asianmusketeer

iTrader: (1)

I changed my plugs to bosch P4+ and when i hit WOT on the highway it jerks. That's not the only problem. While at idle, my RMP is at 500, but it would jerk a little to 700 and goes back to 500. So i changed back to my old plugs and the problem still exists. I didn't not have this problem b4 i changed my plugs. help!!!!!!!

EZ

Sounds like a fuel problem to me. Maybe fuel pump is bad or just needs a fuel injector cleaning.

spiff56747

iTrader: (-1)

get some new NGK platinum plugs and see if the problem goes away. Bosch plugs don't work that well with our cars, maybe your ECU adjusted to them and needs time to adjust back.

asianmusketeer

iTrader: (1)

i changed my fuel pump about 10k ago, so ya think i should change it? what brand do ya recommand?ya think i need to reset my ECU?

njmaxseltd

iTrader: (19)

When was your fuel & air filter changed last? Check your MAF sensor, make sure it's plugged in securely, also check the entire intake for leaks. Everything should be nice and tight. You may have some air bypassing the MAF.

Clean your throttle body and IACV valve if necessary. You can search this board for instructions.