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Just received my bluetooth OBDII scanner tool from amazon ($20 USD) and purchased the Torque app as recommended. I will watch the video Ric posted and learn a little more in interpreting data. But I can also take screenshots of live data in the meantime if you guys are interested. With the torque app I have a variety of parameters, please do mention some and I will take screenshots of graphs.
STFT of target value of 0.0 in all RPM and load ranges , unfortunately the refresh rate on the bluetooth is slower then by USB cable as Vee pointed out. See post # 8 for PID's as this term is the one used . The Torque Pro may have some sample configurations to use that my contain this one as this is the final outcome of engine regulation .
Last edited by Lady Penelope; 12-10-2017 at 04:23 PM.
I need to first figure out to make the graph continuous without erasing any data (it keeps the last 35 seconds). But currently have another project so wasn't able to do much today. Here is a 35 seconds of data on STFT. I only revved it once towards the end as seen on the graph as a steep drop at 30 seconds. I will get better data towards end of week I promise!
*I just downloaded an application that let's me record live from my phone. I will use this when I post a video of the STFT data and other parameters if requested. I will do it over a range of all RPM loads etc.
Last edited by jacklynthejag; 12-10-2017 at 07:08 PM.
Your MAF is not reading hardly and if if doesn't the ECU reverts and uses default maps . It should read 1.2 volts on wire Green / Pink at the correct engine idle RPM of 650 . There is a issue of the ETS biasing the ECU to run rich before the coolant warms up but you have that resolved in your warmed up run . Nice turn signal sound as that was really , really , really cool as that keeps it real !!!!
Editing as I get philosophical in respect to the physics of the mater
Last edited by Lady Penelope; 12-11-2017 at 12:13 AM.
Thank you for your input! Any other parameters you would like? I am removing the af ratio, fuel pressure, fuel rail and adding air intake temperature at the moment. Kinda playing with the app and see what else it offers. Do you have this kind of OBDII device to compare?
Yes and I was reading the same 24.2 and would move to 0.0 on throttle up but my software key ( torrent file ) dropped out and now out of commission until I get my confirmed by eyes exhaust leak repaired and new software . Yes a leak ( cracked manifold and or donut gasket seat deformities on the down pipe flange as I have both ) makes a difference on STFT as the O2 sensors see fresh O2 sucked it between pulses causing the ECU to go rich . Vee suggested that it was a vacuum leak and will get to that after the obvious . Keep in mind that there is no fuel pressure or manifold pressure sensor on the X300 so the ELM327 software calculates this from whatever from faulty assumptions and my found incorrect equation input values ( fake news ) so that it can say look at me , I can give you 300 things so it can sell more against the computation . The world is a liars game , just ask the President , Look Mom I'm the President , for now . It's Mueller time
Here is what a Jaguar X300 final refinement AJ16 inline 6 normally aspirated engine should sound like in correct running order negating the special exhaust system : Oh baby , oh baby , oh baby , you gotta turn this up loud !!!! She rocks ( pun intended ) . This one is a Sovereign like my Lady P . but mine has the leaper hood ornament . all the window chrome , and sunroof . Yep you got a Jaguar .
I'd like to get rid of most of those PIDs and focus in on O2 sensors and MAF.
Can you change the sensitivity for those PIDs? The MAF usually does work in the lower limits, so two digits would be handy, and you should never get to 10g/s.
Same for the O2 sensors. If you could graph those, you should see peaks and valleys. I'm not sure that's happening.
Yes it can be rescaled to show better as I used ScanXL and assume other software does the same . Dials are one thing but a line graph presents all the information better in trouble shooting . I'll find a link to an earlier thread that shows both examples of this with the AJ16 engine on the road as it goes through the ranges. That way you will have some values to compare against .Someone came out with a rule of thump with respect to what the MAF reading vs. liter displacement at idle . My theoretical calculations on paper at difference RPM's was way off somehow and my major was in Chemical Engineering . 247. something g/s at 6000 RPM / Wrong as there is a electronic governor limit of 5950 if I remember correctly on the AJ16 ECU . O2 sensors values should be a constant as the O2 levels are regulated to be constant . I could be wrong as there is a wavering signal to keep hunting and adjusting for that ideal outcome of regulation . I never could get my O2 sensors to read as I had a faulty battery charger putting out dirty electricity corrupting the data bus , then the software licence key dropped out .
Last edited by Lady Penelope; 12-11-2017 at 11:45 AM.
I thank you all for the great feedback. I logged my drive this morning and have an excel file attached. This includes two decimal places as requested.
Vee,
MAF sensor and O2 voltage is included plus other parameters. On the 2nd sheet of excel is a graph of O2, RPM, MAF vs time as the x-axis. For the O2 (hard to read with all the sensor data) but under chart filters you may edit which O2 sensor data points you'd like to see. Let me know if you need anything else.
L. Penelope,
I couldn't agree with you more currently going to school for Geology so I feel offended as part of the science community!
Alot of my general course studies where in the Rolla buildings of the original school of mining . We had a new building for ChE courses and labs , running errands and will get you that link later
Last edited by Lady Penelope; 12-11-2017 at 12:06 PM.
I can't tell what the O2 sensors are doing in that compressed graph, but if all four sensors are constantly showing peaks and valleys, I think they might be good as well?
I didn't experience any misfires during this trip. I have to let her idle for a while before she starts to misfire. Currently at work but on my break I'll see if I can log one of the hiccups.
I'll be working on the valve cover gasket and oil change this weekend. I am thinking about posting a youtube video on it for reference. thoughts? But Jacklyn drives me crazy lol the passenger's door handle broke the other day, rear strut is making noise (I only changed 1 last time), driver's door cable is hanging by a couple threads, the clear coat on the hood is peeling like oranges.
Have you looked at the coils in the dark as a warmed up cracked one will arc out to the valve cover and show signs of pitting in the plug wells . Champion RC12YC Plugs gapped to 0.035 ?
Cable part # GNA1101BFCBL , Stuff a cloth in as the rear of the cable retention clip can come all the way off and fall inside the door . Careful not to damage the forward clip and if not you can safety wire it .
There are some temporary fixes to the clearcoat before respray , at least there is a good base color coat . Barclay may work and a good waxing
Last edited by Lady Penelope; 12-11-2017 at 02:23 PM.
I had attempted to barclay and a good wax ( I detailed cars for some time to make some buckaroos) but that didn't help. Here where I live it's always raining and we have high humidity, so every soak I give her the water seeps between the clear coat and base coat, it peels from there. I did see an ad on FB today for $1000 wraps. I think when the time comes I will be wrapping her instead of a full respray. But Ill compare pricing between respray and wraps.
**I replaced all coils with QYL offered on Amazon. Currently I am running E3 sparkplugs (dont have the model with me). I initially tried NGKs and Champions but none of them worked. I had bad misfires and I think that is when I made my first post here
LOL maybe for my GF but not me! hahaha
Last edited by jacklynthejag; 12-11-2017 at 02:33 PM.
Idle graph, on the graph tab notice the red lines that run through the sheet. This is where I noticed a small hiccup and could possibly direct to the source. I do not know how to interpret this data well but some one you might give a hint!
12-10-2017, 11:40 AM
STFT of target value of 0.0 in all RPM and load ranges , unfortunately the refresh rate on the bluetooth is slower then by USB cable as Vee pointed out. See post # 8 for PID's as this term is the one used . The Torque Pro may have some sample configurations to use that my contain this one as this is the final outcome of engine regulation .
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