Have any other Haltech users ever experienced connectivity issues when connecting to your laptop? I can start ECU Manager, plug in, turn the ignition to ON, and hit connect and it will connect. But as soon as I crank the engine it will lose the connection and I can't get it back. I have to restart the software and turn the car back off/on again. Sometimes I'll get lucky and it will stay connected when I crank the engine, but it will lose the connection as I'm driving pretty quickly. Anyone know what's up with this?

 

Have you tired another laptop? Just to rule out that issue. Also, make sure you run the haltech tuning program as an Admin, I know that AEM requires that.

 

My tuner had intermittent issues with it too on his laptop a few weeks ago. I'll check with my work computer tomorrow.

 

I have not experienced that, but I have only connected half a dozen times. So it sounds like engaging your starter interrupts the connection. In general, my SC setup runs the coolant pump and fan in my air to water IC, so I am almost always idling the car when I hookup or I drain battery fast.

Are you always using the same cable? I have one USB running from the Haltech under the carpet and coming out behind the seat. If you have something similar then it could just be a bad cable. The cable is the cheapest piece in the chain.

 

Yeah I'm the same... Routed the USB from the Haltech under the driver door trim so I just pop the door trim up and there's the cable. If I am connected, no amount of fiddling with the cable will cause it to disconnect. Also, no amount of fiddling with the cable will get it to reconnect after it has lost connection. I suspected the cable at first too, but it seems OK. I checked the connection of the cable to the ECU while I was at the tuner's and it was fine.

 

Hi Guys - Try swapping the USB cable for a different one. Its probably not a connection problem per se (so no amount of wiggle will cause/fix the problem) more likely the cable shielding isnt doing its job which is allowing electrical noise (maybe from the alternator/charging system) to cause issues. This sort of noise can crash the USB driver which is why you require the software restart to re-establish connection.

-matt

 

Thanks for stopping by and offering your advice Matt!