Paul,



   Is there a good choice for EFI controllers for the 2^nd gen P Port?



   Which one could accommodate a MAF sensor?



   I have place a unit use in Ford V8s in the intake tract,



   Does TPS work on the P Port?



   Does Teeing the chambers using the oil spray orifices work with MAP on the P Port?



   I have an EC-4 single processor unit from Tracy,



   I just want to get the engine running and have been sorting out wiring sensors.



   Joe Berki



   Limo EZ 13b P Port


   Tracy's device is designed to use manifold pressure and not MAF sensors.

   The only controller that I know about that will use a MAF is the $3000 Motec.
   That has very steep learning curve indeed with inadequate documentation.

   Megasquirt might work.

   Do you know how to program in BASIC?

   What is TPS?

   Paul Lamar

TPS is generally known as Throttle Position Sensor which tells the ECU how much open the throttle is. The electronic diesels use the same. The rate of change of the voltage sensed by the ECU from the TPS can give fuel enrichment during quick throttle opening. That feature not needed for AC.
On a Speed/ Density EFI system the MAP sesor gives density of the air. The speed is from a sensor on the crankshaft or distributor. The TPS gives load or demand. These are the main three sensors. The rest are there to trim the A/F ratio. The CTS (coolant temperature sensor) acts like the choke on a carburetor for starting and then trims the fuel quantity. A warmer engine requires less fuel.

Dale Davies


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