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Engine Protection dependent on afr, EGT etc.

Link G4 Plus Software Tutorial

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Hi,

I already use IAT and ECT related ignition retard and rev limiter with the tables given by Link for engine protection. I think there are some possibilities to usw AFR error or high egt as indicator for protection measures (reduce boost, fuel cut, retard etc.). But unfortunately I have no clue how to set it up. Is there a way to define new and dependent tables for those features?

BR

Alex

Hi Alex, yes you can set up just about any parameters you want for engine protection using the two GP limit tables. We did a webinar covering a few options for engine protection but you can adapt the strategy to just about any input you're measuring in the ECU. Check it out here: https://www.hpacademy.com/previous-webinars/036-features-that-can-protect-your-engine-with-the-link-g4-plus/

I have a Link G4+ Xtreme running on a 6 cylinder two stroke outboard motor. I have an EGT in each cylinder and would like to setup engine protection by adding fuel to an individual cylinder based on that cylinder's EGT reading exceeding 1300 degrees Fahrenheit. I have purchased the overall G4+ software tutorial and have watched any/all Link focused webinars that might touch on this, but can't find what I'm looking for. Is there a way to do that on a cylinder by cylinder basis? Thank you.

Hi Sam,

Turn on "Individual Cyl Fuel Correction", set it to table mode, then set up the tables with EGT on an axis (you can export/import the table to save setting it up six times). Here is an example that adds 5% fuel at 1300F, then increasing if temp still climbs:

Thanks. I was there, but had opened 3D table. Had changed vertical axis to EGT but got stuck there. This looks simpler. Can you also retard timing or is it one or the other?

You can do the same with timing by turning on individual cyl trim in the ignition folder.

I should have taken a minute to look at the software. I don’t have my computer with me at the moment. Thanks again.

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