jjolin94

Hello I have a 96 firebird formula and it's running alittle rough.. I just replaced the opti spark , plugs , wires,and coil. when I'm coming out of first and second gear it seems like it is running Ok but when iget up to 4th 5th and 6th it starts to shake and in sixth the shifter shakes if igive it more gas it's missing somewhere I can't figure it out been messing with it for ayear and I am stuck. Maybe icm ihaven't tried that or maf sensor maybe any help would be awesome thanks

bufmatmuslepants

iTrader: (3)

Have you checked your fuel pressure? Could be a tired fuel pump.

LT1

iTrader: (1)

Are you getting a check engine light?

How does your trans mount look?

Do you think its misfire or drive line vibration?

MedicinalCreamDogs

iTrader: (4)

i second the fuel pump.. also check the rest of your ignition system; ICM, coil, etc..

LT1

iTrader: (1)

^ i think he said he replaced the coil.

MedicinalCreamDogs

iTrader: (4)

holy potato chips! your right!