My 2000 SE was doing this weird pulsing thing at idle but the tach never jumped up and down. Now it's dying when I get to stop lights. It won't start unless I give it gas and won't stay running unless I stay on the gas. When it's cold it runs fine. Your thoughts?

 

it could be a bad MAF, i had the same issue with mine and it went away after i changed my MAF.. and if you're going to be changing it, go for the OEM one and not the ebay crap.. it wouldn't hurt to check your air filter to see if it's dirty as well also when you change it, and make sure that you do an idle air relearn program by your nissan dealership or a mechanic that has the nissan consult tools.. cheers and i hope this helps

 

Thanks it's at the mechanic now I believe it maybe that or the IACV.