99 boxster Need help ASAP!

[Porsche_Baller]

Do you need to change the coil packs everytime you do a tuneup? Because I replaced mine prolly a year ago. Now for the park plugs yeah those prolly do need to be changed because last time I changed those I was changing the coil packs. Lol
Not 2 mention the O2 code is still on...

[john330]

No you don't have to change the coil packs everytime you do a tuneup.
I only replace them when they go bad. I am not sure what their normal resistance is, but you can check them with a regular multimeter.

Did you clear the O2 code with a obd reader?

[Topless]

Error codes first, clear diagnostic discussion second, change parts last. This is by far the quickest and least expensive way to keep your car in good running condition.

[Porsche_Baller]

No I didn't clear the codes with the tool I just disconnected the Batt for 15 or so mins.
Topless you kindof confused me on you last post. I see why the codes would come first. But why replace the parts last and clear the codes 2nd? Wouldn't you get the codes, replace the parts, then clear the codes???

[JAAY]

skip it all and yank the motor! 3.4 time Just kidding. i'm sure you will figure it all out soon. It seems that you are narrowing it down. If you changed all that already I am not really sure what to check next. Good luck.

[dirkdiggler]

I had Miss-fire codes and just replacing my spark plugs solved that issue.....cheap and worth a try.

[Topless]

You still have not diagnosed your car. You could easily spend another $3k-$4K on parts and not fix the problem. Get all the error codes, year-mileage-model, part #s for all recent repairs and list any other recent mods/repairs. K&N oiled air filter? With this info we can help you.

[Porsche_Baller]

So, I stopped by advanced auto and got the car on the code reader here's what i got... P0300, P0302, P0130, P1115, P1119, P1319, P1313, P1314, and P1315.
I know alot right? I got him to clear the codes for me. Yet to say as soon as I left target it started to throw codes again.
As far as replacement parts. I replaced them all myself so don't actually have receipts but i can give you a general timeline.
May 2010- MAF sensor, 6 coil packs, 2 O2 sensors, oil change, and 6 spark plugs.
September 2010- Air filter (OEM non-oil), and fuel filter.
Ive been experiencing this problem for a wile. These are the things Ive tried to fix it but nothing has worked.
March 2011- 2 O2 sensors (after cats) and another oil change.
All the other modifications have been cosmetic. LED tail lights, HID headlight kit (non-litronic), LED undercover dash lights (for running 911 calls).
Its a 1999 986 boxster, 130,145 miles.
Pretty much everything I have replaced on the car has been BOSCH (MAF, O2 sensors, coil packs, fuel filter, and air filter.
As far as oil I use Mobil1 high mileage 10w-40.

HOPE THIS INFO HELPS!