djkyle25

ok im stuck, ive just done the opti, wire, plugs, and motor mounts, my car just dont quite run right, at idle it kinda surges every 2 seconds or so, and when it does this i can see the engine vibrate back in forth more than ususal??? wut could be my problem???

93BlackZ

you might think about the IAC, coil, ICM, fuel pump, filter, or FPR w/o any real specifics or a vid or some sounds or something its hard to truly diagnose it.

djkyle25

yea i know, well it shakes some upon acceleration so its not just an idle problem, its kind of a delay or shutter kinda, just robbin me of some power

djkyle25

anyone had this problem and actually found a fix??

MrBill97396

iTrader: (10)

Why not run it to the shop ? or a shop.

djkyle25

yea i may soon, neone else have ne suggestions on wut it could be it seems too kinda flutter when im accelerating, liek too much/little air or fuel maybe, it gets alittle better when i take off the hypertech programming

Captainofiron

iTrader: (1)

What plugs and wires did you buy? The only thing I can think of is either the wires are defective (which happens) and one or more is arcing, that would explain the hesitation, or the new plugs are getting fouled to easily, I have seen that happen alot with the Bosch plugs in the LT1s. The firing tip is so small and the combustion chamber pressure is so high those little german guys cant take it.

My1st Truck

iTrader: (8)

Could be a bad spark plug gap too? How much anti seeze did you put on them. I ask because I put too much on a couple of plugs once and it ran like crap until I cleaned them off.

MrBill97396

iTrader: (10)

Take it somewhere and have them evaluate the issue. There are good shops in Houston that still mess with LT1's

djkyle25

seeze? wut do u mean, and i have acdelco and i was told not to gap them because of the 2 tips on platinum plugs it would crush one if u tried to gap it???

MrBill97396

iTrader: (10)

Anti Seeze, you know it is grey lubricant to keep the plugs from seezing up so you can wrench them out with ease the next time you replace them. Did some parts store guy tell you that the plugs where pre-gapped too

djkyle25

yea he told me they were pre gapped becuase there platinum and they have those 2 little tips

MrBill97396

iTrader: (10)

Did you check the gap ? you should have just bought NGK's and gapped them yourself.

DeltaT

iTrader: (5)

It sounds like you have 2 plug wires on the wrong positions. Did you follow the old trick - "Replace 1 wire at a time from end to end"? It's easy to get 2 mixed up and the car will run but crappy. I've done it twice, and seen it a hundred times.

Jim

My1st Truck

iTrader: (8)

Man I learned to gap, check, gap, check, tiny bit of anti sieze then install...I don't want to talk about doing the plugs in wires in the 96 I had...must not sleep must not sleep, the plugs will get me...

djkyle25

but after i changed opti and it hadnt run for a week it did alright for a couple days????

My1st Truck

iTrader: (8)

May have burnt up a wire, I have done that, I routed it wrong. So you say it ran fine right after the opti change?