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Old 02-09-2017, 09:23 AM   #12 (permalink)
It's all about Diesel
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Originally Posted by ThermionicScott View Post
Just something with an oxygen sensor. If memory serves, none of the early stock VW systems had one.
When it comes to CNG conversions, some folks refer to a single-point injection setup as "closed loop" and to multi-point injection as "positive pressure". Anyway, I'm not so used to those older EFI setups, but oxygen sensors were not so common at least until mid-'80s.
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