I have replaced the wiring harness on my 1995 E320 Cabriolet. Also I replaced the wiring on the Electronic Acelerator. I am having an issue(s) that I am hoping someone can help me with.
When I turn the key to on the EA makes a loud click, also I can feel the throttle pedal move right before the click of the EA.
I am able to start the car by pressing the pedal just as it fires. I also have to use the pedal to keep it running.
I am having to push the pedal beyond halfway down to get the throttle to respond.
Once it warms up it wants to idle around 4-500 RPM.
The car can then be driven although the shift points are high, 5500 RPM from 2nd to 3rd. I usually let off the pedal and it will shift. Downshifting does not seem to be a problem.
The Check Engine light comes on a day or so after clearing codes. The ASR light is always on.
I have pulled the following codes,
Pin 3 =
6 - Idle speed control faulty
Pin 8 =
8 - Idle speed control (ISC) system at upper or lower control stop or
CC or EA indicates "limp home" mode.
Pin 14 =
3 - Right EA/CC/ISC actuator (left cylinder bank)(M16/1)
11 - Closed throttle recognition signal to engine control
module (HFM-SFI).
Fuel safety shut-off to engine control module (HFM-SFI)
14 - Closed throttle position contact switch
I cleared the codes but they came back the next day. Each time I clear them the same ones show up daily.
I then decided to do testing using the AllData EA Test Steps from the Trouble Code Diagnostic Charts.
I copied and edited the steps to show my results and notes. These are included as 4 attachments to this request.
Tests used were 2-10 and 19. The results of test 5-9 were within the Nomian Values listed on the charts.
Number 19 was not good. The results seem almost backwards!
Tests 2-4 were within range of the nominal values but are curious in that if I switched the results they would be more realistic(closer) to what I would expect to see. I am probably misinterpreting the data!
Test 10 was 0v although at first it was 14v then quickly went to 9v and finally to 0v. I am thinking this is fallout from the other results.
I almost seems like I have the Closed Throttle and Wide Open Throttle signals reversed. I did replace the Closed Throttle Sensor in the gas pedal assembly.
Any help or insight would be appreciated. Hopefully I have not provided to messy of a description of my troubles!!!
Not real sure about my codes but my problems are identical in my 95 E320. I've replaced the throttle actuator and the wiring harness was done before I bought the vehicle. I also recently replaced my closed throttle position sensor and still the same issues. Could it be the CC/ASR/EA computer? This is my last hope. Help please!!! I love this car and this problem is killing me.
I am borrowing a code reader Monday I will post results as soon as I get them. I understand this is an old post but it nailed the problem on the head and figured I would continue it seeing as how so many people seem to be having this issue.
Here are my results from the Radio Shack code reader....
Pin 3 - Code 6 - Idle Speed Control Faulty
Pin 8 - Code 8 - ISC system at upper or lower control stop OR CC or EA
indicates "limp home" mode
Pin 14 - Code 2 - EA/CC/ISC control module (N4/1) or Safety contact switch (M16/1s1) or Stop lamp switch or Cruise control switch or Actual value potentiometer or Starter lock-out/back-up lamp switch or engine speed signal or vehicle speed signal or closed throttle position switch or safety relay in EA/CC/ISC control module
I have replaced the Throttle Actuator, CTP Switch, and Engine Harness. The ASR light is always on and "limp home" mode is always activated no matter what conditions.
Sounds like throttle actuator. Is it new or rebuilt? I would replace the stop lamp switch, cheap and easy to replace, clear the codes and see what comes back. ASR is very finicky and not good about telling you what's really ailing it.
Sounds like throttle actuator. Is it new or rebuilt? I would replace the stop lamp switch, cheap and easy to replace, clear the codes and see what comes back. ASR is very finicky and not good about telling you what's really ailing it.
It's a reman. Depending on the test results I may send it off for a check/replacement. I've heard of several issues with rebuilt actuators being bad. Hopefully I will have time to look further into this tomorrow.
Linear Mode
