Hi, i been posting a lot here and I've been getting a lot of information and thank you for all your guys help.

Today, I replaced my Ignition coils, spark plugs and wires, and the MAF. My car stopped misfiring while idling and some other stuff stopped too.

But here are the things that are wrong
1. When i rev around 3500ish and hold it, theres a popping noise(probably a misfire) every 2 secons or so, basically like pop...2seconds... pop. I was wondering what else might cause it, bad fuel injecters? I dunno.

2. When my car is warmed up, while idling, its someone static around 400-500, but when I put it into gear , it stays at 800. And someones it does vice versa, it stays at 800 during idle and goes low during in gear. Could it be the idle positioning? Or a bad TPS/Throttle body.

Thank you, Im so close to fixing to all the issues
-Johnny.

 

The BAC should prevent the idle from dropping below 750 rpm so look into that.

 

Thank you, I thought so too from previous post, but i changed teh maf first, so now i will be getting a BAC. But do you know or any body know the first part?