c32 amg gearbox ecu

[andya34]

my car doesnt shift down enough when i plant the throttle and it seems quite sluggish at times ....could this be the ecu

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[Gramma_Benz]

Originally Posted by andya34

my car doesnt shift down enough when i plant the throttle and it seems quite sluggish at times ....could this be the ecu

Did you ever do a throttle reset?

[loudandheard]

I'm having similar issues and I was thinking that it may be the intercooler pump, but I remember reading some where that the issue was related to a slipping gear or clutch. I feel the loss of acceleration in certain gears and other times the car feels like the supercharger is not engaging all the way. I need to try the the throttle reset.

[andya34]

Originally Posted by Gramma_Benz

Did you ever do a throttle reset?

No i havnt done one...how is it done

[djoa]

Its all about throttle acuator?!?! I guest so.
Tested for serval months, here is the stat. hows the jerk came up:

-start still, jerk on light throttle, no problem in deep throttle
-hold the throttle on hwy then kick down deep, no problem.
-hold the throttle on hwy then push more throttle, jerk.
-The most significant when off throttle in D, it seems get into N some time. Check with shifting to N, no rpm drop.

What I mean is, the ECU can sense the throttle angel, but not engough power to keep the engine rev up, so jerk.

[andya34]

Originally Posted by djoa

Its all about throttle acuator?!?! I guest so.
Tested for serval months, here is the stat. hows the jerk came up:

-start still, jerk on light throttle, no problem in deep throttle
-hold the throttle on hwy then kick down deep, no problem.
-hold the throttle on hwy then push more throttle, jerk.
-The most significant when off throttle in D, it seems get into N some time. Check with shifting to N, no rpm drop.

What I mean is, the ECU can sense the throttle angel, but not engough power to keep the engine rev up, so jerk.

I bought a second hand ecu took it in to mb nd now they say the car is missfiring nd the ecu is fine,,,

[alkrstev]

Originally Posted by andya34

I bought a second hand ecu took it in to mb nd now they say the car is missfiring nd the ecu is fine,,,

Please keep us updated on your situation cause I am having the same problem. I am thinking of replacing the MAP sensor (I got CEL for it) and replace the ignition wires. I also got a code for Cylinder 2 misfire, but after I reset all the codes, no CEL's showed up. The car is misfiring all the time and it jerks on partial throttle and is extremely sluggish and even though the tranny kicks down, the engine doesnt seem to have the power to match it. Let me know what you did when you fix it. Thanks in advance.

[M5CLK]

Same problem here, anyone has any update?