Porsche 996 Ticking Noise
06-13-2018 | 02:43 PM
#16
Thread Starter
Intermediate
Joined: May 2018
Posts: 39
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Finally found some time to start fiddling with the Porsche again. I got an obd2 reader and pulled the following fault codes, p0420, p0159, p0136, and p2096. The p0420 code goes on and off, most likely because of 200 cell cats. The lean code is the one that makes me nervous.
What should my my long term and short term fuel trim levels be? What else can I look at with the obd to start pinpointing the cause?
What should my my long term and short term fuel trim levels be? What else can I look at with the obd to start pinpointing the cause?
06-13-2018 | 03:20 PM
#17
Rennlist Member
Joined: Apr 2010
Posts: 5,967
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From: Ormond Beach, FL
Wow! All of those codes are related to the O2 sensors and feedback from the O2 sensors. Google is your friend on this one. What type of 200 cell cats did you put on? Do you have O2 sensor extenders? Did you replace the O2 sensors? I would be worried about a lean running condition as well. Something is not right. Is your MAF clean? Vacuum leak somewhere? Intake leak?
06-13-2018 | 03:53 PM
#18
Thread Starter
Intermediate
Joined: May 2018
Posts: 39
Likes: 0
Wow! All of those codes are related to the O2 sensors and feedback from the O2 sensors. Google is your friend on this one. What type of 200 cell cats did you put on? Do you have O2 sensor extenders? Did you replace the O2 sensors? I would be worried about a lean running condition as well. Something is not right. Is your MAF clean? Vacuum leak somewhere? Intake leak?
02-13-2024 | 01:00 PM
#19
2nd Gear
Joined: Feb 2024
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02-13-2024 | 01:13 PM
#20
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Joined: Mar 2002
Posts: 2,552
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From: Momence, IL
Ours has a bit black tailpipe on the left, with a bit of noticeable oil consumption. No noise whatsoever, A bit of smoke from both tailpipes, but it disappears. Could it have a bad aos? We pulled the intake plennum and there was oil sitting in bank 2( right side of the engine, left exhaust )
02-13-2024 | 03:19 PM
#21
2nd Gear
Joined: Feb 2024
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