CCarlisi

The stand alone I am looking cannot control the stock oil metering pump (yet), so I am looking for work arounds. Does anybody know at a minimum what sensors the stock FD, FC, or 20B ecu requires to run the oil metering pump without erroring into a coma?

I know this sounds like a 1/2 assed solution, but bear in mind it would only be for ~6 months.

RETed

It's a quad stepper motor system with a feedback signal.
So 4 for the stepper motor and 1 for the feedback - 5 total.


-Ted

CCarlisi

Ted,

I know what is required to run the pump itself, but I am not sure what I have to connect to the ecu to get it to operate the pump as normal. I know the pump is mapped off RPM and MAP. At a bare minimum I assume the ecu needs a pressure and rpm signal. Does it also need TPS and other unrelated inputs like air temp, water temp ect?

RETed

Are we talking aftermarket or stock ECU?

TPS on aftermarket is usually only used for decel fuel-cut off, idle, and throttle transition.
I've mapped Haltechs without TPS (TPS died) just by enriching the low RPM transition stuff around "0" manifold.

Air temp and water temp are not really necessary, unless you have wide varied fluctuations in temps?


-Ted

CCarlisi

Stock.

In V1.62 of the e11 Halwin software the oil metering pump is mapped off TPS. In fact it appears to be regulated only based on TPS. I had previously assumed rpm also came into play, but I guess that is taken care of solely by the rotation speed of the pump shaft. It's hard to believe the change in oil flow is linear with the change in the shaft rpm.[/quote]

However, the AEM software appears to be setup the same way: I am not certain about the last part regarding injector duty. I assume they are referring to the map unit and are tricking the ecu into thinking it is operation any additional fuel injector to work within the confines of the program. Can someone confirm that is the case rather than it being mapped based of TPS AND Inj. %?

Assuming the above assumptions are correct, what's the big gain from using the Haltech or AEM controlled setup over the 2nd gen mechanical setup? Does anybody know what parameters the stock 3rd gen ECU controls the pump by?

CCarlisi

Correction: AEM does use fuel injector duty to determine how much oil to meter in.

http://forum.aempower.com/forum/index.php?topic=1964.0

pluto

stock 20B ecu runs maf (not map), rpm, and TPS to determine the amount of oil injected. I think it also require speedo (not sure on this one). Why not just run pre-mix if you're not sure what to do on this?

CCarlisi

Thanks. The speedo will be a problem because I am planning on using a 60-2 trigger wheel.

Re Premix, frankly if it came down to that I'd buy a different car. I fill up more than once a week, live in an area that is 100% full service, and don't feel like carting around oil or smelling like it when I walk into work.