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Problem With Microtech

mad082

By mad082,
in Engines & Forced Induction

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mad082 Grand Master

mad082

Posted
Posted

ok i'm posting this up for a mate.

he has just wired a microtech (not sure on number but it is a LT, not LTX) into his ceffy (turbo rb25) and isn't getting spark... sort of. when it does all the self test it comes up fine. now i'll start the story from the start....

when he first bought it it was wired up for wasted spark but when he hooked it up it fried the drivers in the ecu. so he sent it away to microtech and got it fixed and was supposedly bench tested and worked fine. he has now got it back and wired up for normal spark. when he uses th stock s2 coils he gets no spark. when he uses rb20 coils with an ignitor he gets no spark, but when he uses rb20 coils and no ignitor he gets spark (he only has 1 rb20 coil though). he has gone over the wiring with a multimeter and test light and everything is getting enough voltage to fire but it won't. anyone got any ideas on why it won't run with the s2 coils. he was under the impression that the LTX had a built in ignitor but the LT didn't.

pretty much been over everything we could think of so throw out any ideas you have

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mad082 Grand Master

mad082

Posted
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Posted

ok just double checked the model number. it's a LT12S. he also rang up a tuning company this morning to double check the compatiability of using the stock coils and they agreed it should work fine.

he has wired up and tuned a few microtechs in the past so it isn't a lack of knowledge issue.

The Dan Grand Master

The Dan

Posted
Posted
ok just double checked the model number. it's a LT12S. he also rang up a tuning company this morning to double check the compatiability of using the stock coils and they agreed it should work fine.

he has wired up and tuned a few microtechs in the past so it isn't a lack of knowledge issue.

RB20 (S1 33 coils) and S2 33 coils are wired differently.

Can you please post up a MSPAINT wiring diagram of how they are wired ie. which wires (colours or output numbers from ECU) are going to which wires on the coilpack

mad082 Grand Master

mad082

Posted
  • Author
Posted

yeah he has emailed microtechefi.com (and not microtech-efi.com which is actually mazfix which i think was who fixed the board last time) and has sent the ecu away to them. they suspect the ecu may have had a LTX board put in it and not had the sticker changed when it was fixed last time because of the fact that it will spark without an ignitor but not with an ignitor.

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