erratic power when cruising

[LHV]

Good morning,

Ano kaya problema ng kotse ng utol ko, during highway speeds going to lipa bigla na lang parang pumapalo siya o nagincrease ng speed (jog lang)samantalang same naman yung apak sa gas, pumapalya ba spark plugs, carburator o cables, tsaka baka may nakakaalam po kung ano ideal resistance ng ignition cables ( stock ),

thanks in advance

[afrasay]

could be because of the following:
1. clogged fuel filter
2. defective fuel pump
3. dirty carb / ari cleaner
4. faulty ignition system (plugs, ignition cable, coils, contact points, condenser)

Ideal resistance? Kung pede 0 ohms pero may resistance din talaga yan.

[EssB]

check the timing na rin po... baka tope lang yun....

Spark plug cable resistance can't be too close to 0 because it will cause interference to your in car electronics. The spark plug cables are designed to have some resistance/inductance to prevent electromagnetic interference and skin effect. That's the reason why if you'll examine the cable inside, you'd see it on a spiral pattern, and not straight/stranded pattern.

Ideal resistance per cable (terminal to terminal) should be less than 25K Ohms...

[afrasay]

EssB,
Thanks for the info.