Starting to look into LS motors for repower time. Who's sensor did you use and which aftermarket ECU?

All of them are the same Continental sensor. I do LS stuff every day in the automotive side for last 15 years thats all I do. Im using OEM ecu with the flex fuel capability for two reasons - In that time frame after thousands of cars, Ive had 3 total bad oem ECUs. Aftermarket ECUs while being less than 10% what I deal with... more like 10-20 ECUs that needed repair or replacement. Not a super high fail rate with them, but still exponentially higher than the OEM test stuff.

For reliability on a boat I personally wouldnt consider anything but unless spending huge dollars on a super high end build possibly, but almost everything 99% of people do with them I can do with this stock ECU anyway. And if you did have a failure, for $150 you could have a spare new on board flashed with same tune and ready to go on the slight chance it did happen, plus you have the diagnostic capability for the rest of the harness/engine that the OEMs built into it

Sorry I thought you said "aftermarket ECU" changes timing etc. As for tuning stock, what software do you use and where can you get it? What BUSS system is GM using now?

No, we have even been able to retrofit this capability into the older Gen3 ECUs that we usually use doing swaps because they can support both cable drive and drive bby wire throttle systems unlike any of the 06-newer ECUs

HPTuners, EFILive, SCT, old LS1 Edit and probably a few other software suites are available to interface with the OEM stuff. Id say the HPTuner is the most comprehensive and is what I use today, when I started with these things NONE of those were available or even a thought

I'm really liking what I'm reading here. I have a 408ci LS2 in my Checkmate that I carb'd just for simplicity. However now I am preparing to go EFI over next winter when I do a head swap. I always thought I would have to spend $2k on something like a Holley Dominator EFI set up. Now that I know it has become easier to use a stock ECU, I might have to go that route. GrannySShifting and Kidturbo, I might have to pick your brains a little once I go down this road if that's ok?

Has anyone made a convertor for the gauges to read on a NEMA 2000 bus yet?

I run the GM sensor, not sure who makes it. When I bought it they were the only ones selling it, now there are a few different brands to pick from.

I run an Autronic ECU. It is a very capable unit. I'm very happy with it.

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Me :-) Go to top ^^

Actually how I stumbled onto the oil temp pinout difference between models while mapping all the gauges to N2k for the LS9. I have to agree that unless your going 1000hp plus, the E38, E67 or even E92 GDI maps adjustable with EFIlive or HPT will cover everything. Cost of a used ECU at bone yard, $30-$50...

Ive made 1000-1200 on a few with the older red/blue and blue/green connector PCMs... on stock longblocks to boot!