misa

I soldered the diode inside the ECU, unplugged the air pump, and cleared the CEL. Now I am getting a CEL, but when I plug in my scanner, there are no codes registered. Cleared several times, but when I shut off and turn on the car. Any help here....am I missing something?

If the car have automatic transmission it could be a code for transmission.You can't read those codes with standard scanner.At least you would need vol-fcr.

Some auto transmission codes are presented via check engine light.

The other possibility is that you have a specific volvo code which can't be read via standard obd II reader.

I also think that it should work but i'm not sure.

Can anybody else confirm that it will work or i need to dig deeper to find #1N4003?

Can somebody confirm that diode #1N4007 instead of #1N4003 will work?

That's the only diode i could find in Serbia for now.

I talked with my electrician today and he said that the ONLY difference between 1N4003 & 1N4007 is that 1N4007 can deal with higher voltage than 1N4003,all other characteristics are the same.

What is your opinion?