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Microtech LTX-8 Help - No Leading Spark.. No Start

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Microtech LTX-8 Help - No Leading Spark.. No Start

Old 04-13-10, 04:23 PM
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LTX-8 Help - No Leading Spark.. No Start

I have a Fd and I just installed a LT-8X. I am using the stock trailing coils and some LS2 coils. The cart wont start. I did the system test using the screen 31 test and all the injectors are clicking..the stock trailing coils are firing but the LS2s on the leading wont. I am also getting a RPM and REF errors. I used foil to shield the splices in CAS wiring. I wired up the LS2 coils by grounding the brown and black wires, putting ign/(straight power for this testing) to the pink ones on the end and hooking up the other one to the microtech leading output wires. What am I doing wrong? And I dont think I am getting fuel from the injectors when cranking to start.

I also found funny that when i was wiring up the cas wires (using the FD stock wires) the microtech wiring diagram seemed to have to colours of the wires for the grey and white connectors in reverse. As in the white plug on the FD stock wiring has a Green wire which based on the Microtech diagram would connect to the red wire or the microtech loom. And similarly the grey plug on the fd wiring harness have a red wire which would now attach the green wire on the microtech loom.
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Old 04-13-10, 04:24 PM
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Oh Btw the Ecu has a 3bar conversion with the external Map sensor.. I dont know if that has any effect on the situation
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Old 04-14-10, 07:50 AM
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Is the ltx8 configured for an FD?

**** the ls2 coils off and use mazda trailing coils all round.

Wire up the FD crank sensors as per the mazda diagram. It sounds wrong but its right.
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Old 04-14-10, 02:27 PM
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How will I know if ti was configured for the FD rather than the FC? It came out a 3rd gen car body...but i noticed the prewired cas was single white plug with all four wires going to it, which is different from the FD, so maybe its was FC setup in a FD body
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Old 04-14-10, 07:10 PM
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When you put the laptop or handset on it it will say in the software if its for ser6 or not.


If it dosnt say mazser6 then its not for an FD and its never going to work and requires a reprogram.

Pm me if this is the case and i can have it done for you.
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Old 04-16-10, 08:23 PM
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I only see "13B V1.0" on the screen.. Not FD?
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