99 boxster Need help ASAP!

[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!

[mikefocke]

These 2 are misfires

P0300, P0302,

Another O2 sensor related code but an interesting comment beyond the suggested causes is contaminated air flow. What is the condition of the AUS? Have you looked at the throttle body for evidence that it is highly oil contaminated? Also could be:
– Oxygen sensor
– Wiring harness
– ECM

P0130

The following codes are the 2 O2 sensors nearest the engine reporting below the expected threshold

P1115,

P1119,

The following codes are misfires

P1319, P1313, P1314, and P1315.

So lets pull the plugs and see if they are contaminated. Don't just change them as we have to get to the source. Look at the condition of the air intake. A DIY guide to cleaning the throttle body is at pedrosgarage.com

And buy yourself a code reader. Actron or Durametric depending on your aptitude and budget.

[RandallNeighbour]

Originally Posted by mikefocke

What is the condition of the AUS?

I think Mike meant AOS or Air-Oil Separator. Just wanted to make sure you're not confused, Porsche_Baller.

One more thought—you know, at this rate a trip to the dealer or a well-respected indy Pcar mechanic's shop might be a cheaper solution than trying to troubleshoot and fix this problem yourself.

[Topless]

P1115 ,p1119- O2 sensor heating below threshold.
Bad O2 sensors, wrong sensors for your car model, mis-wired sensors, damaged wire harness. You currently have no working O2 sensors so no monitoring of your mixture. This can damage your cats and potentially your engine over time. Probably the cause for misfire also as the DME is blindly attempting to control mixture.

Also there are several different MAF sensors so you would be wise to confirm the part # for the one you installed and make sure it is the right one for your car year/model.

Time to knuckle down and retrace all recent repairs to see where things went sideways. Good luck!

[Porsche_Baller]

I had recently cleaned the throttle body when i replaced the MAF i also did that one mod a pedrosgrage.com with the air intake. I figured, wile its off there might as well change it. There was no sign of oil in the intake/ throttle body and the old MAF didn't look bad at all... The new MAF looked exactly like the one i pulled off the car same bolt pattern, and plug spot. It was also a Bosch as was the one that came off of it. As far as Miswired sensors they were straight plug and play they were slotted so they could only go on one way so highly doubt that is the case.
I have to say I'm starting to suspect the ECM or computer myself..
If y'all have some pics or description of where i can find the AOS ill definitely take a look at it.
On a side note do you think the car could have jumped time??
I have to work a 24 tmr but after that ill have a 48 off so ill take a look at the plugs then.
ill get myself a code reader as soon as funding permits... I still have to replace a rear tire. (had a blowout the other day so now I'm riding on one new and one old one)
Thanks for all the help guys i really like brainstorming with y'all

[Porsche_Baller]

So I went to take the car to momentum motorworks in Birmingham they specialize in Porsche and BMW. I made it about halfway there and the car quit on the interstate. It had a serious decrease in power and the check ingine light started flashing. When it started flashing the car would run ok then as soon as it turned solid it would loose power and barely move! So I pulled off the road and called a rollback and got them to take it on up there. So the guy calls me a couple of hours later and tells me my oil seprator is bad and it was going to be $405 parts and labor to replace it and that it wasn't a 100% guarantee fix. I was very currious. Am I getting ripped? I've never herd of an "oil seperator" does Antony know anything about this thing??? Is it the same thing as the AOS?

[insite]

AOS = air oil separator.

btw, when your car starts acting up like that, don't drive it. you can do a lot more damage ($$$$$$$$$$$$$$).

if you wind up needing the coil packs, PM me. i have a full working set you can have nice & cheap.


EDIT: one more thing. $400 parts and labor to replace the AOS is fair.