Bosch Mono-Jetronic

[Wouter de Waal]

So I said:

>The system consists of a single injector in the throttle body, an inlet air
>temp sensor, a throttle position sensor, a servo to control the throttle at
>idle (idle speed), a water temp sensor and a lambda sensor. And engine rpm
info >is sent to the system from the ignition computer.

(I get the digest, so I won't quote the replies to this, but I'll try to
answer the questions)

No barometric pressure meter. Definitely no air mass / manifold pressure
sensor. Except if they're using the inlet ait temp sensor (looks like a
thermistor) but if that's the case they're _really_ good :-)

Dump of the EPROM - I'm planning to do that... :-)

Engines with little vacuum? Well this one has lots, but lets face it this is
much cheaper than using a MAP/MAF sensor. Pity about the flat spot.

Apparently the system can "learn" as well, storing stuff in RAM. But maybe
the engine's getting a little loose by now (110000 km) and the tables are
bottoming / topping out.


BTW Bosch built the D-jetronic system used by VW. Check out the sig. MAP
sensor, all analogue, quite a hack really. Ask /Bill (Bill Lewis) for
further details (Sorry Bill :-) I can tell you too if you're _really_
interested :-)


Thanks

W
--
Wouter de Waal ZS1KE  GE>AT d-(pu) s+:-- a- C++$ UL+ U*+$ P>++ L++ E- W N+++>++
Argo 505 / FT200      !o K w(--) !O !M V(--) PS+ PE++ Y+ PGP>++ t 5? X? R?
                      tv>--- b+++ DI+ D+ G e+++(*) h--- r+++ y+++(*)

'72 Puma - 1700 FI Type IV engine                          Perseverance my son,
'6? Series IIA SW - factory fitted Lucas immobiliser         it's a   Land/
                                                                       /Rover
"All journeys end when we reach our destination but the journeying
remains a thing apart, unique unto itself. Most of us make life's journeys
without understanding that the journeying is a separate thing." -- Bob Hoover