Date registered: Oct 2006
Vehicle: 95" W124/ E220 MasterPiece and 01" W210/ E200 KOMPRESSER
Location: Taiwan, East Asia Pacific
Mentioned: 3 Post(s)
Quoted: 48 Post(s)
Check the power supply to your coil pack and verify.
These three coil packs cables are jointly connected to the left wing arch connector under a black plastic housing.
When you turn your key to position 2, you could measure a B+ voltage.
Make sure your engine have the power supply first.
Then, make sure your ECM could send out proper "spark signal" via ground.
When you crank your engine, you could check out its continuity between the negative side of your three COIL connectors
for 1/6, 2/5, 3/4 cylinder sparks and the car chassis ground.
ECM must send out ground signals to trigger your respective coils.
Without a continuity between them, you have no sparks.
Last I ever came upon a really rare case, that would be your car might come with a ME ECU for a HFM engine.
HFM and ME systems at this era have the same connectors, but the coil driver signals for its specific cylinders are not the same.
Thus you have no start issue.
Last edited by jimmyhsiung; 06-10-2019 at 08:59 PM.
Reason: adding wire graph