that starts loosing power and bucking while driving it is intermitting and does not do it while in neutral only when there is a load on it ive replaced the plugs,wires,fuel filter, cap and rotor butten ,put gas line antifreeze in it and still no fix it may not do it for 100 km but then may do it 5 times in 10 km. When its not bucking it idels and runs perfect,lots of power,any suggestions
thanks

[Gene Vondette]

Sounds like a vacuum leak to me. Check for cracked lines or loose connections in the vacuum lines.

[duodad]

When was the last valve adjustment? If it's been more than 30k then that may be your fix.