Tuners please help!!!
Thread Starter
Intermediate
Joined: Aug 2016
Posts: 30
Likes: 1
From: Tinley Park IL
Tuners please help!!!
Just finished the heads and cam swap on my c6Z. Took it to the tuner to find out the ecu is locked from the previous tuner!!! I've been told the dealership can factory reset the ecu allowing my tuner to access the ecu.... Is this true or have I been misguided thanks.
Le Mans Master
Joined: May 2016
Posts: 7,109
Likes: 1,546
From: Florida
yeah, unfortunately a tuner lock is like a password on a computer. NEVER NEVER accept a tune from a shup that locks the tune.
Le Mans Master
Joined: Oct 2014
Posts: 8,672
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From: Atlanta GA
Burning Brakes
Joined: Aug 2010
Posts: 918
Likes: 47
From: Northborough MA
I thought you could still flash the pcm regardless. The tune is locked, so you cannot read the pcm. You will need to purchase new credits, but I could have sworn you could perform a "write entire" with another tune that is not locked. Like another stock calibration.
Race Director
Joined: May 2004
Posts: 16,667
Likes: 1,209
From: Raleigh, NC
St. Jude Donor '15
Don't think full write will work if it's locked, at least not on E38's. Seems like that was an option on the older gen 3 stuff but it's been a long time since I've messed with those
Burning Brakes
Joined: Aug 2010
Posts: 918
Likes: 47
From: Northborough MA
I searched, and you are correct...once locked, they cannot be overwritten with tech II or HPTuners.
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Former Vendor
Joined: Feb 2017
Posts: 381
Likes: 80
I could provide you with a new ECM, and it'd be an upgraded ECM if you have a 2006-2009.
Check it out here
Check it out here
Last edited by DSX Tuning; May 20, 2017 at 06:16 PM.
Le Mans Master
Joined: May 2016
Posts: 7,109
Likes: 1,546
From: Florida
I could provide you with a new ECM, and it'd be an upgraded ECM if you have a 2006-2009.
Check it out here
Check it out here
Former Vendor
Joined: Feb 2017
Posts: 381
Likes: 80
For you, it would add the integrator delay table for O2 sensors which can help with drivability. You'd also get a larger IFR limit for later on down the line if you ever run large injectors.
Le Mans Master
Joined: May 2016
Posts: 7,109
Likes: 1,546
From: Florida