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BlackMamba,
Curious to see any graphs you have from your diagnostics.
I actually got my car fixed a year ago by my local mechanic. So after years of a painstaking ordeal, I had air bellows intake hose, shredded and was causing an air leak which resulted in my car to run lean.
Additional findings also were that sparkplugs were not replaced at the time during the dealership (they were worn at the tip), and few of my ignition coils had to be replaced. I also had a timing belt replaced by the dealership and my mechanic noticed the timing on my timing belt was not properly adjusted.
Valves were adjusted also as part of this work.
Did you have a chance to see if your sparkplugs have any traces of leaking oil?
-Chris
I logged another trip today (see attached for Jan 29th), and also made corrections to the original attached PDF for Jan 28th.
So I logged some data and graphed fuel trims (short and long term). Attached is the PDF
Tried to interpret the data myself it seems that based on the short term fuel trim, fuel is running pretty lean on idle? I drove 4 times today to get as much information.
Let me know what you’re able to glean here.
I can’t attach the excel file, shoot me a message if you want me to email to you.
Thanks,
ChrisI am using the Torque app on my android.
I’m not sure if the app has capability to store an error code freeze frame. I don’t think it has a live misfire cylinder monitor, either.
On the app, I took a freeze frame right after I scanned for fault codes, which I guess it isn’t the correct data to look for?
What is the cost of purchasing a tool that has those features?
What should I do at this point if my current scan tool doesn’t have a live misfire monitor nor an option for an error code freeze frame? How should I approach this diagnosis?
I am using the Torque app on my android.
I took the freeze frame data right after I ran the scan for codes. I don’t think the app has capability of taking an error code freeze frame nor live misfire monitor.
Apologies as I’m trying to understand your question. How would you like for me to take the data?
Take the freeze data when the CEL is not on? I should not clear the codes stored, right?
Thank you so much for offering me help by the way.
So I took a few freeze frames in the past and I’m not sure what I’m comparing in terms of what numbers are considered baseline vs. suspicious discrepancy.Cold start Jan 22, 2017:
Fuel Status = 0 byte
Engine Load = 47.843 %
Engine Coolant Temperature = 104 °F
Fuel Trim Bank 1 Short Term = 6.25 %
Fuel Trim Bank 1 Long Term = 7.031 %
Fuel Trim Bank 2 Short Term = 0.781 %
Fuel Trim Bank 2 Long Term = 6.25 %
Intake Manifold Pressure = 6.962 psi
Engine RPM = 1,011 rpm
Speed (OBD) = 0 mph
Timing Advance = -6 °
Intake Air Temperature = 98.6 °F
Mass Air Flow Rate = 10.73 g/s
Throttle Position(Manifold) = 17.255 %
Relative Throttle Position = 7.451 %Dec 23, 2016:
Fuel Status = 0 byte
Engine Load = 43.137 %
Engine Coolant Temperature = 49 °C
Fuel Trim Bank 1 Short Term = 13.281 %
Fuel Trim Bank 1 Long Term = 6.25 %
Fuel Trim Bank 2 Short Term = 7.031 %
Fuel Trim Bank 2 Long Term = 3.906 %
Intake Manifold Pressure = 6.237 psi
Engine RPM = 900 rpm
Speed (OBD) = 0 km/h
Timing Advance = 10 °
Intake Air Temperature = 32 °C
Mass Air Flow Rate = 7.35 g/s
Throttle Position(Manifold) = 15.686 %
Relative Throttle Position = 5.49 %Nov 8th, 2016 (I think this was on 2nd crank of ignition):
Fuel Status = 0 byte
Engine Load = 30.196 %
Engine Coolant Temperature = 62 °C
Fuel Trim Bank 1 Short Term = 12.5 %
Fuel Trim Bank 1 Long Term = 7.812 %
Fuel Trim Bank 2 Short Term = 8.594 %
Fuel Trim Bank 2 Long Term = 9.375 %
Intake Manifold Pressure = 4.351 psi
Engine RPM = 789 rpm
Speed (OBD) = 0 km/h
Timing Advance = 9.5 °
Intake Air Temperature = 47 °C
Mass Air Flow Rate = 4.26 g/s
Throttle Position(Manifold) = 14.118 %
Relative Throttle Position = 2.745 %