[T3] Diagnosis help for a badly running 1971 VW 411

Jens Vagelpohl jens at type4.org
Mon Aug 12 19:13:39 PDT 2019

Hi Keith,

Yes, the 1.8 (engine code EC) was L-Jetronic. Same engine with the same engine code as used in the 1974 Porsche 914. I used to own a 412 wagon with that exact engine.

In Germany the 1.8 was switched to dual carbs in 1974. A lower-compression version with 75hp and a higher compression one with 85hp.


> On 12. Aug 2019, at 21:09 , Keith Park <topnotch at nycap.rr.com> wrote:
> Interestingly, T4's never got the Pressure sensor WITHOUT the diaphragm
> What we do need to check is that the 1.8L T4 motors were L jet, all the
> others were D jet.
> Keith

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