ECM And Ignition Module Availability/ replacement

[XfireZ51]

Originally Posted by spork2367

Couple things to clarify. DIYAutotune isn't Megasquirt. They are an authorized manufacturer/distributor. I find it hard to believe that doing 16 injectors with our DIS is easier than simply adding a crank sensor to an LT1...

What solution has =Jeff= implemented?

I don’t believe I said that. What I said is that there would be no need to add a crank sensor since we already have one while the LT1 does not. That reduces things from a hardware cost standpoint. Plus the LT5 has a cam signal which TH would also use.
Having said that the software for a 411 works fine for an LT1/LT4, but would require additional programming for routines managing turning secondaries on and off (not necessarily difficult since it just provides a ground for the secondary relays) but the Port Throttle Open VE and SA tables would need to be added.
TH would require either repinning or replacing the LT5 engine harness with connectors that are the same as the LT1/4 connectors. I’ve repinned harnesses before. A bit tedious but I’d do it for a solution like this. And then there’s the task of “translating” the LT5 calibration into the LSx OBD2 parameters.
An initial cal could be created for stock, but with modified motors your on ur own. And as far as I know TH comms w the CCM is only supported for 94-96 LT1/4, not earlier L98 of which the LT5 is a derivative.

And yes I know DIY is a distributor of MegaSquirt.

Steve,

Would love to see what CnP would do for LT5 particularly modified ones.