NEED HELP- 3 CEL codes!!!!
Thread Starter
Super Member
Joined: Jul 2004
Posts: 523
Likes: 4
From: NE. TN
06 C350 sport 6MT
NEED HELP- 3 CEL codes!!!!
39k milew on car, about a month ago i started having problems. car start up and runs fine when cold. but when u run into store for 5 minutew and come out and try to start up , car cranks a long time to start up , runsrough, and can not go over 3.5k rpm. let it cool down and all is well went to autozone and obdii meter said bad cps, so i repace it with help of Glyn Ruck-THANK YOU and it was a challenging repacement. problem not resolved!!! go back to autozone and get these codes P0335 P0101 P0172 i clean maf w maf cleaner and put dielectric grease on connector, also did this w cps connector. same problem i must admit that i did break off by accident a few months ago 1 of the 2 plastic flanges on the maf body that secure the maf to the engine. it still seems attached well w just 1 flange connector. whas the problem, could it be from the dielectric grease??? could it be cause of having only 1 of 2 maf flange connectors??? if so, can i buy just the plastic maf body and use my current maf sensor??? thanx, mike
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Joined: Jun 2008
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From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
P0335 = Crankshaft Position Sensor A Circuit Malfunction
P0101 = Mass or Volume Circuit Range Performance Problem
P0172 = System too Rich (Bank 1)
Presume you had cancelled all codes & these returned?
Seem to have a poor connection at new CPS.
Running well when cold makes sense - she is running rich. This will give poor hot running.
This is not an air or vacuum leak or she would run too lean.
It seems that you have a MAF problem - clean &/or replace.
You could also have a faulty temperature sensor. CPU thinks the car is cold & enriches mixture.
Check MAF, check/replace temp sensor.
Investigate CPS connection.
Good luck!
P0101 = Mass or Volume Circuit Range Performance Problem
P0172 = System too Rich (Bank 1)
Presume you had cancelled all codes & these returned?
Seem to have a poor connection at new CPS.
Running well when cold makes sense - she is running rich. This will give poor hot running.
This is not an air or vacuum leak or she would run too lean.
It seems that you have a MAF problem - clean &/or replace.
You could also have a faulty temperature sensor. CPU thinks the car is cold & enriches mixture.
Check MAF, check/replace temp sensor.
Investigate CPS connection.
Good luck!
Thread Starter
Super Member
Joined: Jul 2004
Posts: 523
Likes: 4
From: NE. TN
06 C350 sport 6MT
did i screw up when i coated connectors to maf and new cps w dielectric grease??? maybe the grease is shorting out some pins??? if so, how do i clean the grease off, ie min spirits and elbow grease, maf cleaner in spray can?? thanx, mike
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Thread Starter
Super Member
Joined: Jul 2004
Posts: 523
Likes: 4
From: NE. TN
06 C350 sport 6MT
update, cleaned maf . cleaned connectors to maf and cps with contact cleaner. went for a drive and car ran great for 10 minutes and then acted up again-- long crank to start, runs ruff, and cant rev over 3500 rpm. only happens when car is hot and usually on restart, forgot to mention sometimes get message on dash " ESP malfunction, go to work shop" and " speedtronic not funtioning proceed to work shop" this is verrrrrry frustrating. the temp gauge in dash appears to function normally, slowly climbing to 85 degrees when fully warmed up. glyn had mentioned testing the temp sensor, hey im up for anything at this point, where is it and how do i test it??? many thanx, mike
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Super Moderator
Joined: Jun 2008
Posts: 19,942
Likes: 191
From: Llandudno, Cape Town, South Africa
late 2009 CLK 350 Coupe Elegance, '65 Jaguar S Type wires
Re PM
See 30 in the diagram. Frankly - you can't really test these sender unit's & need to ensure they are making a good earth.
Easiest to replace. It might not be the temp sensor but it is suprising how often it is the culprit. We don't have the pleasure of having spares lying around like the dealer has.
See 30 in the diagram. Frankly - you can't really test these sender unit's & need to ensure they are making a good earth.
Easiest to replace. It might not be the temp sensor but it is suprising how often it is the culprit. We don't have the pleasure of having spares lying around like the dealer has.
