Strange Problem

[homedog56]

After a little spirited driving last night my car started to miss pretty bad so i pulled over put it in neutral and free revved it and it would rev up to around 3500rpm sometimes 4500rpm then drop straight back to idle while i was still at the same throttle postion and if i tried to correct it with more throttle it would just miss terribly and take a while before it would rev to limiter.

Ive heard of a safe mode could it be this because i went home disconnected the battery and it ran perfectly again

It happened again tonight but i just pulled over and it started working again perfectly without disconnecting the battery

Im guessing it could be AFM does that sound right or could it be coilpacks?

Any suggestions would be greatly appreciated

[GTS4WD]

Check the spark. Pull the plugs out with leads still attatched. And get someone to turn the key. Easy way to check sparks.

Also, if you can get your halds a hold of a multimeter to check votalge of coils

Give the AFM a clean.

Also check fuses. Sounds similar to a poblem I had. Turned out to be a blown reverse light fuse which was on the same circuit as something fuel related.

Edited November 6, 2008 by GTS4WD

[Eug]

yup start with the basics. unfortunately it's all trial and error.

afm, fuses, coil packs, sparkies, etc.

just gotta keep testing each one until you find the culprit