s14sr breaking up when NOT under load

[dougal]

i have a zenki s14 sr20det in an s13 chassis with z32 maf stock injectors and an safcII.

when i drive the car normally it breaks up real bad between 2500 and 3000rpms. but when i get on it its fine. anyone have a clue?

[modulation]

i have a zenki s14 sr20det in an s13 chassis with z32 maf stock injectors and an safcII.

when i drive the car normally it breaks up real bad between 2500 and 3000rpms. but when i get on it its fine. anyone have a clue?

Maybe you're running too rich in that range, or your spark is too retarded.
Do you have a WBo2? What does it show during the spark-break up?
Have you tried to tighten the gaps of the plugs or anything like that?

[dougal]

im actually not sure what a WBo2 is lol. im new to the SR world. ive got my plugs gapped at 22.

[Gription]

WB= wideband. 22 seems good for your gapping. Have you checked your coil packs for cracks? Ignitor chip good? Is your timing set right?

[dougal]

ahhhh... these is good info! thanx dude. ill be start checking. how can i adjust my timing?