power problem

[nissandrift]

I was just driving home and all of a sudden when i put it into second at about 3500 my car started shuddering. It kept doing it everytime I got into the gas, felt like I lost 25 horsepower. Yesterday I put in a 300zx fuel filter, new oxygen sensor, and air filter. I'm lost as to what it could be, but if I had to guess....I'd guess fuel line partially clogged, fouled plug. Tommorrow I'm going to check the plugs, and fuel filter. If anyone has any other ideas of what to check...please help

[[s3]]

Check for codes

[hazardous240]

i got or had the same exact problem on both of my 240's. I just changed the fuel filter, spark plug wires, spark plugs, cap, rotor, oil, oil filter, air filter, pcv value yesterday on my 93sx and the problem seems to have gone away. Im going to try to change all that on my 95sx later in the week. try changing those and maybe adding a fuel additive of cleaner of some kind. that might also help.