'02 E430 engine codes and 100k maintenance
02-26-2013, 01:57 PM
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2002 E430
'02 E430 engine codes and 100k maintenance
My 2002 E430 has 105k miles and generally runs great. I have had the car serviced at dealer through first 75k miles and now at indy.
The CEL light came on and got the following codes: P0400 P0123 P0134 P0154.
For the P0400 code I'm going to attempt the "ohlord" procedure if I can get some clarification as to where to drill the hole.
For the P0123 code should I to try to clean it? Or is it just time to replace?
On about 3 or 4 different occasions in the past 2 years the car failed to accelerate. I reset the transmission by stepping on gas pedal for a minute and then turning car on. That's worked every time.
The P0134 and P0154 codes refer to the oxygen sensors.
I've read that the non-acceleration and the oxygen sensor fault codes could be due to a bad CPS.
The car runs great and my wife really loves the styling, designo espresso edition, and have no qualms about ordering all these sensors from Autohausz, about $550, ouch!
Besides the fluid changes and spark plug replacement, any other times you guys recommend also taken care of?
Thank you guys in advance!
The CEL light came on and got the following codes: P0400 P0123 P0134 P0154.
For the P0400 code I'm going to attempt the "ohlord" procedure if I can get some clarification as to where to drill the hole.
For the P0123 code should I to try to clean it? Or is it just time to replace?
On about 3 or 4 different occasions in the past 2 years the car failed to accelerate. I reset the transmission by stepping on gas pedal for a minute and then turning car on. That's worked every time.
The P0134 and P0154 codes refer to the oxygen sensors.
I've read that the non-acceleration and the oxygen sensor fault codes could be due to a bad CPS.
The car runs great and my wife really loves the styling, designo espresso edition, and have no qualms about ordering all these sensors from Autohausz, about $550, ouch!
Besides the fluid changes and spark plug replacement, any other times you guys recommend also taken care of?
Thank you guys in advance!
02-27-2013, 08:01 AM
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'99 E430, '05 ML500, '15 GLK350
I would probably do the O2 sensors after resolving the EGR and throttle position sensor problems, but check Amazon for prices on them. You can do better than $400.
02-27-2013, 11:49 AM
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Your main problem is with your indy-----he is not telling you the correct and complete story on the issue with the EGR and O2 sensors.
Additionally don't do any "bonehead" drilling of the EGR on your 113.940---you will ruin the system and then you will get a "bonehead" message to PM for the real story.
Your emissions system has four O2 sensors--R L and up and down and without the freeze frame data---which one will you change??
Your EGR valve is controlled by an EGR vacuum transducer, which is most likely the fault, but once again with out freeze frame data----who knows and once again what are you going to change!!
You need much more information or someone has the information and they haven't told you the complete story.
PS: If he/she or whatever had good MB diagnostics or equal he would have access to the HHT with very different and very specific fault codes for your model/engine to quickly solve your issues---ask more questions!!
PSS: forget about the CPS as it has nothing to do with your emissions issues---concentrate on the finding the EGR fault before changing any O2 sensors---then go to the next stage.
Additionally don't do any "bonehead" drilling of the EGR on your 113.940---you will ruin the system and then you will get a "bonehead" message to PM for the real story.
Your emissions system has four O2 sensors--R L and up and down and without the freeze frame data---which one will you change??
Your EGR valve is controlled by an EGR vacuum transducer, which is most likely the fault, but once again with out freeze frame data----who knows and once again what are you going to change!!
You need much more information or someone has the information and they haven't told you the complete story.
PS: If he/she or whatever had good MB diagnostics or equal he would have access to the HHT with very different and very specific fault codes for your model/engine to quickly solve your issues---ask more questions!!
PSS: forget about the CPS as it has nothing to do with your emissions issues---concentrate on the finding the EGR fault before changing any O2 sensors---then go to the next stage.
