injector or fuel pump?

[cleopp3]

Got a 93 5spd ka24de when I intitially press the gas in first gear i get a sputter and a lag but when it gets to over 1k seems to act fine happens in all gears under 1k to 2k sometimes, usually when its cold. any suggestions?

[ZOMG.SR20]

MAF sensor.

[modulation]

Ya unplug your MAF and see if it runs any better..

[cleopp3]

ya it doesnt run better at all the sputter is still there Im assuming now that its a fuel prblem.. any one know the best way to track down an injector or faulty pump?

[modulation]

I'm serious about this..

Unplug the spark plug wire from your spark plug with the engine running on each cylinder (1 cylinder at a time.)

If the problem is on a single cylinder, when you pull the spark plug wire for that cylinder the engine won't run as different (or different at all) as when you pull the spark plug wire on the other 3 cylinders.

The car will sound bad/almost die with the other 3 cylinders unplugged, but if it doesn't run much different with the spark plug wire unplugged then the problem is probably located in that cylinder. Then check the spark plug and injector on that cylinder.

If the problem is a bad fuel pump or clogged fuel filter then doing this won't make a difference so at least then you'll know it's not a indvidual cylinder that has a problem.

[ZOMG.SR20]

fuel injector cleaner goes along way i use it religously Lucas Injector cleaner great dtuff

[Drifter Z]

yeah check MAF and spark plug then injector.