maybe a fuel pump. what about spark plugs.
Oxygen Sensor Question
Thread Starter
MBWorld Fanatic!
Joined: May 2006
Posts: 1,486
Likes: 4
From: San Antonio, Tx
2000 CLK430
Help w/ troubleshooting: O2 sensor, MAF, MAP???
It seems that I now have an Oxygen sensor that is out. I am getting the same errors that I got last time:
CEL light with:
MAF Sensor
O2 Sensor
MAP Sensor
I already replaced the MAF and it ran well until a couple says ago when the CEL came on again and is starting to run rough and even shake at times. I am getting the same symptoms like having my car BOG down when I stomp on the gas. I have to slowly give it gas in order to take off.
So my question:
It states that O2 Sensor on Bank 1 Sensor 1 is bad. Where is this one located? Driver or Passenger side and is it before or after the catalytic converter?
It seems that I will now be replacing both cats, removing my resonator, and one of my O2 Sensors at the same time.
Any help is really appreciated!!
Greg
CEL light with:
MAF Sensor
O2 Sensor
MAP Sensor
I already replaced the MAF and it ran well until a couple says ago when the CEL came on again and is starting to run rough and even shake at times. I am getting the same symptoms like having my car BOG down when I stomp on the gas. I have to slowly give it gas in order to take off.
So my question:
It states that O2 Sensor on Bank 1 Sensor 1 is bad. Where is this one located? Driver or Passenger side and is it before or after the catalytic converter?
It seems that I will now be replacing both cats, removing my resonator, and one of my O2 Sensors at the same time.
Any help is really appreciated!!
Greg
Last edited by gregory13lil; Mar 11, 2008 at 11:42 PM.
Thread Starter
MBWorld Fanatic!
Joined: May 2006
Posts: 1,486
Likes: 4
From: San Antonio, Tx
2000 CLK430
Ok no help so far...Does anyone have experience with the Ebay O2 Sensors lie the one below:
http://cgi.ebay.com/ebaymotors/OXYGE...spagenameZWDVW
http://cgi.ebay.com/ebaymotors/OXYGE...spagenameZWDVW
Thread Starter
MBWorld Fanatic!
Joined: May 2006
Posts: 1,486
Likes: 4
From: San Antonio, Tx
2000 CLK430
Ok I got my codes pulled and here they are:
PO100: MAF or MAP sensor condition
P0130: HO2S 11 circuit condition (Heated Oxygen sensor Bank 1 Sensor 1)
P0150: HO2S-21 circuit condition (Heated Oxygen sensor Bank 2 Sensor 1)
P0170: Fuel Trim Bank 1
P0173: Fuel Trim Bank 2 condition
I have already replaced the MAF a month as stated earlier BUT with one that I bought off of Ebay for 120 bucks. Could it actually be the MAF again since it is affecting both Banks??? I am at a loss on what to do...NEW MAF or 2 new O2 sensors??
UPDATE: I went back to the basics and took the engine cover off and checked all my connections on the MAF and the sensors. I actually found a loose spark plug cable in Bank one (passenger side) number 3. It definitely runs a hell of alot smoother, but we will see how the car acts in the morning when it is cold.
FYI: I was told and read numerous times that Bank 1 was in fact on the drivers side...THIS IS WRONG. BANK 1 is in fact on the passenger side. If you look at the engine block it will state cylinder 1,2,3, and 4 and will say 1 on all of them at the top of the cylinder id. The driver side has a 2 on top of all the cylinder numbers 5,6,7,8. It also has some letters but I have no idea what those are for. Hopefully I have found the problem but I doubt that one loose spark plug wire would cause all those codes to go off.
I will keep you updated and hopefully this will help everyone else out someday.
UPDATE 2: Well I guess the loose spark plug cable was not the problem. I still have the hesitation when the car is cold in the morning. This is making me mad now.
Greg
PO100: MAF or MAP sensor condition
P0130: HO2S 11 circuit condition (Heated Oxygen sensor Bank 1 Sensor 1)
P0150: HO2S-21 circuit condition (Heated Oxygen sensor Bank 2 Sensor 1)
P0170: Fuel Trim Bank 1
P0173: Fuel Trim Bank 2 condition
I have already replaced the MAF a month as stated earlier BUT with one that I bought off of Ebay for 120 bucks. Could it actually be the MAF again since it is affecting both Banks??? I am at a loss on what to do...NEW MAF or 2 new O2 sensors??
UPDATE: I went back to the basics and took the engine cover off and checked all my connections on the MAF and the sensors. I actually found a loose spark plug cable in Bank one (passenger side) number 3. It definitely runs a hell of alot smoother, but we will see how the car acts in the morning when it is cold.
