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Originally Posted by FTe342
Is this J3 chip & the QH one just a piggyback chip like a Unichip?
If so, can the car computer "learn" its way around the piggyback as I have read elsewhere on here
Will the QH work on AU III ?
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A piggyback such as a Unichip or Haltech are interceptors. I don't know if they alter the input from the sensors before the
ECU, or alter the output command from the
ECU. Either way the
ECU is being lied to and the adaptive learning can basically alter the fuel trims etc, etc back to their original targets over time. With a J3 chip, the
ECU is getting its commands, settings, parameters and all that directly from the chip. There is no "middle man" so to speak. And yes the QH can be used on AU III, just like mine.
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Originally Posted by auIILTD
This is awesome Craig. I have been reading non stop since you provided the links last night. I am hooked. The MQH option appears to be very very doable - just a lot of reading and learning to do!
Quick question, did you have the QH hardware when you did most of your reading / learning? It makes sense that you have the data logging functionality available to you whilst you are learning.
I am hooked - I think I could do this!
Stu
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I did a lot of reading before I purchased anything.
I don't have the datalogging up and running just yet, as my strategy was unsupported at the time I purchased it. Matt and I have organised to get together in the future to get it sorted. It hasn't bothered me because I have an LC-1 wideband to monitor A/F ratios.