So I bought a 2002 zx3 that needed a fuel pump and an alternator. I changed those things and finally got it started and running but it will not idle. With the intake tube on it will idle around 3500-4000 rpm. And if you take the tube off it will try to idle around 500-1000 rpm but not enough to keep it running. It also threw a mass airflow sensor code, I changed it and still no change. Thanks for any info.