@@mercedeskeI’ve got a problem. I drained old fuel & put in 10 gals of new. This morning I made two pigtails for the positive and negative terminals for the fuel pumps. Then I rerouted the fuel line on distributor to a clear plastic 5 gal container. I then jumped the pumps. They come on and I hear them, but nothing comes out. I thought that maybe my power supply didn’t have the balls so I used a battery and I get the same results. Am I missing something? The only thing I can think of is a clogged line or filter. I might have to cancel Saturday and at least change the fuel filter by the pumps.
Hey. Thanks for these helpful videos! Do you have any idea what could be the problem with my Merc. When I connect the working microswitch I am unable to run the duty cycle as I get 12ish volts from the 3rd pin of x11.When i remove the microswitch connector I get normal 6-7 volts from the 3rd pin.
Hi man, thanks for making these vids. I'm new to mercedes and they are a great help for me trying to figure out how it work. I recently bought a w126 with the m103 to start my mercedes adventure. It sat for a couple months in a collector's garage, but we were able to jump it and it seemed to run fine. I drove it home and a couple more times throughout the day. Then the next morning I try to start it and it barely runs, eventually it idles, but very roughly. I park it 50 metres away in a safe spot to inspect, but since then it hasn't ran anymore. Cranks well but won't fire up. I'm afraid I'm missing something blatantly obvious at this point! Could you point me in the right direction? Thanks!! I tried the following things: Replaced the battery Unplugged the aftermarket alarm system Changed spark plugs, wires. Checked the spark and it's strong Replaced the fuel pump (Bosch) No noise/beep when turning the ignition (fuel doesn't prime?) Also can't hear the fuel pump running when ignition on with ear next to the pump Fuel pump runs perfectly when putting external power directly to it Checked the fuel pump relay on the bench and also works, can hear it click and checked continuity Tried bridging the fuel pump relay multipoe times, doesn't do anything OVP relay clicks and checked on bench. Fuse was good, also replaced it to be sure Checked fuses for continuity, all good if I haven't missed any I'm starting to suspect something is wrong with the wiring/connections somewhere between the back of the car (fuel pump) and the relay in the front. I started to tear back the carpet. In the booth everything looks fine and going to the front too. In the passenger side foot well I can see a pin connection. My next plan is to measure continuity from there to the pump and from there to the relay. This is quite a job if I have to take out the dash, so I'm wondering if I'm missing something here that I haven't tried! s!
Wow Thank you for all this xlnt detailed video and the other ones. I am restoring 1988 w126 M103 driving me crazy getting 13.80 volt at the x11 not sure why . Any advice will be greatly apricated. Almost all the components are new because it needed it except for the EHA and idle control tested okay.
@mercedeske thank you for the replay. Yes almost all the components in this video are new except for EHA and idle control is new on my car . Iam suspecting something with the wiring that's not sending the correct signal to the ECU or the X11. Again thank you for these great videos and for helping a lot of people with this complicated system. BTW there is an Iraqi mechanical engineer that invented a mechanical EHA that you can adjusted without removing it.
@@Znyd04 Woooow. What I am going to hear! An adjustable fuel pressure regulator, emulator which helps you not to replace the potentiometer, now this.....
Thank you for the wonderful videos, you are a real professional, does the ezl get a constant 12v or is it wrong because I have a consumption of 0.36A when the car is off?
You always get creative with your videos, dude. But I have a problem for which I could not find a solution. After repairing the OVP, the fuel consumption rate increased significantly. What is the reason, in your opinion? (E200 92 with M102 injectors)
I'm late in responding, sorry. I mention that I have sensors that are still good, but the fuel distributor has sensors that do not work. Can you tell me what sensors it has?@@mercedeske
I'm late in responding, sorry. I mention that I have sensors that are still good, but the fuel distributor has sensors that do not work. Can you tell me what sensors it has?@@mercedeske
@mercedeske I did. Installed these parts 1.Accumilator and new fuel filter 2. Air filter new 3. Entire distributor with throttle body(this fixed long crank to start) 4.Regulator 5.O2 sensor 6.Bosh plugs 4x and wires 7. Distributor rotor and cap What should be the correct consumption in city. I have seen people say about 7 to 8kmpl. That's fair.
Maestro estupendo video pero hecho de menos que no sea en español para aprender con el. Animo desde España
I bookmarked this video! Great information and detail. ❤
👍👍👍Thanks and good luck on saturday. I will be watching the video the next day! Happy Mercedesing!
@@mercedeskeI’ve got a problem. I drained old fuel & put in 10 gals of new. This morning I made two pigtails for the positive and negative terminals for the fuel pumps. Then I rerouted the fuel line on distributor to a clear plastic 5 gal container. I then jumped the pumps. They come on and I hear them, but nothing comes out. I thought that maybe my power supply didn’t have the balls so I used a battery and I get the same results. Am I missing something? The only thing I can think of is a clogged line or filter. I might have to cancel Saturday and at least change the fuel filter by the pumps.