FYI: I was told and read numerous times that Bank 1 was in fact on the drivers side...THIS IS WRONG. BANK 1 is in fact on the passenger side. If you look at the engine block it will state cylinder 1,2,3, and 4 and will say 1 on all of them at the top of the cylinder id. The driver side has a 2 on top of all the cylinder numbers 5,6,7,8. It also has some letters but I have no idea what those are for. Hopefully I have found the problem but I doubt that one loose spark plug wire would cause all those codes to go off.
I will keep you updated and hopefully this will help everyone else out someday.
UPDATE 2: Well I guess the loose spark plug cable was not the problem. I still have the hesitation when the car is cold in the morning. This is making me mad now.
Greg
Last edited by gregory13lil; Mar 12, 2008 at 12:29 PM. Reason: Update on Car
Thread Starter
MBWorld Fanatic!
Joined: May 2006
Posts: 1,486
Likes: 4
From: San Antonio, Tx
2000 CLK430
I have brand new Spark plugs that were put in about 4 months ago so I know that it cant be that. The only other thing that it maybe could be is new plug wires. But now I am just basically guessing.
Thanks for the response though!!
Greg
Thread Starter
MBWorld Fanatic!
Joined: May 2006
Posts: 1,486
Likes: 4
From: San Antonio, Tx
2000 CLK430
I just found an O2 sensor for sale in the classifieds. It is the Universal Bosch one, I am going to buy it and replace one of the sensors and see what happens. If I still end up getting the codes then it might actually need a new MAF. Are you getting the other codes that I have as well or just those 2. Are you having the most hesittaion when the car is cold?
Trending Topics
Super Member
Joined: May 2003
Posts: 784
Likes: 0
From: Ga.
All of them!
I just found an O2 sensor for sale in the classifieds. It is the Universal Bosch one, I am going to buy it and replace one of the sensors and see what happens. If I still end up getting the codes then it might actually need a new MAF. Are you getting the other codes that I have as well or just those 2. Are you having the most hesittaion when the car is cold?
Don't put a universal in.
I'll read this tomorrow when I'm not as tired, and then I'll give you some advice.
Rich
Last edited by mbenzman; Mar 13, 2008 at 11:13 PM.
MB World Stories
The Best of Mercedes & AMG
7 Craziest Things AMG Gas Ever Built
Verdad Gallardo
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know
Verdad Gallardo
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)
Verdad Gallardo
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun
Verdad Gallardo
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren
Verdad Gallardo
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine
Verdad Gallardo
Flawlessly Restored Mercedes 190E Evo II Heads to Auction
Verdad Gallardo
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know
Verdad Gallardo
Mercedes EQS Gets A Major Update: Everything You Need to Know
Verdad Gallardo
Thread Starter
MBWorld Fanatic!
Joined: May 2006
Posts: 1,486
Likes: 4
From: San Antonio, Tx
2000 CLK430
OK, THANK YOU THANK YOU THANK YOU!!!! I already bought the O2 Universal but it was only 40 bucks so I will just put it back up for sale or hell for free if i dont need it.
Greg
Super Member
Joined: May 2003
Posts: 784
Likes: 0
From: Ga.
All of them!
Ok I got my codes pulled and here they are:
PO100: MAF or MAP sensor condition
P0130: HO2S 11 circuit condition (Heated Oxygen sensor Bank 1 Sensor 1)
P0150: HO2S-21 circuit condition (Heated Oxygen sensor Bank 2 Sensor 1)
P0170: Fuel Trim Bank 1
P0173: Fuel Trim Bank 2 condition
I have already replaced the MAF a month as stated earlier BUT with one that I bought off of Ebay for 120 bucks. Could it actually be the MAF again since it is affecting both Banks??? I am at a loss on what to do...NEW MAF or 2 new O2 sensors??
UPDATE: I went back to the basics and took the engine cover off and checked all my connections on the MAF and the sensors. I actually found a loose spark plug cable in Bank one (passenger side) number 3. It definitely runs a hell of alot smoother, but we will see how the car acts in the morning when it is cold.
FYI: I was told and read numerous times that Bank 1 was in fact on the drivers side...THIS IS WRONG. BANK 1 is in fact on the passenger side. If you look at the engine block it will state cylinder 1,2,3, and 4 and will say 1 on all of them at the top of the cylinder id. The driver side has a 2 on top of all the cylinder numbers 5,6,7,8. It also has some letters but I have no idea what those are for. Hopefully I have found the problem but I doubt that one loose spark plug wire would cause all those codes to go off.
