280z emissions help

[sdobes]

hi im new to this site and i have tried looking for this in the forums but cant find it i just bought a 280z that was origanilly a cali car so it has the stupid emmisions stuff on it and i live in michigan now i have been told that the reason for my back fireing and missfireing is because of this is there anyway i can get rid of this or anything i can do to fix it i have the timing dead on new plugs,wires cap and rotor so i just cant figure this out any help is greatly appreciated.

[SteveJ]

No, it's not backfiring and misfiring because of the emissions equipment. It's backfiring and misfiring because the car has not been maintained properly. For a good head start, read the FSM. Link is below. Go through the diagnostics and fix what is wrong.

[Powderkeg]

Sean,

Carburetors misfire and backfire too.

As Steve suggested...read the factory service manual for the year of your car. Also download the Fuel Injection Bible.

Do some tests. Then if you get stuck, post back here with the specific problem. There's a lot of people here who are glad to help but you have to do make the effort too.

Good luck.

Dave Ruiz

[rcb280z]

Steve and Dave are right Sean. Too many variables to mention. Study the fuel injection system in the FSM and do the tests they lay out for you and then post your results. I just recently moved back to CA (3 yrs) and had to pretty much rebuild my fuel injection system and emissions so my Z would pass smog. With over 300,000 miles on her, she passed with better numbers than our 2005 2.5 altima! So you can fix it. It may take time though. You will need to be patient. Keep the forum posted on results. The forum will help. It helped me when I had electrical issues.

Good luck.

Bob