SBC TPI 0411 24X conversioin

[evilstuie]

You are WRONG on the being able to change the firing order in the tune. It is there plain as day in both HP Tuners and TunerCats OBDII. It is in the diagnostic tab and tells the PCM in what order the cylinders fire for misfire monitoring and cylinder specific DTCs.

Oh ok. I've been using EFI Live and TunerPro up to this point and they never had anything to change the firing order. As I said HP tuners is still on its way to me so I haven't had a play around yet.

Regardless I did it the long way and repinned everything.

Is it possible the PCM needs the CASE relearn procedure. From what I remember reading it is supposed to sync the cam and crank sensors yes? But only works if they're already within 2degrees?

[dave w]

My apologies, I thought the topic was SBC 24x '0411. It appears the thread has wondered to the SBC 4x '0411?

I have experience with the SBC 4x '0411 conversion. I use the FACTORY 2002 Express Van L31 SBC 4x '0411 wiring diagrams, FACTORY L31 Cam / Crank sensors and the FACTORY Ignition Coil / Module on the systems I've worked with. It's a good parts combination / foundation to use for the SBC 4x '0411 conversion. The SBC 4x "0411 initial cam / crank alignment MUST BE 100% "SPOT ON", or "HEADACHES" will result. I use the 2002 Express Van Flash, OS 12212156 with the SBC 4x '0411 conversion.

My daily driver is a 1999 S10 / upgraded with a Stock L31 / using the EFI Connection 24x crank trigger system. I'm using the FACTORY 2002 LM7 wiring diagram, modified for the SBC 24x system. I often use my daily driver to "Test" an '0411 PCM. When testing an '0411, I use the same flash the daily driver '0411 has with the CASE disabled in the "Test" flash. I haven't noticed any drive-ability issues with the CASE disabled flash. I'm using a "EXTENSIVELY" modified Drive by Cable LM7 5.3 liter OS 12212156 Flash for my SBC 24x conversion.

dave w