Quad Exhaust solved my CEL problem!!!
Thread Starter
Super Member
Joined: May 2004
Posts: 612
Likes: 2
From: Seoul, Korea
04 CLK55, IWC CLS55 AMG(one of 55), 07 Honda CR-V 4WD
Quad Exhaust solved my CEL problem!!!
Ever since I had Kleemann headers on my W209 CLK55, I had the O2 sensor warning coming on after I give it a little spirited run. P141, P161 were shown on the OBD2 reader. Even had a talk with Kleemann HQ in Denmark to solve the problem. They offered to erase a part in ECU where it detects secondary O2 sensors' activities but I just thought that it does not solve the root of my car's malfunction.
I did everything that people and kleemann told me until someone on this forum added a sport cat and moved sec. O2 sensors to behind of new catalytic converters. He said that solved the problem but I just simply did not have time to put the car in the shop and wait until it gets done. So I think I have been erasing the CEL like more than 1000 times with my OBD2 reader.
After I installed 63 AMG exhaust system which came with resonator unlike Dual Exhaust pipe my car had originally, The CEL light never came back. I had placed the sec. O2 sensors behind the sec. cats as Kleemann told me and the distance was too far that O2 sensors did not get the operating temperature soon enough that it triggered the CEL light. Now that I have resonator right behind, I think it creates some back pressure and helps the rear O2 sensors heat up quicker than before.
just wanted to share that I am free from using OBD2 reader.
I did everything that people and kleemann told me until someone on this forum added a sport cat and moved sec. O2 sensors to behind of new catalytic converters. He said that solved the problem but I just simply did not have time to put the car in the shop and wait until it gets done. So I think I have been erasing the CEL like more than 1000 times with my OBD2 reader.
After I installed 63 AMG exhaust system which came with resonator unlike Dual Exhaust pipe my car had originally, The CEL light never came back. I had placed the sec. O2 sensors behind the sec. cats as Kleemann told me and the distance was too far that O2 sensors did not get the operating temperature soon enough that it triggered the CEL light. Now that I have resonator right behind, I think it creates some back pressure and helps the rear O2 sensors heat up quicker than before.
just wanted to share that I am free from using OBD2 reader.
MBWorld Fanatic!
Joined: Feb 2004
Posts: 5,475
Likes: 5
From: City with Tall buildings!
C43/55,2k11 Volvo S60 T6AWD,2k Audi B5 S4,95 Eagle Talon Tsi AWD 500+awhp
Ever since I had Kleemann headers on my W209 CLK55, I had the O2 sensor warning coming on after I give it a little spirited run. P141, P161 were shown on the OBD2 reader. Even had a talk with Kleemann HQ in Denmark to solve the problem. They offered to erase a part in ECU where it detects secondary O2 sensors' activities but I just thought that it does not solve the root of my car's malfunction.
I did everything that people and kleemann told me until someone on this forum added a sport cat and moved sec. O2 sensors to behind of new catalytic converters. He said that solved the problem but I just simply did not have time to put the car in the shop and wait until it gets done. So I think I have been erasing the CEL like more than 1000 times with my OBD2 reader.
After I installed 63 AMG exhaust system which came with resonator unlike Dual Exhaust pipe my car had originally, The CEL light never came back. I had placed the sec. O2 sensors behind the sec. cats as Kleemann told me and the distance was too far that O2 sensors did not get the operating temperature soon enough that it triggered the CEL light. Now that I have resonator right behind, I think it creates some back pressure and helps the rear O2 sensors heat up quicker than before.
just wanted to share that I am free from using OBD2 reader.
I did everything that people and kleemann told me until someone on this forum added a sport cat and moved sec. O2 sensors to behind of new catalytic converters. He said that solved the problem but I just simply did not have time to put the car in the shop and wait until it gets done. So I think I have been erasing the CEL like more than 1000 times with my OBD2 reader.
After I installed 63 AMG exhaust system which came with resonator unlike Dual Exhaust pipe my car had originally, The CEL light never came back. I had placed the sec. O2 sensors behind the sec. cats as Kleemann told me and the distance was too far that O2 sensors did not get the operating temperature soon enough that it triggered the CEL light. Now that I have resonator right behind, I think it creates some back pressure and helps the rear O2 sensors heat up quicker than before.
just wanted to share that I am free from using OBD2 reader.
MBWorld Fanatic!
Joined: May 2003
Posts: 4,005
Likes: 106
From: Houston, TX
2015 E250D
Ever since I had Kleemann headers on my W209 CLK55, I had the O2 sensor warning coming on after I give it a little spirited run. P141, P161 were shown on the OBD2 reader. Even had a talk with Kleemann HQ in Denmark to solve the problem. They offered to erase a part in ECU where it detects secondary O2 sensors' activities but I just thought that it does not solve the root of my car's malfunction.
I did everything that people and kleemann told me until someone on this forum added a sport cat and moved sec. O2 sensors to behind of new catalytic converters. He said that solved the problem but I just simply did not have time to put the car in the shop and wait until it gets done. So I think I have been erasing the CEL like more than 1000 times with my OBD2 reader.
After I installed 63 AMG exhaust system which came with resonator unlike Dual Exhaust pipe my car had originally, The CEL light never came back. I had placed the sec. O2 sensors behind the sec. cats as Kleemann told me and the distance was too far that O2 sensors did not get the operating temperature soon enough that it triggered the CEL light. Now that I have resonator right behind, I think it creates some back pressure and helps the rear O2 sensors heat up quicker than before.
just wanted to share that I am free from using OBD2 reader.
I did everything that people and kleemann told me until someone on this forum added a sport cat and moved sec. O2 sensors to behind of new catalytic converters. He said that solved the problem but I just simply did not have time to put the car in the shop and wait until it gets done. So I think I have been erasing the CEL like more than 1000 times with my OBD2 reader.
After I installed 63 AMG exhaust system which came with resonator unlike Dual Exhaust pipe my car had originally, The CEL light never came back. I had placed the sec. O2 sensors behind the sec. cats as Kleemann told me and the distance was too far that O2 sensors did not get the operating temperature soon enough that it triggered the CEL light. Now that I have resonator right behind, I think it creates some back pressure and helps the rear O2 sensors heat up quicker than before.
just wanted to share that I am free from using OBD2 reader.
Did you send your ECU to kleemann to delete secondary o2's. We've had 4 cars with similar problems as yours. It has to be coded out.
Thread Starter
Super Member
Joined: May 2004
Posts: 612
Likes: 2
From: Seoul, Korea
04 CLK55, IWC CLS55 AMG(one of 55), 07 Honda CR-V 4WD
Yes I did. CEL came back right away. It was like 2 yrs ago. The wiring of O2 sensors were perfect but it kept coming back. But not anymore. The STAR does not show error codes anymore.
MBWorld Fanatic!
Joined: Feb 2004
Posts: 5,475
Likes: 5
From: City with Tall buildings!
C43/55,2k11 Volvo S60 T6AWD,2k Audi B5 S4,95 Eagle Talon Tsi AWD 500+awhp
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