XR25PC Success

[Express50]

Hello Mister
I have an Express C3G.
I try to read the ECU data to make sure that all devices are OK : the rate of CO is no good
I have tried to do the same as you did : XR25 on PC+ODBII with 4 cable to the odb 12 pins : ground, +12V, K line, L line.
It didn't work.
Are you sure your car is a C3G, because C3G is supposed (as far as I read) to connect with ELM (ISO 9141), not with ODBII.
Thank you for any explanations

[ronenfe]

Hi.
You better get a renault Clip. XR25PC can't help much, the values were wrong, it only can show errors. Yes I have c3g with a Magneti Marelli ecu. If you have a different ecu you will need to rewire the wires differently as described in the Bulgarian forum. The cable is Vagcom kkl and must use the ftdi chip. it's not using obd2, it's just using the connector and the ftdi chip to change the data to serial communication for the usb.
You can see my video here:
https://www.youtube.com/watch?v=FL6buPzzBhw

[ronenfe]

Hi.
You better get a renault Clip. XR25PC can't help much, the values there can't be trusted, it only can show errors and you can't erase them. Yes I have c3g with a Magneti Marelli ecu. If you have a different ecu you will need to rewire the wires differently as described in the Bulgarian forum. The cable is Vagcom kkl and must use the ftdi chip. it's not using obd2, it's just using the connector and the ftdi chip to change the data to serial communication for the usb.
You can see also a video here:
https://www.youtube.com/watch?v=FL6buPzzBhw

For emission problems you can also check the voltages you get from the o2 sensor, clean the monopoint or use a cleaning fluid in the gas tank, check for exhaust leaks or vaccum leaks.

See my previous posts in the forum, I had to deal with emission problems for a long time.