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Torque » Torque OBD ECU Scanner » Torque Discussion / Ideas » Timing Advance on 2003 SL55 AMG

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Author Topic: Timing Advance on 2003 SL55 AMG
vnova94
Member
Posts: 1
Post Timing Advance on 2003 SL55 AMG
on: August 5, 2019 (GMT)

I’m confused regarding the timing advance readings i’m getting on my 2003 Mercedes SL55 AMG.

The app is reading -22 while cruising and peaks up to about a -5 during WOT.

My understanding is that anything negative is retardation and anything positive is advanced. Is this incorrect?

Thanks,

Matt

2003 Mercedes SL55 AMG
moreause
Member
Posts: 616
Post Re: Timing Advance on 2003 SL55 AMG
on: August 8, 2019 (GMT)

not always first time i see negative number

normally it just advance
..so always positive

and knock timing is retard ..remove timing advance but is most of the time shown positive

it just result in a lower advance

but your value are weird … it’s like they a referenced to another value
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