502 MPI Alarm System Questions??
#1
502 MPI Alarm System Questions??
Bought 1999 Fountain with 502mpi mags. Livorsi gauges were installed and the alarm system was not hooked up so I have to constantly look at my gauges to make sure everything is okay. I noticed this after buying...
So my question is, does the alarm system for the high water temperature and low oil pressure read from the old stock gauges that had warning lights or does it read from the ECM?
I've done a search and cannot come to a conclusion. I'm new to these motors so I apologize if I'm sounding dumb.
So my question is, does the alarm system for the high water temperature and low oil pressure read from the old stock gauges that had warning lights or does it read from the ECM?
I've done a search and cannot come to a conclusion. I'm new to these motors so I apologize if I'm sounding dumb.
#3
My my alarm lights and buzzer wires are cut. Can't find what use to connect them so I'll run a new one if I have to. My guess is that it was alarming all the time and they took the easy way out instead of fixing the problem.
#4
Platinum Member
Platinum Member
iTrader: (6)
this should help
#6
Charter Member # 55
Charter Member
Your previous guage warning lights were part of the guage. The warning lights go off based on the guage reading only.
The Merc alarm wires are usually Tan with a Blue stripe. The diagram above shows Tan with White stripe.
That is the engine harness above. It connects to dash harness via the 10 pin Cannon Plug.
The Merc alarm wires are usually Tan with a Blue stripe. The diagram above shows Tan with White stripe.
That is the engine harness above. It connects to dash harness via the 10 pin Cannon Plug.
#7
Your previous guage warning lights were part of the guage. The warning lights go off based on the guage reading only.
The Merc alarm wires are usually Tan with a Blue stripe. The diagram above shows Tan with White stripe.
That is the engine harness above. It connects to dash harness via the 10 pin Cannon Plug.
The Merc alarm wires are usually Tan with a Blue stripe. The diagram above shows Tan with White stripe.
That is the engine harness above. It connects to dash harness via the 10 pin Cannon Plug.
#8
Platinum Member
Platinum Member
iTrader: (6)
low oil pressure sender to the ECM ( most install where the oil pressure sender for the dash gauge is ) and drive oil level