Chrysler EFI

[AL8001 at aol.com]

In a message dated 99-06-09 12:19:34 EDT, rmjones at cyberhighway.net writes:

>Response on initial 
>tip-in is good, until about a quarter of a second later, when it then feels 
>like a lean condition sets in.  It then kind of sags and surges in a minor,
>but 
>very annoying, way throughout the acceleration regime.

How about watching the ignition timeing?  Shouldn't be difficult to rig up a 
system that:  

Takes a signal from a add on magnetic sensor placed at TDC ( or some known 
offset)

Records RPM

And watches when the coil is fired.


Run the above information through a algorithm that takes pulse delay between 
the add on mag sensor and coil fireing, then factors in RPM ( really degrees 
per second) to give spark advance.  

Some '80s engines  had a probe mount on the front cover  (GM) or had a pipe 
plug in the block and a notch on the crank ( Ford 1.6 Escort ,2.3 Mustang) to 
set timeing at the factory.

Harold
95 degrees in PA, not a good time to write coherent E mail!