Quote:
Originally Posted by Jessek  On one of my other posts I asked a question about what else I could have to fix to make my car run again...here is the list of the things I have done...
EZL w/new coils
MAF
Throttle body actuator
Plugs
Wires
Fuel pump relay
I went today because we took the performance chip out of the car and replaced the original OEM chip but the car still turns over but then it dies right after it starts. The question he asked today is what makes the injectors click? He cant figure out why it wont run and he is at the end of his whits...I was there about 4 weeks ago...now it has been 6 weeks with no car  . I dont know if anyone here has done all this work before, or even if there is a person on here that is in Boston that knows about these cars that might want to make some extra $$ to come take a look at it. Any more advice is very appreciated because I keep bringing it back to him and he checks them out. Thanks in advance  |
With the above components replaced, there is alot of room for possible errors. When it dies... is it being put into gear (as in transmission)? Or does it not idle at all? Was the engine running prior to the parts replaced?
If anyone has replaced the Chip..... were the proper static/ stray voltage issues considered when reinstalling the chip? Doesn't take but a very minute voltage to damage that eprom.... I would back up and start here and move through everything.... The EZL does alot of math and it does not take much to foul up a checksum calculation and everything is fouled up from there.
Please reverify the above components are all functional and properly in place. The ignition module has a critical vacuum source connected to lower intake manifold.... please reverify this is in place.
Also, please ask the Tech to please recheck the ETA (Electronic Throttle Actuator) is still entirely reconnected. The linkage has a tendency to be jammed and appear fine, yet this will NOT ALLOW a proper balance when first started and thus the engine will quickly die after starting. The return spring is easily mis-installed and will appear fine, yet will not function properly and this will impact the idle and cause the condition described. Yes, there are alot of issues that will cause the area of opportunity you describe.... but all one has to do is reverify everything that will cause this condition.
Again, as I have said over and over, hold them accountable and ask for some documentation of what they have done, where is a check-list showing what they have rechecked and what is still under the microscope?
If they are valid Mercedes technicians..... then they will have either the WIS, Star or some other Diagnostic assist software... if not..... well you know the answer to that one and then the issue is probably within the install of the above mentioned components.....
Recheck your ETA and the control of your Injection/Ignition system (EZL) all via the 38 pin diagnostic connector and Mercedes Software
ALL valid Mercedes Technicians/ Mechanix's will have access too!
If the engine dies when first placed in the "drive position".. Ask your Mechanic to humor us and double check the Transmission control harness connector for a good connection and NO accumulation of debris or moisture..
As mentioned prior, have the engine checked for any coded information. If they are unable to interpret..... No Problem... get us the information and we will help you get down the Diagnostic Trail to Mercedes Proper Operation. I/ We Promise!
Dietrich Folker and Robert Ohlings
Linear Mode
