reese's peices

ok iam gonna write out a whole novel here so you guys can get somewhat a good understanding of whats happing...

i was driving home one day and i took a right turn and started to acclerate so i wouldnt get hit by the cars coming and than i got up to the speed limit and let off thah it felt like my engine had a misfire or something than the rpm guage was just going all over the place it would jump from 5k to 2500 rpm and just up and down than i pulled over and the car died and wouldnt turn over so i called my friend to tow me home and when he got here we tried to start it agian and it started with no problem. he suggested the fuel filter so i changed that out and yesterday it did it to me again! except i didnt pull over and i kept driving and than it the car was running perfectly again? is it my fuel pump? could it be the header i installed? (p.s. it has a brand new coil pack with plugs and wires)

dustinb

It could be your fuel pump. When mine was failing the motor would stutter under acceleration.

fooger03

iTrader: (2)

Could also be the brand new coil pack - but the miata engine will generally idle on 2 cylinders, which makes the coil seem unlikely.