Just got car, oil near injectors

[mattdesmond]

Hi,

I just bought a 1990 240sx.It runs fine but didn't pass emissions.

It is throwing a code, but I haven't had it checked.

There is some oil on the top of the intake manifold near the injectors and one injector looks like it's covered in oil.Could this be the injector seal? Could that cause my car to not pass emissions?

Thanks in advance for any help.

[navysnail]

if the injector is leaking, it would be fuel, not oil. if there is oil indeed and not fuel, then its probobly your valve cover gasket

[ziggy682]

Yeah, oil on the injectors wouldn't be caused by a leaky injector seal. It's either a valve cover gasket, or somebody spilled it when they were adding oil. No, it wouldn't cause you to fail emissions. You need to look at your emissions readings and find out what you failed(HC, CO2, NOX, etc.) and go from there.

[mattdesmond]

Cool, thanks.

My car passed NOx (had 546, with 1258 allowed)It failed HC (183 with 174 allowed) and CO (4.47 with 1.12 allowed)

Can anyone tell me what this means?

Thanks again,Matt

[navysnail]

have you done a tune up and was the car warmed up completely when tested

were in ga are you

[mattdesmond]

I haven't done a tune up, this was right after I bought the car, it had been sitting for a few months. They warmed the car up completely before testing it.

I'm in Jonesboro, anyone around here have a engine code checker? (what is it called for nissan? I know VW is the vag com)

[PapaSmurf2k3]

give the car a tune-up, plugs and wires, the whole deal, that will help you burn more of the fuel, lowering your HC (Hydro-carbons), as for CO, i dunno maybe the tuneup will take care of that too, but you might have to adjust your timing or something. if it got tested after its been sitting, run it for a couple of weeks too, and before you take it to the test try and really beat the crap out of it, that should clean everything out a little bit.

[ziggy682]

Yeah, I second the notion. Get a tuneup, and you will probably pass. HC is just unburnt fuel, once you get a tuneup(plugs, wires, timing, etc.) it should pass. If it doesn't, you might need a new catalytic converter. Good luck.

[mattdesmond]

Thanks for the advice, I'll check all that stuff. :ylsuper

[navysnail]

the 1990 240sx is not obdII so you dont tell the codes with a scaner. you check them on the side of the ecu, there is a how to on 240sx.org or if your ever near ptc, come on by and ill show you how