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View Full Version : When i get to 5000rpm's my engine wont go anymore?

MarketPlayer
05-22-2002, 05:21 PM
It was all good two days ago, but then I changed my oil yesterday,tightened my battery terminals and added fuel injector cleaner, but that was it!  Now when I step on it and try to go past 5000 it just jerks like mad, and wont accelerate?

I also have a black smoke comming from my exhaust and people tell me it is too much fuel.  I am thinking about buying a new O2 sensor.  Do you think this will work? My engine has 140K miles!
sykikchimp
05-22-2002, 05:45 PM
check your spark plugs, and wires and make sure they all look good.

btw - fuel injector cleaner is pointless.  Premium gas has all the same stuff in it that additives do.
tnord
05-22-2002, 11:37 PM
when you say black smoke i'm gonna assume you mean blue. and blue smoke means your burning oil. i doubt oil combusts as well as fuel does, so that'd be the first place to start, is figure out why you're burning oil.
MarketPlayer
05-24-2002, 12:00 AM
No when i say black smoke i mean black smoke!  It has been another day, and it still won't let me go above 5000rpm's.  I have looked at the resetting the ecu poste in the archive and faq section, but it doesn't tell me if the ecu is in the door or in the front fender?  I will be checking the spark plugs tommorrow b/c that is when i get paid.  Does anyone think that resetting my ecu woul e a good idea?  Please tell me your opinions.
Datsun_Man
05-24-2002, 01:54 AM
sounds to me like your not burning the fuel at 5k+ which would obviously give crappy performance and would create alot of black soot like emissions because the gas is converted to carbons when it is in the converter. This sounds like an ignition problem. Your plugs may be at fault but a faulty 02 sensor would make your "check engine" light turn on and you would have an overly rich mixture all the time because the ECU wouldn't know what to push fuel wise so it would, by default, run rich which hurts performance. (Although running a little rich provides ample burn and more power, running too rich is no good!<img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/wink.gif" border="0" valign="absmiddle" alt=';)'>