2003 gsr... Op?

 

OP1.3 or OP2.0.

If you measure voltage at the 12-pin connector on the car (without the flash interface plugged in), you will see ~5v. That's normal. When you plug the flash connector in, 12v goes IN from the OP2.0/1.3.

Are you sure it wouldn't be locked? Some amateur "Pro" tuners still do that. No response to any known code means that the init code isn't something the software recognizes, or there's absolutely no connection at all between the ecu and the OBD port/flash port. If you can log, but can't flash...then you either have a voltage issue, it's locked, or there is no 12v coming from your flash interface to the ecu.

 

Im ruling out the voltage issue, bc the battery is literally brand new and have started it and let it idle. I have the old tuned ROM and the INIT CODE is 0001, so idk how it could be locked. I have the 1.3 cable. I checked for voltage on the single pin coming outta the car, and it was 4.65v

 

Make sure the cable you're using matches the box checked... I sat there scratching my head until I realized 2.0 cable was selected and I had 1.3 in the car

 

Ok, so it's all good then, at least on the hardware side. Something is definitely not playing fair . I'd check to see if there is 12v coming out of the 1.3 cable's flash wire when it's plugged into the OBD2 port. It's possible that it may have broken and gone dead...

 

Ill plug it into the laptop and grab the volt meter and see what I got. I am sure I selected the 1.3 and have used Evoscan and Ecuflash.

 

only 2.94v out of the white connector when plugged up to the laptop?

 

No, plug the 1.3 into the car, then check the white plug. It gets it's voltage from the obd2 port.

 

Obd2 plugged in, getting .02v at the white connector unplugged. Im guessing the wire is damaged? Anyone repair these? Is there anyway it could be a blown fuse or something stupid?

 

Not sure who repairs them. You might have to send it back to Evoscan, or find an electrical repair shop nearby.

Another option is to connect 12v switched IGN power to the flash connector (in the car, not the one from the OP1.3) while you plug the cable into the OBD2 port. That'll put the ecu into boot mode just like it should be, and you can read/write to the ecu. A wire from the battery will work too, but be CERTAIN the voltage stays above 12v.

 

that's a good idea, I can run a jumper wire to it

 

I had the same problem bought a new cable and I'm good. I was lucky enough to have a friend near by with a cable I could borrow and it worked.

 

I ran a jumper wire from the radio fuse under the dash and it worked. Thanks for the idea Broke4. I really didnt wanna have to buy a new cable.

 

You're welcome, glad to help! .