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Plug N Play EMS?

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Old 06-01-08, 05:58 PM
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Plug N Play EMS?

Is there any EMS that I can plug directly into the factory harness connections? An adapter maybe?
Old 06-02-08, 10:22 PM
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The Wolf EMS computers can plug into the stock wiring harness (mostly), and Microtech EMS computers can use the stock sensors. AEM used to have a plug and play EMS for Mazdas, but I have not seen them advertise it lately so they may have dropped it from their line. Anyway, while it is nice to have this capability, I don't really like it myself because the stock wiring is old and unreliable, the stock sensors are expensive, and the tuning is the difficult/expensive part anyway. It is a lot easier to troubleshoot an EMS with a good wiring harness and new sensors vs. one hooked up to crusty old wiring and half-dead sensors.

If you are trying to save time and/or money, I think it is just better to pay a professional to install and tune the EMS. While it may seem like you could save money otherwise, when you add up the extra time it would take you, as well the fact that you have a much better chance of ruining your expensive engine and very little chance of tuning it properly, you are better off just working overtime at your regular job (or a side job) and paying somebody who knows what they are doing. You can spend your time making something less critical (CAI, interior parts, gauges, etc.) if you just like tinkering.
Old 06-02-08, 11:11 PM
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Well, I believe my harness is ok, but it is nice to have that piece of mind.

I rebuilt my motor, so I think that I can handle installing an EMS. Like you said this is an issue of time/money.

A friend of mine installed a Microtech, and it took him a while to figure it out, but seems to be working nicely now.

I know that I can sell my ECU, MAF, pressure sensor, harness, etc etc and recover some of the money spent on the EMS.

I will probably end up buying a used EMS and Wideband o2/controller. Just thought that there might be an easier way.

What's the details on the Rtek coming out for S5 TII? Is this basically a modified ECU, or is it a whole different setup.

One reason why I want to do this is because I have a full emmissions delete, and every time the car starts to boost the check engine light comes on and it goes into limp mode. Runs good and strong until I decel or am at a light then it bogs down, and backfires (like it's overfueling), until I restart. If I drive easy it usually stays off, for about 15 minutes anyways. If I go into boost it comes on immediately.

Getting codes for OMP, O2, solenoids, and a coil code. I assume most of it is because of the emissions delete, the factory ECU is just wiggin out on me. I know that a standalone can fix these issues.
Old 06-23-08, 10:54 AM
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Exclamation maplestoryer.com

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Old 07-06-08, 10:45 PM
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Originally Posted by T24U
Is there any EMS that I can plug directly into the factory harness connections? An adapter maybe?
You can try the Haltech E8 with the S5 patch harness , installation should take you 5 minutes.
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