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15-10-2018, 11:43 PM
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Starter Motor
Join Date: Oct 2018
Location: Perth
Posts: 22
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Hi,
I've got a computer reader for my car (OBD2), and I have seen that my timing advance likes to jump up and down when I am idling (graph here). Is this right? Thanks for your help.
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Self servicing my Ford Fiesta WS 2010 Petrol to learn more about cars |
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16-10-2018, 08:36 AM
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Chairman & Administrator
  
Join Date: Dec 2004
Location: 1975
Posts: 107,375
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That looks like a reasonably normal pattern, Are you experiencing issues?
Cheers Russ
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 Observatio Facta Rotae
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16-10-2018, 09:30 AM
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FF.Com.Au Hardcore
Join Date: Apr 2012
Posts: 980
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Is that from start-up?
If so, why are you starting with the throttle opened? As Russel said, looks ok, settling down from throttle open to zero.
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Steve Current rides 2012 Mondeo Titanium wagon (TDCI) Moondust silver 2016 Focus Trend, 1.5ecoboost, 6sp manual. Frozen white Previous 2004 Berlina Wagon (LS1) Vespers Blue 1995 Camry 2.2, white 1971 Ford Fairmont wagon 302w, C4 Polar white 1971 TC Cortina, 2L 4sp, Ermine white |
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19-10-2018, 10:00 PM
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Starter Motor
Join Date: Oct 2018
Location: Perth
Posts: 22
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No I am not experiencing issues (besides my cruise control button randomly working then not). I had my foot on the throttle to give it some revs. Why is the timing advance going up and down like that?
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Self servicing my Ford Fiesta WS 2010 Petrol to learn more about cars |
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19-10-2018, 11:23 PM
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FF.Com.Au Hardcore
Join Date: Feb 2005
Location: Pit Lane
Posts: 11,867
 
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It is normal for spark to jump around at idle as the ecu will use it yo help control idle speed
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Pit Lane Performance 20 Rosella St Frankston 03 9783 8122 Authorised Streetfighter, Pcmtec , SCT & HP Tuners Tuning Agent,
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03-11-2018, 11:08 AM
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Starter Motor
Join Date: Oct 2018
Location: Perth
Posts: 22
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I was driving yesterday with cruise control and watching the engine timing advance, and it is dropping 15 degrees almost instantly then going back to the value it was. I feel a gentle jerk when this happens. This is the image of this log while it was happening. Is this normal?
https://www.dropbox.com/s/0fsuqjvgdz...05_16.jpg?dl=0
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Self servicing my Ford Fiesta WS 2010 Petrol to learn more about cars |
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What is normal Timing Advance?
Re: What is normal Timing Advance?
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