Re: So, ....more questions - Saab 900 Bulletin Board - Saabnet.com
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'85T has LH 2.2. Depending on when it was made, it might have an early or late subvariant. There's been some disscussion about that. I think that Anders mentioned that a few months ago.
There's also an adjustment on the AMM for the LH 2.2 that somehow has automatic compensation on the LH 2.4.
The differences between a 2.2 and 2.4 are significant enough that it would take some effort in underhood rewiring to make the switch between the ECUs work. The AMMs for LH 2.2 and 2.4 are different and aren't compatible.
Maybe Justin van Abrahams has gone through the process of switching between LH variants and he could offer some advice. Other than diagnostics, I don't see much benefit in trying to make the switch.
posted by 66.21.1...
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