[Carsten]

Hi Carsten,
do you need all 10 PCB or would you sell one to me?
BR Karsten

Hello Karsten,

let me first have them here and complete them (some components are missing). Then I will make my mind up, what I will do with them
I assume that these 10 will not be all and I will need more.
So, I will come back to you later.

Is it possible to send personal messages on this platform?
I haven't found the button yet....

CU Carsten

[jonbill]

Hi Carsten,
do you need all 10 PCB or would you sell one to me?
BR Karsten

Hello Karsten,

let me first have them here and complete them (some components are missing). Then I will make my mind up, what I will do with them
I assume that these 10 will not be all and I will need more.
So, I will come back to you later.

Is it possible to send personal messages on this platform?
I haven't found the button yet....

CU Carsten

Yes, under your name at the top: "messages"

Screenshot_20240103-203916.png (232.58 KiB) Viewed 2596 times

[chaoschris]

Is there any configuring of the Bosch IC needed?
I connected all the pins to the probe and Pin 4 to +12 V but I get no Lambda reading.

Hello Mario,
yes, you need to enable the CJ125 by software in Tunerstudio.
You must program Output 49 to get low level when the engine is running (or whatever you want to enable it).

enable_lambda_blitzbox.png (38.44 KiB) Viewed 2418 times

This is an example how this could look like.
You need to program at least one condition as the lambda controller only starts to work when the enable input is set to low level.
I would suggest to start with one condition (rpm>0) and if you want to add one more condition you can add for example a minimum CLT temperature. There is also an option to set a time delay.

Best regards,
Chris

[chaoschris]

I connected Pin 14 to my MAP Sensor but there is no sensor reading.
+5 V and ground are connected and all my other sensors are working.

Hello Mario,
i am pretty sure this behaviour belongs to software and not to any hardware problems.
This is the software configuration in speeduino:

pinMAP = A7; //internal MAP sensor
pinBaro = A5; //external MAP/Baro sensor pin

What is your configuration in Tunerstudio?

Best regards,
Chris

[Hich]

Hi Carsten,
do you need all 10 PCB or would you sell one to me?
BR Karsten

Hello Karsten,

let me first have them here and complete them (some components are missing). Then I will make my mind up, what I will do with them
I assume that these 10 will not be all and I will need more.
So, I will come back to you later.

Is it possible to send personal messages on this platform?
I haven't found the button yet....

CU Carsten

ok, perfect

[ME124]

I connected Pin 14 to my MAP Sensor but there is no sensor reading.
+5 V and ground are connected and all my other sensors are working.

Hello Mario,
i am pretty sure this behaviour belongs to software and not to any hardware problems.
This is the software configuration in speeduino:

pinMAP = A7; //internal MAP sensor
pinBaro = A5; //external MAP/Baro sensor pin

What is your configuration in Tunerstudio?

Best regards,
Chris

Hi Chris,

the configuration in Tunerstudio looks like this:

PXL_20240131_180608578.jpg (541.28 KiB) Viewed 1644 times

I get no change in MAP value when applying pressure on the sensor.
The behaviour is the same when I enable the EMAP sensor and assign pin 5 or 7.

However, when I enable the oil pressure sensor on pin A21 the oil pressure responds to the applied pressure on the MAP.

PXL_20240131_181044150.jpg (366.06 KiB) Viewed 1644 times

Is there something wrong in my configuration?

Thanks.
Best regards
Mario

[ME124]

Is there any configuring of the Bosch IC needed?
I connected all the pins to the probe and Pin 4 to +12 V but I get no Lambda reading.

Hello Mario,
yes, you need to enable the CJ125 by software in Tunerstudio.
You must program Output 49 to get low level when the engine is running (or whatever you want to enable it).

enable_lambda_blitzbox.png

This is an example how this could look like.
You need to program at least one condition as the lambda controller only starts to work when the enable input is set to low level.
I would suggest to start with one condition (rpm>0) and if you want to add one more condition you can add for example a minimum CLT temperature. There is also an option to set a time delay.

Best regards,
Chris

Hi Chris,

I got the CJ125 to start heating but at some point it stops and it doesn't read lambda.

I think it's best to show you the behaviour in the attached video.
https://photos.app.goo.gl/joqKuf5qYUf12rLX9

Do you know this behaviour?

Thanks.
Best regards
Mario

[chaoschris]

Hi Mario,
have you applied the base tune direct after going online for the first time? You have to do this BEFORE doing anything else.

https://github.com/oelprinz-org/Blitzbo ... 202305.msq
I have seen that there is no base tune for the newest firmware version202310, need to add it again.

Which firmware version do you use?

If you are using the latest one (202310), can you please check it again with a older version like 202207.1 from here (including the msq for this version)?

https://github.com/oelprinz-org/Blitzbo ... e/202207.1

Best regards,
Chris

[ME124]

Hi Chris,

sorry for my late reply.
I tried using the base tune like you said.
I also reflashed the firmware a couple of times and tried different versions.

But my problems still are the same.
MAP is without response.
If I change the output pin of my MAP sensor for example to TPS, I get a response to the change in pressure.

The second problem is:
My oxygen sensor is heating up normally, but there's no responsen in the lambda value in Tunerstudio.

Are there some additional settings I missed?

[Gushito]

Hi Chris,

sorry for my late reply.
I tried using the base tune like you said.
I also reflashed the firmware a couple of times and tried different versions.

But my problems still are the same.
MAP is without response.
If I change the output pin of my MAP sensor for example to TPS, I get a response to the change in pressure.

The second problem is:
My oxygen sensor is heating up normally, but there's no responsen in the lambda value in Tunerstudio.

Are there some additional settings I missed?

Hello ME124
You need to connect the map sensor to the internal baro pin. I had the same situation and was able to resolve the issue.


Chris, your box, it's the best! I placed an order with jlcpcb and I'm doing tests on my car, I need to add a 4-wire stepper motor, I'm making a parallel PCB with the DRV8825 driver but I don't know if I'll be able to get it to work!
I also have to solve the problem with reading lambda, I can't read anything, I enabled the configuration on pin 49, like in your screenshot, but nothing happens. I am using 202310 fw and v.0.1.2 for the probe.
I also built an oled screen to connect to rx3 and tx3, but nothing happens either, I enabled serial mode in tunerstudio but it doesn't work, maybe I need to readjust the assigned pins? Use of d0 and d1 on nano arduino to oled board.
Can you help me with any of these issues?
Thank you!!