Quick back story, I originally had these codes to show up after I tried seafoaming the car through the PCV vac line, but I didn't get any smoke. Due to this I tried it again hoping to have similar results I had with a Na car but still no smoke and then these codes show up. Car still pulls hard and have never gotten limp mode. Mods are 15% pulley, new belt, colder plugs and replaced valve cover/spark plug gaskets.

Things I've tried and found:
-Checked Bpv and adjusted the set screw for full closure (no change)
-Checked for vac leaks using propane and rpm change(only found massive tear in intake boot, fixed and rechecked. No leaks found and no change)
-Cleaned both map sensors (no change, should I try swapping them? )
-Checked spark plugs to see if they were white from lean condition (they appeared normal/not white)
-cleaned PCV valve and blew threw it to function check (held pressure but has something rattling in it and no change)
-Replaced green supercharger inlet gasket (no change)
-replaced upstream O2 sensor with stock NTK sensor (no change)

Notes: checked the fuel trim levels with torque app and found that fuel trim bank 1 sensor 1 reads values ranging from approximately - 15 to 10 (just a quick cursory check) and fuel trim bank 1 sensor 2 reads 0 at idle and - 0.8 to positive 0.8. I don't know exactly what this means, is one of my map sensors shot? I was thinking about replacing the map or tmap sensor, pcv valve, and fuel filter.

Sorry this is so long but I have exhausted the search and am stumped. What do you all think? Thanks for the help.

 

Do you have an oil catch can on the car? If so,try and seal up the clear plastic tubing at the fittings on bottom and top with silicone. Had similar codes and did this with Alta catch can and the codes have not returned. If all other leaks are accounted for this might solve your problem.

 

No I don't have a OCC, thought about it though when I oiled my SC and saw the varnish inside the intercooler. I will probably put one on at some point.

That reminds me, I did check the vac lines under the intercooler for leaks/tears and found nothing. I have also done the VGS mod and thought about going back to stock to see if that is the issue. I also had the pesky 2096 code that I eliminated with a new exhaust manifold gasket.

 

Have you tried clearing the codes with an OBD 2 reader and see if they come back? I sometimes get various codes, when messing with my MINI's engine. I just erase them with my code reader. I haven't had one come back yet.

Dave

 

Dave you were the lucky charm. I had checked and cleared the codes and even cleared them yesterday. They always came back on but right after your post it went away. It does idle rough every once in a while and goes away with a blip of the throttle. Do you know why it's doing this, your sage advice would great.