Dual ECUs
Thread Starter
Super Member
Joined: Jul 2012
Posts: 737
Likes: 60
From: HESPERIA CA
2011 E550
Dual ECUs
Hey guys, so just to make this as non boring and straight forward as I can, would using two ECUs, one tuned and one stock prevent MB from seeing I had a tune on the car?
I ask this not to seem like a cheating charley, and defraud MB for my own actions, but I also don't want to be held holding the bag for something that had nothing to due with a tune. I do know if MB knows I have a tune, they'll 99.9 point to that, even though it had nothing to do with a power train failure in question.
I ask this not to seem like a cheating charley, and defraud MB for my own actions, but I also don't want to be held holding the bag for something that had nothing to due with a tune. I do know if MB knows I have a tune, they'll 99.9 point to that, even though it had nothing to do with a power train failure in question.
Member
Joined: Aug 2018
Posts: 78
Likes: 25
From: Nomadic
2015 CLS550C4 (C218)
You could always simply go this route: https://www.renntechmercedes.com/index.php/products/hht
Majority of the tuning companies are doing this now....
THE HAND-HELD TUNING MODULE / TUNE OR STOCK ON THE GO
The RENNtech Hand-Held Tuning Module creates significant gains in horsepower and torque across the vehicle’s entire power band. By modifying ignition timing and throttle mapping, optimizing air-to-fuel ratios, increasing the engine’s rev limiter and modifying boost mapping for turbo-charged vehicles, RENNtech performance software unleashes the true potential of your Mercedes. RENNtech HHT (Hand-Held Tuner) allows you the unlimited ability to switch between TUNED or STOCK ECU programming without ECU removal!
Our proprietary tuning module stores both the RENNtech TUNED file and your vehicles STOCK firmware file. The module plugs directly into the OBD2 port and delivers the file directly to the ECU. Programming takes only a few minutes and the vehicle can be re-flashed any time and as many times as you wish. Tune or back to stock on the go!
RENNtech has been at the forefront of ECU tuning since electronic engine management since the mid-1980s. Decades of experience with BOSCH Engine Control Units, countless hours of in-house Research & Development along with exhaustive testing ensures that our ECU upgrades offer incredible performance gains and rock solid daily driver reliability.
Majority of the tuning companies are doing this now....
THE HAND-HELD TUNING MODULE / TUNE OR STOCK ON THE GO
The RENNtech Hand-Held Tuning Module creates significant gains in horsepower and torque across the vehicle’s entire power band. By modifying ignition timing and throttle mapping, optimizing air-to-fuel ratios, increasing the engine’s rev limiter and modifying boost mapping for turbo-charged vehicles, RENNtech performance software unleashes the true potential of your Mercedes. RENNtech HHT (Hand-Held Tuner) allows you the unlimited ability to switch between TUNED or STOCK ECU programming without ECU removal!
Our proprietary tuning module stores both the RENNtech TUNED file and your vehicles STOCK firmware file. The module plugs directly into the OBD2 port and delivers the file directly to the ECU. Programming takes only a few minutes and the vehicle can be re-flashed any time and as many times as you wish. Tune or back to stock on the go!
RENNtech has been at the forefront of ECU tuning since electronic engine management since the mid-1980s. Decades of experience with BOSCH Engine Control Units, countless hours of in-house Research & Development along with exhaustive testing ensures that our ECU upgrades offer incredible performance gains and rock solid daily driver reliability.