Hey. Thanks for these helpful videos! Do you have any idea what could be the problem with my Merc. When I connect the working microswitch I am unable to run the duty cycle as I get 12ish volts from the 3rd pin of x11.When i remove the microswitch connector I get normal 6-7 volts from the 3rd pin.
Hi man, thanks for making these vids. I'm new to mercedes and they are a great help for me trying to figure out how it work.
I recently bought a w126 with the m103 to start my mercedes adventure. It sat for a couple months in a collector's garage, but we were able to jump it and it seemed to run fine. I drove it home and a couple more times throughout the day. Then the next morning I try to start it and it barely runs, eventually it idles, but very roughly. I park it 50 metres away in a safe spot to inspect, but since then it hasn't ran anymore. Cranks well but won't fire up. I'm afraid I'm missing something blatantly obvious at this point! Could you point me in the right direction? Thanks!!
I tried the following things:
Replaced the battery
Unplugged the aftermarket alarm system
Changed spark plugs, wires. Checked the spark and it's strong
Replaced the fuel pump (Bosch)
No noise/beep when turning the ignition (fuel doesn't prime?)
Also can't hear the fuel pump running when ignition on with ear next to the pump
Fuel pump runs perfectly when putting external power directly to it
Checked the fuel pump relay on the bench and also works, can hear it click and checked continuity
Tried bridging the fuel pump relay multipoe times, doesn't do anything
OVP relay clicks and checked on bench. Fuse was good, also replaced it to be sure
Checked fuses for continuity, all good if I haven't missed any
I'm starting to suspect something is wrong with the wiring/connections somewhere between the back of the car (fuel pump) and the relay in the front. I started to tear back the carpet. In the booth everything looks fine and going to the front too. In the passenger side foot well I can see a pin connection. My next plan is to measure continuity from there to the pump and from there to the relay. This is quite a job if I have to take out the dash, so I'm wondering if I'm missing something here that I haven't tried!
s!
Wow Thank you for all this xlnt detailed video and the other ones.
I am restoring 1988 w126 M103 driving me crazy getting 13.80 volt at the x11 not sure why .
Any advice will be greatly apricated.
Almost all the components are new because it needed it except for the EHA and idle control tested okay.
In order to do the mixture adjustment you need a good potentiometer and the lambda probe. HAve you replaced those?
@mercedeske thank you for the replay. Yes almost all the components in this video are new except for EHA and idle control is new on my car . Iam suspecting something with the wiring that's not sending the correct signal to the ECU or the X11. Again thank you for these great videos and for helping a lot of people with this complicated system.
BTW there is an Iraqi mechanical engineer that invented a mechanical
EHA that you can adjusted without removing it.
@@Znyd04 Woooow. What I am going to hear! An adjustable fuel pressure regulator, emulator which helps you not to replace the potentiometer, now this.....
Thank you for the wonderful videos, you are a real professional, does the ezl get a constant 12v or is it wrong because I have a consumption of 0.36A when the car is off?
Hello and thanks. The EZL has contact 15(ignition ON) and the ground(31). It shouldn't have consumption while the engine is off.
@@mercedeske Thanks for the answer, where could the problem be?
You always get creative with your videos, dude. But I have a problem for which I could not find a solution. After repairing the OVP, the fuel consumption rate increased significantly. What is the reason, in your opinion? (E200 92 with M102 injectors)
Check the sensors, check the mechanical part, wiring...
I'm late in responding, sorry. I mention that I have sensors that are still good, but the fuel distributor has sensors that do not work. Can you tell me what sensors it has?@@mercedeske
I'm late in responding, sorry. I mention that I have sensors that are still good, but the fuel distributor has sensors that do not work. Can you tell me what sensors it has?@@mercedeske
@@W-124s None. It's purely mechanical unit. It has filters inside, no sensors.
@mercedeske OK Thank you
Thank you !!!!
My pleasure, always!
Why does my 230E has bad fuel milage. It does 5kmpl in city.
Have you checked the mechanical part of the system and the sensors?
@mercedeske I did.
Installed these parts
1.Accumilator and new fuel filter
2. Air filter new
3. Entire distributor with throttle body(this fixed long crank to start)
4.Regulator
5.O2 sensor
6.Bosh plugs 4x and wires
7. Distributor rotor and cap
What should be the correct consumption in city. I have seen people say about 7 to 8kmpl. That's fair.
@@hashanjayakody8240 Have you replaced the injectors?
@@mercedeske yes all 4.
The potentiometer?
Maestro este video sería muy bueno en español para poder entenderlo mejor .saludos