How to adjust Bosch KE3 Jetronic fuel mixture?
Mercedes suggests that special tools are required to adjust the mixture on the Bosch KE3-Jetronic (CIS-E) fuel injection, such as is used on the 1988-91 560 series motors. The dedicated shade tree mechanic can do it, but needs to be well-informed first.
What kind of fuel injection does Mercedes use?
Mercedes suggests that special tools are required to adjust the mixture on the Bosch KE3-Jetronic (CIS-E) fuel injection, such as is used on the 1988-91 560 series motors. The dedicated shade tree mechanic cando it, but needs to be well-informed first.
When do you change the Jetronic mixture in a car?
For California cars, starting in 1988: Press the push button switch on test connector X92 (passenger side, between the two firewalls) for two to four seconds. The LED will flash once, indicating no fault code is stored in the system. Now press the switch again for two to four seconds.
What is the lambda on / off ratio for Mercedes Benz?
Lambda on/off ratio, 0 to 13.6 V, 100 Hz. This is not a replica of the output of the oxygen sensor. The “duty cycle” in Mercedes literature refers to the percentage of time this signal is low. Longer duty cycle (lower average voltage) = lean, shorter = rich.
What should the fuel pressure be on a W124?
For W124s running the KE Jetronic fuel delivery system (ie 200e, 230e, 300e etc), the minimum expected pressure from the fuel delivery system is 3.5 bar in order for the injection valves (injectors) to work properly.
How long does it take for KE-Jetronic fuel to leak?
The amount of fuel for each of the sections should be equal to any of the other ones. When the disk is completely lifted, no less than 80 ml of fuel should leak out during 30 seconds. Removing the fuel distributor metering unit is actually not that difficult at all.
Mercedes suggests that special tools are required to adjust the mixture on the Bosch KE3-Jetronic (CIS-E) fuel injection, such as is used on the 1988-91 560 series motors. The dedicated shade tree mechanic can do it, but needs to be well-informed first.
Mercedes suggests that special tools are required to adjust the mixture on the Bosch KE3-Jetronic (CIS-E) fuel injection, such as is used on the 1988-91 560 series motors. The dedicated shade tree mechanic cando it, but needs to be well-informed first.
The amount of fuel for each of the sections should be equal to any of the other ones. When the disk is completely lifted, no less than 80 ml of fuel should leak out during 30 seconds. Removing the fuel distributor metering unit is actually not that difficult at all.
For California cars, starting in 1988: Press the push button switch on test connector X92 (passenger side, between the two firewalls) for two to four seconds. The LED will flash once, indicating no fault code is stored in the system. Now press the switch again for two to four seconds.