Aeka GSR

iTrader: (4)

Having some partial throttle missfires and my autometer gauge needles fluctuate (electrical water and oil) durring the missfire. Sound like a ground problem?

DaveW

A couple of guesses:

1. May be old (fouled?) plugs or other ign problems such as bad coils or wires - do you have any high-rpm missing? Any power loss at high rpms and loads? These are other indicators of the same things.
2. Possibly bad ground and/or electrical noise from sparks jumping where they shouldn't from bad HT wires.
3. Maybe, but see 1 & 2.

Aeka GSR

iTrader: (4)

well i am missing a bit a high rpm, but I chaulked that one up to the fact that im still tuning her, but I suppose I should try swappin out the plugs and wires. The plugs are fairly new, but they have been flooded once or twice, I have no clue how old the wires are since I'm the 4th owner. Would a 10:1 AFR at 8psi 6k+ rpms cause a miss? Either way, i think I answered my own question with these plugs.

1QWIK7

iTrader: (33)

You'd be surprised the many problems that occur because of bad plugs. Most people neglect that as it being the problem and jump to conclusions about other major things.

I had about the same problem with you about missing and poor idle at times. I found out the trailing wire from the rear rotor was barely on the plug and the plugs themselves were old and beat. So i changed them out and put the wires on tight and car ran like new again.

GUITARJUNKIE28

sounds more like a short-to-ground than anything else.

most common thing i've seen that does that is an arching spark plug wire.
run the car at night and strap a wire onto a screwdriver (a well insulated screwdriver). run that up and down your plug wires, and over the coils and look for a light show.

if that's not it, a lengthy way to check that out is remove fuses one at a time and try to duplicate the conditions in which the problem occurs.

Aeka GSR

iTrader: (4)

well id have to say it is the plug wires since everything stopped having problems when things dried up. The roads were a bit wet last time i was out. It didnt really come to mind when i originally posted. I'm aware of the screwdriver trick, i never really felt comfortable doing it, lol. Who carries a decent set without breaking the bank. I'm running stock turbos, stock ign. Money has been tight since christmas.