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Great post Russ! This is next to do on my list.
I installed a new gas cap, so far no more P0455 code.
I installed a new map sensor and the car is now code free with the exception of the evap large leak code. I put some gummi fledge on the rubber seal of the gas cap. Going to order a new cap tomorrow. As for the subtle vibration at 1800 RPM I have been driving the car occasionally relatively hard and that seams to be smoothing out the vibration. Maybe some of the residual carbon was stuck and now freeing up.... only a guess because I have no codes and it is getting better.
I have been researching these codes a bit. The evap leak might be a bad gas cap seal. The map error might be a bad map sensor. The V8s do not have MAFs. MAP sensors are relatively cheap for the Bosch OEM part. The cam error I am not sure of yet. Maybe sensor or solenoid. I am going to measure the map sensor and since it is cheap enough I ordered a Bosch map sensor. I will get a new gas cap seal or gas cap. I cleared the codes and will see if they come back after the parts replacement are installed.
Does anyone have any thoughts on why after removing and reinstalling the intake manifold I am getting a check engine light and codes P0107 and P2100? I believe the CEL is due to the 3rd code in the attached picture for large leak detected. Maybe my gas cap is in need of replacement. I also cleaned carbon off of the valves and replaced the coolant vent line under the intake manifold. After performing this work I noticed these codes and at 1800 rpm the engine has a new vibration when the car is in park. It’s almost like a semi fowled plug however I never went near the plugs.
Based on your original post I would have said order an oil pressure sensor and check your coils.
^ 100% agree. Why throw parts at the car without first checking the codes? Sent from my iPhone using Tapatalk
Well don’t take my non-explicit response wrong but since their service is subscription based and copyright I wont repeat their process however it clearly tells you how to do this job. Their pricing is also very reasonable if you buy the alldata diy version specifically for your year make and model. I think I paid approximately $40 for 5 years of access... HTH
So I looked on alldata and it does have a procedure for replacing the oil level sensor.
Sorry I have been busy. Let me check if all data has a procedure and if so then you might want to consider buying it.
Unreal! I have looked at the part and assumed it was right at the bottom of the oil pan. So I searched and read through a few forum threads and it seems to be a difficult job after reading a couple if them... Maybe read through these porsche+958+oil+level+sensor+diy+site:rennlist.com - Google Search WWW.GOOGLE.COM I will check alldata to see if they have a solution. If so the subscription is very affordable.
I have replaced these on many BMWs just not my porsche. I have looked at these sensors and they look just like hella sensors on bmws. Very easy to replace. Can you take a few photos and post it here?
Since you are working on your porsche I would recommend buying a set of triple squares.
Definitely not SAE. It is either metric or triple square.