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RE: [T3] Was EFI, now wheel bolt sizes


On 9 Jul 2004 at 8:15, RichardSt@price-hvac.com wrote:

> >then you can get 
> >air sucked in there along with the gas. That will make that cylinder run
> lean, which can be hard on the engine.

> Yeah, but one thing I'm not sure of: the D-Jectronic system uses a manifold
> pressure sensor, not and air flow sensor. So even if there was a leak, the
> pressure reading should be correct right? ... Although, I don't know how the
> throttle position sensor would come into play. 

You're obviously thinking about this correctly, which is good. The problem with 
a leak at the injector is that it occurs downstream of the port for the 
pressure sensor, so that cylinder will still run lean, just because the 
pressure drop along that intake air line won't be right.

> -On that note, I'd love to find some literature specifically on the
> D-Jectronic system. Does anyone know any good sources? 

Here are the 2 best sources:

Any one of these Elfrink books, long out of print, will be good. The later 
editions just contain additional material to cover later versions of the FI.

Volkswagen Fuel Injection Technical Manual
(covers Type III only)
published by Henry Elfrink, Los Angeles, 1969

Volkswagen Fuel Injection Technical Manual, second edition
(covers Type III only)
published by Henry Elfrink, Los Angeles, 1970

Volkswagen Fuel Injection Technical Manual, forth edition
(covers D-Jetronic Type III, IV, 914)
published by Henry Elfrink, Los Angeles, 1972

And of course the Bentley is actually pretty good here.

Volkswagen Official Service Manual
Type 3 Fastback and Squareback 1968-1973
published by Robert Bentley, Cambridge, Mass, 1974
ISBN 0-8376-0057-X / LPV 997 383 / VSQU
(excellent book, complete and well written)

-- 
Jim Adney
jadney@vwtype3.org
Madison, WI 53711-3054
USA

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