kouki-s13

i see alot of people that have this problem on 240sxforum.com but none have been solved, i hit the gas lightly and the car drives, normally, and i mean rerally lightly touching the gas, when i hit the gas to try to drive like normal, it bucks, and bogs down like it dies. known solutions are replacing maf sensor, air temp sensor, ignition timing. i did all that and it is still not fixed. can anyone help me out?

The Guy

The tps was changed too. I noticed a few vacuum leaks under there. Its not gonna solve it all, but it might help.

Slomar

Your sure that your ignition timing is set right? Only other thing i can think of is maybe fuel pump going bad or a vacuum leak

Fabrik8

Fix all the vacuum leaks, and don't worry about trying to trouble anything else until you do. You're not going to be able to properly troubleshoot anything when there are vacuum leaks, and everything will get overly complicated.

kouki-s13

noticed a few vacuum leaks?

kouki-s13

yea, i had a timing light hooked up to it today to make sure, fuel pump was just replaced not too long ago

Fabrik8

I'm going to say this again. Fix the vacuum leaks. Don't waste any time screwing with anything else until you do.

The Guy

Oh shit. Forgot. This is the guy you traded with. Yeah I fixed the one on the intake piping. It wasn't sealed all the way so i put a clamp on it. I cant remember where i saw the other(s), just that i remember thinking about them. Now, if you never traded a guy for a black s13 and this is a case of mistaken identity, then sorry lol. Boy would I look like an idiot....

kouki-s13

no vacuum leak, it was fuel pressure regulator, car runs awesome now, but trading it tomorrow =/