Wicked94z28

when Im under a load I have a miss , its not horrible but its still killing me.... I just put a new set of ngk irridiums in it, wires have about 800miles on them and are 10.2's, still have it.... a couple days ago we but some "blueberry burnout" fuel additive in it but i ran that gas out , threw 10 in, ran that out, put 10 more in, and ran that out and just put 20 in the tank and its still going on...... opti is gm performance that I just replaced about 200miles ago... any ideas?

defaultexistence

iTrader: (11)

Plugs or their gap what is gap?

Wicked94z28

i left them alone at 50

Wicked94z28

Should I gap them different?

FormulaJoe

iTrader: (5)

I'm dealing with a similar problem. The book says 45, right? I'm thinking I just need a tune..

96LT1355Z28

iTrader: (2)

Wicked, if you sig is accurate you might try gapping them a little tighter, when my gap was to big it would idle and drive in town fine but under WOT it would cut out and miss above 3000 rpm. I'm using Autolite 104's @ .030 now.

Wicked94z28

96 that's about exactly what mines doing.... gonna go pull them and knock em down to 30 and ill.let ya know how it goes!

jaycenk

iTrader: (1)

What do the old plugs look like?

RamAir95TA

iTrader: (2)

Likely an ignition issue. Cylinder pressures are higher under load which can blow out spark if the gap is too large or too weak.

Wicked94z28

That was the problem, gapped em at 30 and.now.she's running like she should....now time to break this Detroit locker launching tomarow night lol

defaultexistence

iTrader: (11)

ehhhhpp!

nascarnate326

iTrader: (1)

I would guess ignition as well.

MAF, o2 sensor, plugs, wires, opti, idk what else it could be.


I did plugs, wires, opti, and MAF all at once.

wrd1972

iTrader: (12)

Check for above normal resistance on the plug wires. I had small misfires due to the helical conductor being broken at the terminal on my MSD wires. Repaired the wires and all had acceptable resistance.

defaultexistence

iTrader: (11)

Lol !

RamAir95TA

iTrader: (2)

Apparently everyone missed the point where he mentioned he fixed his problem...

ls2pontiac

iTrader: (1)

You need to convert to the EFI 24x system, screw the damn opti

Wicked94z28

Love the opti.....I'm.at the.point.with the opti where.I have a.lifetime.warranty and.got.so.good.at.swapping.them it.takes.less.then a hour for a.swap.and back on.the road!

jaycenk

iTrader: (1)

It's your blinker fluid level...you over filled it.
Good to know about the plug gap. I had no idea it would blow it out. lert me sumtin new today boss.

Wicked94z28

Same here.... I could have almost garaunteed it.woulda been the refoobulator switch on my dome light but I was.wrong.....

defaultexistence

iTrader: (11)

All you's guy's had ta do was axe!