MembersPage/PetrPodrazsky (2004-06-10 06:37:59)

I want implement Megasquirt AVR on Skoda 1.4 engine.

It is 4 cylinder 1397 ccm OHV, distributerless wastedspark ignition.

Ignition: Original module. It have two logic level inputs for 1-4 and 2-3 cylinder, without dwell control (I think).

Throttle: Electronically controlled with DC motor. (With the DC motor you must have feedback from MAP, right? TPS,RPM => MAPtarget. Otherwise it would be very unprecise. MarcellGal.)

This throttle body is originally mounted on this engine. It have TPS sensor. My configuration is like on this page

http://www.egr.msu.edu/autoweb/Class/Proj_2001/throttle/project.htm.

So my plans are to made separate unit that will read TPS and Pedal Position then compare values, make some adjustment and calculate PWM for H-bridge. Initial position of throttle is little open so for normal iddle it need little closing.

Photo of throttle body:

throttle1.jpg

throttle2.jpg

throttle3.jpg

Photo of engine: http://dnat.klfree.net:3380/disk/elektro/ecu/megasquirt/foto

Trigger wheel I plan use: trigger2.jpg