Long story short bought a car we should not have & now dealing with it...knowing it was going to come to this. It is sitting around 103k miles & once it warms up it fails to restart after short trips; it will do the bog and low idle hitting the gas makes it basically shut off. I have read up on my problems where to start; whats causing most of everything. I am just in need of that 10% of extra info, user experience & some tips so I can do majority of things myself and do stuff right. Part1 Question My last oil change just before 102k or so I switched it to Full Synthetic high mileage; I read to usually do another oil change after 2-3k miles again because it will break down a lot of crud in the engine....should I use a injector fuel additive to help here or just do another oil change in a thousand miles or so like I read? I live in a apartment complex so that kinda limits some of the things I can....only some... Main problem I am having just to give a little explanation: Just the past couple weeks I drive 5 minutes to the bank. Come back to the car & that is when it barely starts and sputters, give it gas I have to turn the car off. If I put it in gear it jerks doesnt drive rpms bounce; I have to turn it off and let it sit for like 5-10 minutes than it will start and seem fine but the last time I drove it home and just don't risk getting stranded (fortunate enough to not have a daily routine but I need to get this fixed ASAP) I have some mechanic experience but not a guru. I can read, listen and handle dirty hands on so with all this being said lets test this community out..... I have always been into cars; growing up its all my dad did complete restores, body paint you name it. Just growing up no matter how much love you have for things working with your dad for me at least never clicked. I enjoy fixing stuff and appreciate the feedback and more importantly I do not want to mess something up to where I need to take it to a shop; except for the heavy stuff. First MAJOR problem my battery connector. I need to replace one if not both just for quality; I have watched a video where a mechanic soldered the cable to a new clamp after pulling it out of the car and making sure the cable was clean. Need some input here what is the best permanent fix for battery cables. I have not traced it yet to figure out where its placed to pull out for repair or to replace the whole cable to the battery. My engine bay is a little dirty but I been putting off letting the dealer clean it so again I don't risk messing something up myself..... Part2 Question Parts & Troubleshoot Currently looking into the following parts for sure that need replacing: Test battery/New Battery, replace cables Sparkplugs with new Coils Cleaning MAF Replace Air Filter/Cabin Filter Serpentine Belt Check hoses etc... More optional replacements in mind: Throttle Position Sensor (Possibly) Idle Air Control Valve (Possibly) Fuel Filter ERG Valve? O2 Sensors? PCV Valve Other Heavy Maintenance: Auto Tranny Service Fuel Injector cleaning? Thanks in advance, I live in so cal if anyone knows reliable stang shops I have not started looking yet, but I need other major maintenance too that I probably won't take to a dealer or regular shop.