Anyone know how to reset ECU to stock?

The current tune done by a tuning company sydney has ruined my engine a costing in $1900 repairs.
Going to reset to stock and get it re-tuned else where.
Will the car be okay to be driven with full exhaust without a tune?
Also, if you don't want to visit dealer, tuners usually have ready generic software ( modified stock) .
ps your E63 S has m157 engine not 156.



I Had OE on my 6.3 and no issues. I had headers, cat delete with stock mufflers. BMC filters and gutted airbox and scope flaps removed.
Best exhaust note of all my AMGs.
From what I understand the stock ECU is very safe (esp on an N/A motor) in that it retards 8 degree's of timing if it detects knock. I'm guessing your pistons are fine....curious as to what else the issue is.
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From what I understand the stock ECU is very safe (esp on an N/A motor) in that it retards 8 degree's of timing if it detects knock. I'm guessing your pistons are fine....curious as to what else the issue is.
The car never ran out of fuel which i thought was the issue so did Benz, The car miss-fired again so they tested it again and it was only the Left side of the engine miss-firing, right side fine.
They proceeded to clean the injectors (incase they were clogged), and when they noticed the left side spark plugs completely ruined from running to Rich causing miss-fire.
When they changed the plugs i requested the car to be sent off to a near by Dyno (20miles away) where they tested the car which showed up the ECU tune being out of "wack(poorly tuned)", (have a result).
That clunking sound in the engine i was hearing was the car Miss-firing by the way which made me think i might've busted the Motor.
The shop that put the tune on I doubt would ever take responsibility but it is the same shop which added the weistec charger to my car which "blew" my power steering 3 times and ended up being they used old O rings which was causing this issue instead of replacing all the seals.
Now after spending $2100 on all this, The car is inspected, Stock tune back on the car I have to book it in to get properly tuned again from OE tuning this time as i've heard nothing but good by people.
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Good luck with the OE tune. Are you going to opt for a raised rev limit too? Part of me would like mine higher, but I'm scared about starving the rod bearings after sustained use up to 8000rpm.
Yupp fouled plugs due to a tuner not doing his job properly.









