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Hi all need some help advice.
Im getting a bootload error when I try to read my ECU the hptuners guy says it's interference, I thought it might be locked by previous owners tune.

Any advice on removing interference I've pulled a slew of fuses and no change. Anyone else have this issue or know what I would need for a bench harness if that's what everyone else does?
 

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2004 Saturn Ion Redline
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Hmm...I just got my HPTuners for my 2006 and I haven't had an issue reading my ecm. I was able to pull the tune, email it, and flash to my car.

I had one issue with flashing back to the car but only because I'm a noob and had to retrieve the credits I bought when I bought the interface

Probably dumb question but you had the key on engine off right? Doors closed?
 
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