Plug and Play ECU
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Driver School Candidate
Joined: Sep 2015
Posts: 7
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From: WA
Haltech $2000 for standalone and adapter harness. Basically what I was saying is why not just use the stock ecu to control what the stock ecu wants?
https://www.haltech.com/product/ht-1...vti-2002-2005/
https://www.haltech.com/product/ht-1...vti-2002-2005/
Thread Starter
Driver School Candidate
Joined: Sep 2015
Posts: 7
Likes: 0
From: WA
The only reason to keep the stock ECU in a high power application is to run the gauges. With this, you don't need it at all, con't need to find space for another ECU box, and it's $400 cheaper than the Haltech. Plus, if you can control the gauges with the new ECU, you can program them to do whatever you want. Change the MPG gauge into a boost gauge. It's a well known system down in Australia and New Zealand. There is a tuner not far from me that uses them in Supra's and RX7's that can tune it, I was hoping to see someone with a Lexus that has installed it and done a write up.
The only reason to keep the stock ECU in a high power application is to run the gauges. With this, you don't need it at all, con't need to find space for another ECU box, and it's $400 cheaper than the Haltech. Plus, if you can control the gauges with the new ECU, you can program them to do whatever you want. Change the MPG gauge into a boost gauge. It's a well known system down in Australia and New Zealand. There is a tuner not far from me that uses them in Supra's and RX7's that can tune it, I was hoping to see someone with a Lexus that has installed it and done a write up.
Heres why 2 ecu haltech is a better idea (or any other brand dual ecu)
1. You’re wrong the stock ecu controls way more than you think. Including(what I’ve heard) windows, locks, pretty much anything that makes the car a streetable car. Look up canbus I think that’s what the wiring style is called. Basically it’s 1 computer that controls all the systems. Instead of separate computers for each
2. haltech has more tuners that are familiar with it. And haltech is a reputable brand.
3. Haltech makes all the harnesses to plug and play with 2 ecus
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Thread Starter
Driver School Candidate
Joined: Sep 2015
Posts: 7
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From: WA
I'm well aware of what CANbus is. 2 ecu's and a modded harness is more points for failure, and the haltech is between $500 and $1000 more. I personally have 4 link tuners within 100 miles.
But I didn't start the thread to become a pissing match between brands, I was curious to see if anyone had actual experience here in the states with an IS.
But I didn't start the thread to become a pissing match between brands, I was curious to see if anyone had actual experience here in the states with an IS.
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