I will keep you updated and hopefully this will help everyone else out someday.
UPDATE 2: Well I guess the loose spark plug cable was not the problem. I still have the hesitation when the car is cold in the morning. This is making me mad now.
Greg
PO100: MAF or MAP sensor condition
P0130: HO2S 11 circuit condition (Heated Oxygen sensor Bank 1 Sensor 1)
P0150: HO2S-21 circuit condition (Heated Oxygen sensor Bank 2 Sensor 1)
P0170: Fuel Trim Bank 1
P0173: Fuel Trim Bank 2 condition
I have already replaced the MAF a month as stated earlier BUT with one that I bought off of Ebay for 120 bucks. Could it actually be the MAF again since it is affecting both Banks??? I am at a loss on what to do...NEW MAF or 2 new O2 sensors??
UPDATE: I went back to the basics and took the engine cover off and checked all my connections on the MAF and the sensors. I actually found a loose spark plug cable in Bank one (passenger side) number 3. It definitely runs a hell of alot smoother, but we will see how the car acts in the morning when it is cold.
FYI: I was told and read numerous times that Bank 1 was in fact on the drivers side...THIS IS WRONG. BANK 1 is in fact on the passenger side. If you look at the engine block it will state cylinder 1,2,3, and 4 and will say 1 on all of them at the top of the cylinder id. The driver side has a 2 on top of all the cylinder numbers 5,6,7,8. It also has some letters but I have no idea what those are for. Hopefully I have found the problem but I doubt that one loose spark plug wire would cause all those codes to go off.
I will keep you updated and hopefully this will help everyone else out someday.
UPDATE 2: Well I guess the loose spark plug cable was not the problem. I still have the hesitation when the car is cold in the morning. This is making me mad now.
Greg
The V8 engine bank 1 is passenger side front to rear cylinders 1-4. Bank 2 is drivers side, cylinder 5-8 front to rear. The coils have a diagram on them showing A & B for the two spark plug wires to be connected to the proper plugs which are marked A & B on the valve cover just above the spark plugs for each cylinder.
You may want to just call me for more diagnosis.
Thread Starter
MBWorld Fanatic!
Joined: May 2006
Posts: 1,486
Likes: 4
From: San Antonio, Tx
2000 CLK430
Thanks so much..I will look at all these things this weekend. But, I think you may be onto something with the Cats. I hear that metal clinging sound that may be coming from my cats. I just didnt think that they would be causing the problem. It could just be getting clogged and causing the problem.
Thread Starter
MBWorld Fanatic!
Joined: May 2006
Posts: 1,486
Likes: 4
From: San Antonio, Tx
2000 CLK430
If I were working on this, I would check the fuel pressure, test the entire intake system for leakage. Then I would be suspect of the Cats being clogged or a defective maf (mass air flow) sensor, not the map (manifold absolute pressure) sensor, which your car also has.
The V8 engine bank 1 is passenger side front to rear cylinders 1-4. Bank 2 is drivers side, cylinder 5-8 front to rear. The coils have a diagram on them showing A & B for the two spark plug wires to be connected to the proper plugs which are marked A & B on the valve cover just above the spark plugs for each cylinder.
You may want to just call me for more diagnosis.
The V8 engine bank 1 is passenger side front to rear cylinders 1-4. Bank 2 is drivers side, cylinder 5-8 front to rear. The coils have a diagram on them showing A & B for the two spark plug wires to be connected to the proper plugs which are marked A & B on the valve cover just above the spark plugs for each cylinder.
You may want to just call me for more diagnosis.
I also checked all the Spark plug wires to ensure that they were all in the right place and plugged in tightly and they all were.
I drove it right after I did this and I still had the hesitation when cold. I then did the ECU reset procedure by unhooking the battery for 30 seconds and plugged it back up. I reset all the car stuff and let it run for 5 minutes and it ran beautifully. BUT, it was warm by then cause I let it run for 5 minutes like the ECU instructions stated.
I will run it again in the morning when it is cold and see if I still have the hesitation AGAIN!!!
Newbie
Joined: Aug 2011
Posts: 3
Likes: 0
E320
O2 sensor... Can you hardwire and how
Hey everyone, I recently replace the infamous wire harness, as well as sparkplugs and wires and boots, still having issues. I noticed all of the wires under the passenger seat for the 02 sensor have been completly ruined, I want to cut out the bad and solder back together but Id have to take out both of the connects is this possible? Also the green seperate on has a wire within a wire on one end and just one black wire on the other, so whats that all about?? Thanks for any help!!
