STR Prep - ECU and Tuning Discusson
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Joined: Jul 2006
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you could probably setup a partial parallel sub-harness, where you could control the engine directly with the haltech, and use the stock ecu to run the rest of the crap. Remember, all you have to do is be able to plug something in, and have it talk to an ecu.
Joined: Apr 2003
Posts: 400
Likes: 2
From: weston
Marc,
If anyone is interested the haltech and the aem can be made Str legal. The aem I had was Str legal. In fact I still have the harness to make it work if anyone wants a real tuning solution
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If anyone is interested the haltech and the aem can be made Str legal. The aem I had was Str legal. In fact I still have the harness to make it work if anyone wants a real tuning solution
Sent from my SAMSUNG-SGH-I747 using Tapatalk 4
Joined: Apr 2003
Posts: 400
Likes: 2
From: weston
This is something that tuners have done for years. The create a piggyback harness for the standalone that allows the OEM ecu to do all things like immobilizer, emissions, obd etc and then allow the standalone to do all the fuel/ignitoon/timing etc. This is how people run standalone where emissions testing is still done. This is why I thought the rule change to piggyback only was ridiculous. Like I said if anyone want to make good power you can use an aem and use this method. I still have the harness if anyone is interested and can put you in touch with the tuner that can make it all work properly for you.. My 04 with stock header, knn intake and Str exhaust made 235/160 on a dynojet
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Registered User
Joined: Apr 2011
Posts: 49
Likes: 1
From: Boulder, CO
I've been following this...
Few thoughts on the Haltech side. If it exposes some form of interface (a la, OBD data words over USB), wouldn't it be possible to use a microcontroller or something as an intermediary between the factory OBD2 port and the Haltech datawords? OBD is a pretty simple standard, as far as all of the requests it's required to fulfill. It's the manufacturer specific ones (as well as additional functionality) that would be the tricky part.
Seems to me like it'd be pretty straightforward to do this... Anyone had similar thoughts?
Few thoughts on the Haltech side. If it exposes some form of interface (a la, OBD data words over USB), wouldn't it be possible to use a microcontroller or something as an intermediary between the factory OBD2 port and the Haltech datawords? OBD is a pretty simple standard, as far as all of the requests it's required to fulfill. It's the manufacturer specific ones (as well as additional functionality) that would be the tricky part.
Seems to me like it'd be pretty straightforward to do this... Anyone had similar thoughts?