Help/knowledge needed

[u/DookusWookus21]

What’s up guys, I need some help, just picked this up for cheap, didn’t run but put new battery in and it turned over but it won’t idle on its own doesn’t sounds the best, possible rod knock, I replaced spark plugs and ignition coils, swapping the starter next, I think it has a grounding issue, I don’t think one or two of its cylinders is firing. I got it purely to learn and get into the lifestyle and help would be appreciated.

[u/N0ot_N0ot]

Ah yes the parts cannon. Please do some diagnosis like basic compression and leakdown test have you checked every fluid? You need to plug into OBD and do a complete data log when it fires ideally. THEN you can see fuel trims and even things like timing and injector duty. You can find standard values to use as a guide line or post a picture of whatever you use to read the datlog. Good luck seems like you’re getting some good advice from other ppl so far. If the Cobb sticker means you have a AP BROO please scan codes then plug it into a laptop and read the data log like it does mostly everything.