weird codes and long process to remove them.

[dcnxero]

01 BMW 325Ci
sn# 53572
software ver. 4.4.3.0
37820-PPA-A58 (my ecu recognizes it as a PRB ecu)
kmanager 4.4.3.0
k miata intake, 1000cc injectors, b series tps, 4 bar map sensor, 74mm throttle body, b series iat, and its rwd (as if I needed to say that)
jdm express Japan in Orlando Fl May 5th 2020
After so many key cycles on and off (3-4) whether it ran or not I'll get a some codes that come on. Each time something different. The first time it was the multiplexer and O2 codes, the second time it was daughter board communication, the iat, and iac codes. I check everything and it OK all sensors are getting the proper voltage to the right pins O2's turned off also disabled multiplexer. Car run fine even with the codes display and sensor shows iat and iac are functioning properly.
Now go to clear the DTC's and upload to ecu. Codes clear off of screen but not ecu, because when activating datalog they're still there. Only way to clear them is to unplug the computer or disconnect battery. Is this normal.

[Spunkster]

I would recommend trying the ECU in a different vehicle and see of the same problem persists.

[dcnxero]

Can do. Just need a couple days to find the perfect candidate. But if I can't you think its OK to run it like that I do need to finish up checking leaks and cooling system efficiency.

[Spunkster]

It depends on what the real issue is.

[dcnxero]

Ok solved the code issue it was the 2 big connectors that are grey and black and split the harness from the bay.
Now I have another ???? I want to hook up the fan control thru the ecu. Is there a diagram that you can refer me to that will allow the fan to be controlled by the ecu. This is due to the swap i don't have the fan control switch on the radiator. Can put one in if need to. Just seeing my options

[dcnxero]

Also for got to ask i bought a prosport wideband it says it has a 0-5v output for analog. Which why should i splice it to on the kpro the one that says +invert or - ? Sorry can't give better labling but not near car or lap top

[Spunkster]

I would recommend that you find the factory service manual and look at the wiring diagram for a stock RSX and wire your vehicle accordingly.

You can input the aftermarket wideband signal to the analog inputs on the K-Pro itself.

http://www.hondata.com/help/kmanager/an ... b=wideband

[dcnxero]

First I like to say hope this isnt an no no to keep bringing up this thread for my questions, but since all my info about my ecu and car has been put on it, i think it easier like this so no info will be lost.
QUESTION
Is there a way to set up some type of rpm switch thru the kpro that will allow me to activate a vacuum pump either at 3k or right at boost levels?
EXPLANATION
I have done this on my Integra, by way of boost controller, but when the intake psi get to 0psi my vac pump activate putting a negative psi on crank case when crankcase psi are at their most.

I was thinking using the Nos parameters to activate it but dont know if it will give it a constant signal to the relay to switch on the pump or if it could be rpm controlled.

[Spunkster]

You can try and see how it works for you, but it is not something I have any firsthand knowledge of.

[dcnxero]

Wish I could change the title.
so I came across another issue. My map values don't change with revs or engine load. i tried it with 2 different map sensors(stock map and aftermarket), went and re-wired the map sensor by its self to make sure it was wired right and still no changes. in the datalog i sent with it you can see that it stays in the -17/-14 range when set to stock map sensor and only changesto 4/7 range when switched to 4 bar map. Also even tho i unplug the sensor I don't get a code for the map sensor.

[dcnxero]

also forgot to ask just to make sure, I have been using the hybrid racing euc pinout for my wiring. to be sure that this is a good source of info, could you tell me which pins are the map pins on the A connector (A11, A19, A21).

[Spunkster]

The ECU pin outs are in our help file: http://www.hondata.com/help/kmanager/ecuconnectors.htm

[dcnxero]

forgot this