2001 Mercruiser 5.7 EFI/TBI Scan Tool

[ejput]

I saw this on another forum at some point. Trying to determine if if the connector I have is capable as a scanner hook up. Additionally, someone posted a cheaper alternative to buying the actual scan tool.

 

[bruceb58]

Not sure what you can actually get off the ECU scanning that old of a motor. You can call Rinda and ask them.

I own the Rinda Diacam. Well worth the money for my use case.

Rinda Technologies Inc. Marine and Industrial Engine Diagnostic Tools

The Official Site of Rinda Technologies, Inc. Designing innovative engine diagnostic tools and software for over 20 Years.

www.rinda.com

 

[ejput]

I'm not sure as well...hoping something!! If not, I'll go about fixing it the old fashioned way.

 

[Lou C]

That diagram reminds me of what you had to do to pull codes from the EFI system on a late 80s Toyota....paper clip trick and turn on ignition, the check engine light would blink out a code, that was what you got!

 

[alldodge]

That is a MEFI (1 to 4) connector and while there are not many codes can be read, if there is one it can be done as your pic shows. Use a 12V resistor LED or a voltmeter with a tone function

 

[ejput]

That is a MEFI (1 to 4) connector and while there are not many codes can be read, if there is one it can be done as your pic shows. Use a 12V resistor LED or a voltmeter with a tone function

That helps a lot!! Thanks

 

[Fun Times]

Like mentioned above, if you're just wanting to read trouble fault codes on the MEFI ECM's only type then the following way using a multimeter is a safe and easy effective way to do it...

If you are wanting more viewable data then maybe checkout a MR500 Marine Scanner for your engine manufacturer model on both Ebay and Amazon as it may be of some help too though seemingly pricey as well.

 

[ejput]

Like mentioned above, if you're just wanting to read trouble fault codes on the MEFI ECM's only type then the following way using a multimeter is a safe and easy effective way to do it...

If you are wanting more viewable data then maybe checkout a MR500 Marine Scanner for your engine manufacturer model on both Ebay and Amazon as it may be of some help too though seemingly pricey as well.

Fantastic tutorial, can't wait to try it out!!
Thanks!

 

[ejput]

I did see this on another post and would like to know if I have anything to worry about by using the paperclip? It looks like I can read codes without it? If it won't harm any components, I'll use it:
.
"if you take and stick an LED in the port on the engine it does the same thing. And then the paper clip puts it in "timing mode" verify that your boat does not have MEFI 5. It shouldn't in 2002 but if it does you'll destroy the computer."
Also:
Without the paperclip it will blink codes, with the paperclip it does timing and then lets you reset the codes by going full throttle in neutral.

So the tool is literally a LED and a switch wired in so that switch "off" reads codes, switch "on" is the paperclip... and that is the entirety of the circuit.

 

[alldodge]

Don't know of any Merc which used the MEFI 5, it was only used Indmar and VP

 

[ejput]

Don't know of any Merc which used the MEFI 5, it was only used Indmar and VP

great, I'll use the clip