What did I do!?
Thread Starter
MBWorld Fanatic!
Joined: Feb 2010
Posts: 1,506
Likes: 130
From: Bolingbrook Illinois
1999 C43 Amg
What did I do!?
Here's what's happening and what I did to get here.
- I removed air mass sensor
- Took of all the plastic parts that lead to the throttle butterfly
- I used a rag and throttle cleaner to clean the butterfly (it was very dirty/oily)
- Put everything back making sure all wires and hoses where connected again.
Now when I start the car the rpm's goes to about 2000 and sticks till I turn off the car? Sometimes this does not happen but most of the time it does and it's very annoying.
What did I do wrong and any ideas what to do to fix this?
Thanks In Advance.
- I removed air mass sensor
- Took of all the plastic parts that lead to the throttle butterfly
- I used a rag and throttle cleaner to clean the butterfly (it was very dirty/oily)
- Put everything back making sure all wires and hoses where connected again.
Now when I start the car the rpm's goes to about 2000 and sticks till I turn off the car? Sometimes this does not happen but most of the time it does and it's very annoying.
What did I do wrong and any ideas what to do to fix this?
Thanks In Advance.
MBWorld Fanatic!
Joined: Mar 2010
Posts: 5,892
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From: Land of mountains, cheese, chocolate and watches
12' W204 C63 AMG coupe "T-Rex", 12' W451 Smart Fortwo Pulse (99' W202 C43 AMG + Ultima Can-Am sold)
You could have killed the MAF. Did you touch any element inside?
MBWorld Fanatic!
Joined: Jan 2007
Posts: 1,152
Likes: 29
From: Sydney, Australia
190D 2.5 (x2), 190E 2.6, W202 C240,W202 C43 (C55), W210 E55, W212 E250CDI
Does the engine respond at all to the throttle? Was the throttle body really dirty?
Make sure the crankcase vent hose to the air duct just before the throttle is connected.
Try turning the ignition on without starting it and leave it for 2-3mins. turn off, wait 1 min then start it, this relearns the closed position of the throttle as it'll be different now that it's clean.
Make sure the crankcase vent hose to the air duct just before the throttle is connected.
Try turning the ignition on without starting it and leave it for 2-3mins. turn off, wait 1 min then start it, this relearns the closed position of the throttle as it'll be different now that it's clean.
Thread Starter
MBWorld Fanatic!
Joined: Feb 2010
Posts: 1,506
Likes: 130
From: Bolingbrook Illinois
1999 C43 Amg
Does the engine respond at all to the throttle? Was the throttle body really dirty?
Make sure the crankcase vent hose to the air duct just before the throttle is connected.
Try turning the ignition on without starting it and leave it for 2-3mins. turn off, wait 1 min then start it, this relearns the closed position of the throttle as it'll be different now that it's clean.
Make sure the crankcase vent hose to the air duct just before the throttle is connected.
Try turning the ignition on without starting it and leave it for 2-3mins. turn off, wait 1 min then start it, this relearns the closed position of the throttle as it'll be different now that it's clean.
Btw guys, the maf is fine and the response AFTER i cleaned the throttle is really great.
Thanks for the help!
Super Member
Joined: Dec 2009
Posts: 940
Likes: 0
From: Chapel Hill, NC/Montreal, QC
1995 C36 AMG, 1998 C43 AMG
I'm not sure what you mean by sticks at 2000rpm. Is the car drivable? Or it doesn't respond at all to throttle input? If that's the case it sounds like what happened to me after I removed and cleaned by throttle body and the remedy in my case was a new tb! 
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MBWorld Fanatic!
Joined: Apr 2005
Posts: 3,784
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From: SCV SoCal
2002 CLK430
If I read this properly, the problem has been corrected. However, when the problem active, I think he meant the engine was idling at 2000 RPM. I can’t say for the OP, but I wouldn’t drive my car if it idled at 2000. The hammering of motor mounts while dropping the shifter from park to drive, ditto the Flex Discs, the overheating of fluid while sitting at a light and who knows what type of internal transmission damage are all too much for me to consider.
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