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need ecu 1997 200 efi mercury
#13946675
04/04/21 12:07 PM
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Joined: Nov 2012
Posts: 43
rchampion202
OP
Outdoorsman
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OP
Outdoorsman
Joined: Nov 2012
Posts: 43 |
mine has a glitch it will lose power to fuel pump every now and then can tap on ecu and in will work
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Re: need ecu 1997 200 efi mercury
[Re: rchampion202]
#13947648
04/05/21 03:38 AM
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Joined: Nov 2006
Posts: 2,848
TLW
Extreme Angler
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Extreme Angler
Joined: Nov 2006
Posts: 2,848 |
if its JUST tha pump deal you can by-pass tha pump driver circuit... a good ecu will be hard ta find.
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Re: need ecu 1997 200 efi mercury
[Re: rchampion202]
#13947755
04/05/21 12:17 PM
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Joined: Nov 2012
Posts: 43
rchampion202
OP
Outdoorsman
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OP
Outdoorsman
Joined: Nov 2012
Posts: 43 |
i was told you could put a wire from a on key hot on power block to pump hot and another ground and make it work just make sure to keep key off when not running motor is this rite
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Re: need ecu 1997 200 efi mercury
[Re: rchampion202]
#13948003
04/05/21 03:20 PM
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Joined: Nov 2006
Posts: 2,848
TLW
Extreme Angler
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Extreme Angler
Joined: Nov 2006
Posts: 2,848 |
disconnect both wires at pump and tape 'em up.. find any purple on tha motor.. should be one on starboard side.. maybe ona a plastic term block.. thats a "switched hot" tha will go ta positive term on pump.. ground/neg can go anywhere on tha block.. i always used a relay ta do this but there are lots out there without out a relay.. that keeps some of tha load off tha purple.. up ta you...
Last edited by TLW; 04/05/21 10:47 PM.
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Re: need ecu 1997 200 efi mercury
[Re: rchampion202]
#13955919
04/11/21 05:23 PM
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Joined: Nov 2012
Posts: 43
rchampion202
OP
Outdoorsman
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OP
Outdoorsman
Joined: Nov 2012
Posts: 43 |
what type and kind of relay thank so very much been at fork last 5 days had to take cover off at least twice a day to tap on ecu to get pump to start again
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Re: need ecu 1997 200 efi mercury
[Re: rchampion202]
#13961024
04/15/21 01:13 PM
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Joined: Oct 2004
Posts: 1,537
Cmack
Extreme Angler
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Extreme Angler
Joined: Oct 2004
Posts: 1,537 |
The fuel pump is constantly hot, ecu provides a ground to initiate the pump. I ran a ground wire with a waterproof toggle switch to the dash and those times that the ecu "forgets" to turn the pump on, I simply flip the switch and bingo. Normally I can flip the switch back off and it'll continue to run. Only issue if that you must remember to turn the toggle switch off when you shut it down because the pump will continue to run. Once you take the ecu out of the loop the pump will no longer cycle off when the required pressure is reached or the key is turned off. I have run this set up for 3 years now with zero issues.
Last edited by Cmack; 04/15/21 01:16 PM.
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Re: need ecu 1997 200 efi mercury
[Re: rchampion202]
#13961080
04/15/21 01:42 PM
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Joined: Jul 2010
Posts: 1,349
boatman025
Extreme Angler
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Extreme Angler
Joined: Jul 2010
Posts: 1,349 |
Send it to CDI, they can check it out for you
Hughes Marine 3855 Osage Lane Wylie ,Texas
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