BenzWorld Junior Member
Date registered: May 2010
Location: Columbia, SC
Mentioned: 0 Post(s)
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I'm new to this forum and i apologize if i haven't setup a profile yet. I'm just really anxious to see if i can get some helpful responses on this.
I've done tons of searching on the internet but no real answer.
I have a 1992 400e, the car drives absolutely GREAT! I purchased the car about 4 months ago, and it has a little over 123000 miles on it. The first things that i did upon purchasing the vehicle were: new air filters, plugs, plug wires, distributor caps, and a Mass air sensor.
I only run 93 octane in the vehicle. I also did a dose of seafoam into the intake to help clean up any deposits. (the vehicle did sit about 4-5 months before i purchased it.) By the way, the seafoam really helped a lot.
The reason for this topic is... Ever since i purchased the car, I have had hesitation issues upon acceleration. When i say acceleration... i mean if i were to pass/go around another vehicle, it feels as if the fuel is being cut or i have a bad injector. The car runs awesome under simple everyday driving. If i floor it, it's even worse. Once the car is at a stop sign, it shakes really badly. When i goto pull away from the stop sign, I have to barely press the pedal to go or it will choke down. (but will not stall) If i've passed someone on the highway and run into this problem, i've realized that i can put the car into neutral and turn the car off and restart. It solves the problem, until i accelerate hard again.
I don't have any check engine lights on or ASR lights on. The ASR seems to be doing it's job correctly. I do have an oil pressure light on though. (bad sending unit)
I have been told about the overload protection sensor on the transmission. I don't think that is the problem because the article i read said that the car wouldn't shift past 4000rpm. Mine actually shifts fine. Although i do feel like the timing is being retarded in some way. The only thing i can think the problem could be is the throttle position sensor.
Please, someone show me that there is light at the end of the tunnel.