Where in the "bleep" is the distributer module wire?

Etzler

Seaman Apprentice
Joined
Jun 8, 2013
Messages
35
This is stupid, but I am at a lost. 2008 350 mag MPI. In the process of cleaning the corrosion off all my wiring harness, somehow, someway, I can't locate the wire that connects to the module in the distributor. I have searched high and low and can't find it. There are the two connectors that go to the coil, but after that I have nothing. Where does that wire that connects to the distributor module join the harnes?
 
Last edited:

achris

More fish than mountain goat
Joined
May 19, 2004
Messages
27,468
The only connection to the 'distributor' (proper name is HVS, 'High Voltage Switch') is the high tension lead from the coil. All the timing and firing of the coil is done in the ECU, with crank angle information coming from the crank angle sensor located in the timing cover at the front of the engine. There is a module in the HVS, but Mercruiser don't use it hence, no plug for it. ;)

Chris....
 

Etzler

Seaman Apprentice
Joined
Jun 8, 2013
Messages
35
The only connection to the 'distributor' (proper name is HVS, 'High Voltage Switch') is the high tension lead from the coil. All the timing and firing of the coil is done in the ECU, with crank angle information coming from the crank angle sensor located in the timing cover at the front of the engine. There is a module in the HVS, but Mercruiser don't use it hence, no plug for it. ;)

Chris....

Well that would explain it. Trying to trouble shoot this engine that was sunk and I thought I was losing my mind. What was this distributor (HVS) used in that used that sensor? Thanks
 

achris

More fish than mountain goat
Joined
May 19, 2004
Messages
27,468
.... What was this distributor (HVS) used in that used that sensor? ...

Some earlier engines used it instead of, or as a supplement to, the timing cover mounted crank angle sensor. It was sometimes refered to as a Cam sensor, based on that it makes a single turn with the cam, not the crank.

BTW, with an engines that's been underwater, I usually toss everything electrical, including the harness. Once water (even fresh) gets into the wires, they have a very limited life, and when they start failing, it can be a nightmare to troubleshoot. I did read the opening paragraph of your 'submerged' thread. 50' down, for 5 days..... Water will have been forced all the way up the wires due to the pressure alone. At that depth, almost 3 atmospheres. :eek: I wouldn't mind betting if you cut any wire, anywhere, it'll be wet.

Chris......
 
Last edited:
Top