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ContinuousWave: Small Boat Electrical
NMEA 2000 Lowrance to E-TEC
|Author||Topic: NMEA 2000 Lowrance to E-TEC|
posted 01-01-2008 11:30 PM ET (US)
I am looking for the actual picture of the connection, plug, or port [for the connection to a NMEA-2000 network on an Evinrude E-TEC engine]. I know that the [NMEA-2000 connection point originates from] the EMM and not [from] the diagnostics port that the dealer uses.
Also does anyone have the wiring diagram show what wire goes to the dianostics connection vs the NMEA 2000 port?
It would be sweet to have all data to my GPS from my 90 E-TEC.
[Issued a sort of provocative challenge to respondents, which seemed completely unnecessary.--jimh]
posted 01-02-2008 01:02 AM ET (US)
The NMEA 2000 data will only work with a 2008 90-HP E-TEC. The 2007 and earlier 90-HP models do not have that capability.
The data connector is a flat 4-pin near the engine EMM.
You can browse the I-Command operation and installation booklets available on this website for more info and illustrations.
posted 01-02-2008 10:17 AM ET (US)
Seahorse--thanks for the reply, Evinrude had to add in the NMEA2000 this year, dang. Does the 4 pin flat plug come right off the EMM? Or a port off the EMM?
posted 01-02-2008 06:46 PM ET (US)
The NMEA 2000 connector is near the EMM and is part of the engine wiring harness on compatable engines.
The laptop diagnostic fitting is a 3 wire triangular shaped connector with red, black, and white wires.
posted 01-03-2008 09:57 AM ET (US)
[M]aybe [I] need to restate the question: besides the motor having to be NMEA 2000 compatable, where exactly do the four wires come off?
I know that it is a 4-wire port, flat, near the EMM and only 115 and up and now the 2008 90 E-TEC's have the NMEA 2000 option.
How does the new 2008 90 ETEC use the NMEA 2000 as compared to the older 90 E-TEC?. Is the NMEA 2000 port an easy add-on? Is there more to it? For example, a special EMM port, or harness? Can you splice a harness or buy a new one to have this option?
posted 01-03-2008 10:08 AM ET (US)
The 2008 90-HP E-TEC has completely different electronics inside the EMM that would be damaged if installed on a 2007 or earlier model, or vice-versa.
The NMEA 2000 circuitry is inside the 2008 EMM and the NMEA 2000 connector is attached to the wiring harness on the motor. The wiring diagrams and EMM pin-outs are completely different than the 2007 and earlier motors.
That is why NMEA 2000 cannot be "backfitted" to earlier inline engines.
Did I mention that the systems, wiring, and EMM's are completely different and not interchangable with earlier inline motors?
posted 01-03-2008 10:18 AM ET (US)
seahorse--thanks for clearing that up about the EMM's.
posted 01-03-2008 10:27 AM ET (US)
seahorse--just to add to the discussion, pinouts on an ECU are not different, but are in different locations. It keeps most of the people away from playing with the EMM/ECU. EFI car engine swapping. If the EMM is completely different as you stated, then, ok, there is absolutely no way to retrofit.
[Asks that] the pin outs of the 2008 and 2007 90-HP E-TEC EMM and wiring harness [should be scanned and sent] to me.
posted 01-03-2008 11:45 AM ET (US)
The output voltages and frequencies are different as well as the wiring in the 2008 EMM.
The 2008 manuals are not out yet for the color wiring diagrams, but you can go to your friendly dealer and ask him to show you the 2007 service manual for voltage checks and wiring locations, and also read the warnings in the dealer service bulletins about swapping EMMs between '07 and '08 models.
Also your dealer will soon have the '08 E-TEC update manual that will explain even more about the changes in test procedures and the new features of the new 90hp.
posted 02-27-2008 02:10 PM ET (US)
Have you guys checked out the parts catalog on evinrude.com. Apparently there's not a big difference between the wiring at least. I ordered the service manual for both 2007 and 2008 to study the differences.
I tried to see if the motors have different EMM's but the part number for the EMM is only listed on the 2008 modell;
586970 = EMM
posted 02-27-2008 04:51 PM ET (US)
posted 02-27-2008 11:46 PM ET (US)
On its motors which have NMEA-2000 network ports, Evinrude has traditionally used a connector of its own choosing, usually an [AmpSeal] connector, instead of the official NMEA-2000 connector.
One troubling thing about NMEA-2000 was the connectors specified in the standard, and many vendors did not use them. LOWRANCE was the most prominent and largest selling vendor to use a non-standard connector. Finally Lowrance has settled on a RED connector which is now being treated as an acceptable NMEA-2000 connector.
To connect an Evinrude E-TEC engine with NMEA-2000 to the network you just have to buy (or fabricate) a drop cable which can mate with the [AmpSeal] connector on the engine on one end and with your network T-port on the other end. If you are using Lowrance, you can order the necessary adapter cable from them.
Try this link to see the options available:
posted 02-28-2008 04:14 AM ET (US)
The harnesses are different, but not very. It would be easy to modify a non-nmea one if the nmea output exists on the "old" EMM. I doubt it does though.
posted 02-28-2008 09:58 PM ET (US)
I cannot imagine any way in which you could home brew a modification for an E-TEC 90-HP to convert an engine made prior to the 2008 model year to have an NMEA-2000 network port. It is just not anything practical for an experimenter to accomplish. If you really want to add NMEA-2000 to your E-TEC, sell your non-2008 engine and buy a 2008 model. That is probably the most expedient and also the cheapest way.
The NMEA-2000 network port is provided from the Engine Management Module (EMM) of the E-TEC engines which have that facility.
posted 05-06-2008 03:08 AM ET (US)
2008 EMM connector:
Pre-2008 (2007) EMM connector:
So the differences are not huge. But the software is probably not in place to provide NMEA output. Bet it could easily be accomplished by Evinrude's engineers.
posted 05-09-2008 12:24 AM ET (US)
NICE! its very similar to an EFI car harness, sometimes you need to move pins to be able to get the ecu/emm from a different year car to run an older or new engine.
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