Check engine light @ W.O.T
06-18-2008, 07:16 AM
#1
Junior Member
Thread Starter
Join Date: Feb 2008
Location: long beach NY
Posts: 40
Likes: 0
Received 0 Likes
on
0 Posts
2002 c240 sedan
Check engine light @ W.O.T
this is my car c240, cls500 rims,cross drilled/slotted rotors all 4, amg front bumper, projector fog lights and headlamps.
So My problem started a week ago. I had a check engine light come on. It read random muiltiple misfire, and misfire on certain cylinders. So i change the spark plugs they look bad. After that the check engine light went off by its self. I drove the car and on W.O.T. the engine light cam back on with the same codes and sommething about the Maf Air meter. It started puttering and running on a couple cylinders as it was misfire from muiltiple cyclinders. I had to remove the positive cable from the battery and reset the ecu and then it started to run fine , After a while of light driving and trying not to step on the gas hard the engine light went off. If at any time i decide to step on the gas hard the engine light comes back on with the misfire and the car run like **** again. I changed the Maf sensor and it still does the same thing. Im going to change the fuel filter but other than that i have no idea.
Anyone had a similar problem?
So My problem started a week ago. I had a check engine light come on. It read random muiltiple misfire, and misfire on certain cylinders. So i change the spark plugs they look bad. After that the check engine light went off by its self. I drove the car and on W.O.T. the engine light cam back on with the same codes and sommething about the Maf Air meter. It started puttering and running on a couple cylinders as it was misfire from muiltiple cyclinders. I had to remove the positive cable from the battery and reset the ecu and then it started to run fine , After a while of light driving and trying not to step on the gas hard the engine light went off. If at any time i decide to step on the gas hard the engine light comes back on with the misfire and the car run like **** again. I changed the Maf sensor and it still does the same thing. Im going to change the fuel filter but other than that i have no idea.
Anyone had a similar problem?
Last edited by arodracing; 06-18-2008 at 07:22 AM.
06-18-2008, 07:22 PM
#3
MBWorld Fanatic!
06-18-2008, 07:47 PM
#4
Junior Member
Thread Starter
Join Date: Feb 2008
Location: long beach NY
Posts: 40
Likes: 0
Received 0 Likes
on
0 Posts
2002 c240 sedan
thanxs for all the help on the rims. I love them and people give me complimnets all the time.
1) yes i just installed K&N filters when i changed the plugs
2) yes i bought it off ebay , but i need to check if the maf code still pops up.
http://cgi.ebay.com/ebaymotors/ws/eB...249489646&rd=1
06-18-2008, 09:30 PM
#6
MBWorld Fanatic!
how do the plug wires look? i had a similar problem on my focus a few years back- turns out i had slit the insulation in one spot, causing it to arc. the problem only presented itself when i was drive the car hard.
06-18-2008, 10:42 PM
#7
Junior Member
Thread Starter
Join Date: Feb 2008
Location: long beach NY
Posts: 40
Likes: 0
Received 0 Likes
on
0 Posts
2002 c240 sedan
they looked alright. I will double check all of that. thanxs
Trending Topics
06-19-2008, 01:05 AM
#8
Member
Join Date: Sep 2007
Location: nyc
Posts: 232
Likes: 0
Received 0 Likes
on
0 Posts
c32
have this problem right now...
However, it is only one cylinder misfiring at a time, and the computer also stores some kind of malfunction with the cat. converter or something.
My mechanic says it might be a faulty cat. converter. Whatever it is, I am looking to figure this problem out...
If i solve it before you ill post.
However, it is only one cylinder misfiring at a time, and the computer also stores some kind of malfunction with the cat. converter or something.
My mechanic says it might be a faulty cat. converter. Whatever it is, I am looking to figure this problem out...
If i solve it before you ill post.
06-22-2008, 05:46 PM
#9
Junior Member
Thread Starter
Join Date: Feb 2008
Location: long beach NY
Posts: 40
Likes: 0
Received 0 Likes
on
0 Posts
2002 c240 sedan
figured out the problem, dirty fuel filter, it never been changed. i hope the fuel pump is ok. you can feel the diffrence. now i only get cyclinder 6 misfire when i step on it hard.
06-23-2008, 08:36 AM
#10
Junior Member
Thread Starter
Join Date: Feb 2008
Location: long beach NY
Posts: 40
Likes: 0
Received 0 Likes
on
0 Posts
2002 c240 sedan
How would you know if the fuel pump is bad. I put some lucas fuel treament and it seems to run fine and @ WOT i don't get the check engine light of misfire on cyc 6.
But... it the morning of start ups when i step on the gas the car hesitates and sometime bucks , like its not spraying fuel. then it stops after a good warm up. it idles a little rough. but no check engine light comes on.
Anyone had this problem.
thinking its the fuel pump or coils???????????
Please help
But... it the morning of start ups when i step on the gas the car hesitates and sometime bucks , like its not spraying fuel. then it stops after a good warm up. it idles a little rough. but no check engine light comes on.
Anyone had this problem.
thinking its the fuel pump or coils???????????
Please help
Last edited by arodracing; 06-24-2008 at 08:24 AM.
