Select Monitor (ssm1/OBD1) USB Cable

[BackWoodsBob]

There are a few of us over on rs25.com who are slowly but surly working our way to boosting our EG33's, or at least wanting to eventually tune.

Someone brought up this morning using a USB to SSM adapter. But that it could be made with a regular old USB cable, does anyone have input on that claim?

[b3lha]

Originally Posted by BackWoodsBob

There are a few of us over on rs25.com who are slowly but surly working our way to boosting our EG33's, or at least wanting to eventually tune.

Someone brought up this morning using a USB to SSM adapter. But that it could be made with a regular old USB cable, does anyone have input on that claim?

Sounds dubious to me.

The ECU requires a 5 volt TTL signal. Somehow you need to convert the USB signal to the TTL signal. The normal way to do this is to use a special USB to TTL cable. These are not expensive, usually much cheaper than the Legacy Audio cable you have to attach to the end.

I have heard that some older cellphone USB cables output a 5v TTL signal.

[BRZCory]

Originally Posted by BackWoodsBob

There are a few of us over on rs25.com who are slowly but surly working our way to boosting our EG33's, or at least wanting to eventually tune.

Someone brought up this morning using a USB to SSM adapter. But that it could be made with a regular old USB cable, does anyone have input on that claim?

:facepalm:

Yeah bob, it's not a *normal* usb cable like I thought, it's got a chip embedded into it that converts the signal. To that a lot of guys add a circuit board because the ECU outputs a "dirty" and weak signal, hence the ECUTune SSM adapter.

[BackWoodsBob]

Originally Posted by BRZCory

:facepalm:

Yeah bob, it's not a *normal* usb cable like I thought, it's got a chip embedded into it that converts the signal. To that a lot of guys add a circuit board because the ECU outputs a "dirty" and weak signal, hence the ECUTune SSM adapter.

I misunderstood what you posted then, my mistake.