What's your OBD data values?
Thread Starter
There's no Acura in
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Joined: Sep 2008
Posts: 665
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From: Chicago, IL
What's your OBD data values?
Can anyone post their values of certain OBD data @ idle?
I'm looking for:
- Engine speed (rpms)
- Absolute Throttle Position (%)
- Calculated Load (%)
- Timing advance (degrees)
- Manifold Absolute Pressure (inHg)
- Long-term Fuel Trim
My current values @ idle:
- 750ish rpms
- 9.4% throttle
- 9.5 degrees timing advance (cylinder #1)
- 8.0 inHg Manifold Pressure
- +3.4% Long Term Fuel Trim
------ if you don't have a way to access it, all you need is a cheap ELM327 compatible OBD interface which spits out to USB (or serial)....then free software on your laptop. I have one of these ($28)
I'm looking for:
- Engine speed (rpms)
- Absolute Throttle Position (%)
- Calculated Load (%)
- Timing advance (degrees)
- Manifold Absolute Pressure (inHg)
- Long-term Fuel Trim
My current values @ idle:
- 750ish rpms
- 9.4% throttle
- 9.5 degrees timing advance (cylinder #1)
- 8.0 inHg Manifold Pressure
- +3.4% Long Term Fuel Trim
------ if you don't have a way to access it, all you need is a cheap ELM327 compatible OBD interface which spits out to USB (or serial)....then free software on your laptop. I have one of these ($28)
Thread Starter
There's no Acura in
iTrader: (2)
Joined: Sep 2008
Posts: 665
Likes: 0
From: Chicago, IL
Never mind, found my answer in the Helm manual (page 11-11; Vol 1 : Fuel and Emissions Systems : PCM Data)
Engine Speed: 680 +/- 50 rpm (idling)
Manifold Absolute Pressure: 20-30kPa / 150-260 mmHg / 6-10 inHg (idling)
Throttle Position: about 10% (idling)
Ignition Timing: 10 degrees +/- 2 degrees (idling)
Calculated Load Value: 16-33% (idling); 17-25% (2500 rpm/no load)
Long Term Fuel Trim: -20% to +20%
Engine Speed: 680 +/- 50 rpm (idling)
Manifold Absolute Pressure: 20-30kPa / 150-260 mmHg / 6-10 inHg (idling)
Throttle Position: about 10% (idling)
Ignition Timing: 10 degrees +/- 2 degrees (idling)
Calculated Load Value: 16-33% (idling); 17-25% (2500 rpm/no load)
Long Term Fuel Trim: -20% to +20%
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