Didn't occur to me to measure tranny temps. Will definitely give it a check! I'm surprised at your comment about idling and having the vehicle get super hot. Hasn't everyone been complaining about how the remote start on the CRV is useless cause idling doesn't warm it up?Neat. What tranny fluid temps do you see?
Wanna have more fun?.......turn your a/c off, sit idling for a few minutes, you'll see both coolant temps well north of 185*.![]()
Is it a BlueDriver too? Don't hesitate as it really is Plug n' Play ... you'll be seeing data on your screen in no time at all!I just got mine about 10 days ago... but have not yet plugged it and and started using it.
Interesting that LTFT appears to somewhat correlate with vehicle speed. LTFT appears to move less negative at speed, and then as your speed eases up on your trip, it begins to creep more negative. It's probably more about rpm then actual vehicle speed. Could just be coincidence.. but I'll be looking at that more closely when I install mine.
From data I have seen so far.. which is limited... these modern DI engines all appear to run at negative fuel trims. UMRdyldo was seeing this also on his new Subaru.
Didn't occur to me to measure tranny temps. Will definitely give it a check! I'm surprised at your comment about idling and having the vehicle get super hot. Hasn't everyone been complaining about how the remote start on the CRV is useless cause idling doesn't warm it up?
Yep, the thermostat only opens when the engine is at the t-stat operating temp, and the opening varies depending on by how much the engine exceeds it.
It also makes sense that it will rise at idle with the A/C off, because there is reduced airflow over the engine due to being at a stop with only a single fan running. Don't worry about it; it's not considered to be in overheat until it hits 230-240 or so.
Yep... I bought a BlueDriver. After researching all the current choices on the market...BlueDriver looked like the clear winner to me, even though it is a bit more on the expensive side. They really do look to be the best of the best right now for the consumer driver.Is it a BlueDriver too? Don't hesitate as it really is Plug n' Play ... you'll be seeing data on your screen in no time at all!
I could visually see the STFT go more positive with acceleration/speed and be consistent, rather than all jumpy/noisy when dealing with traffic/intersections. It could very well be RPM related. Will have to correlate some more data to see!
So consistently running with 0 to -5% fuel trims (always slightly negative) might just be a normal thing? Good to know, but I'll still see about continuing to experiment to make the CRV as happy as possible![]()
Great analysis and assessment. Particularly about idling being the most inefficient and least clean way to warm a modern vehicle engine. That is precisely what Honda tells owners too (and has been for years) ... start your vehicle and drive your vehicle, no warm-up required.I don't know of any car, with a water cooled ICE, that warms up in cold ambient temps at the same rate as it does in hot ambient. The only way any ICE warms up is by running. Idling is the slowest, most wasteful, dirtiest way to warm up any car.....driving is the quickest, most efficient, cleanest way to warm up any car. I did not say the V will get super hot.......do not know what super hot is, other than very subjective. I said coolant temp will rise well north of 185* when idling, a/c off.
The t-stat does one thing and one thing only.......determine the minimum coolant temp. The other cooling system components along with ambient temp and driving conditions determine maximum coolant temp. I've never noticed only one efan running.......both efans are either running at variable speeds or they are both off. It's all about air flow thru the radiator, not over the engine. The ECU will protect against overheat by turning on the efans. Again, I said coolant temp will rise well north of 185* when idling, a/c off (no airflow thru the radiator). I never used the words super hot or overheat.![]()
The blue led turns off. But I suppose the only way to know for sure is to measure current drain with a meter at the battery (a little tricky doing from OBD2 connector but it can be done). I've heard really good things about BlueDriver customer support, so it wouldn't hurt to just ask them.One thing I am not yet sure about..... does the unit power down when you turn off your vehicle, or does it present a parasitic draw on the CRV? I'd like to just leave it plugged in, but I don't want a notable parasitic draw as I drive a lot of short trips and it's a challenge to get the CRV to keep the battery above 95% charge state.
Thanks!The blue led turns off. But I suppose the only way to know for sure is to measure current drain with a meter at the battery (a little tricky doing from OBD2 connector but it can be done). I've heard really good things about BlueDriver customer support, so it wouldn't hurt to just ask them.
However I'm almost sure the unit gets completely turned off when the engine is off. Reason being that I cannot connect to the unit unless the engine is on. This was is actually a bit frustrating at first, because I wanted to get coolent temps before engine was on. BlueDriver cannot connect via Bluetooth to phone while CRV is even in accessory mode 1 nor 2. I can only assume it's because it's completely turned off and only turns on when engine is on.
................I suppose it is possible a resident "old school" contrarian will drop by and try to lecture you that you have it all wrong though.![]()
FYI I have a scan gauge and it shows tranny temps above 200*F normally. I have seen 240F when loaded pulling a long incline. Also quite warm outside.
The CRV does feed power to the obd2 port, and unless there is a physical switch on the device it will have a small power draw while it is waiting to wake up. Think like an amp power on signal wire wakes up an amp from low power mode. Amps can still drain batteries.Thanks!
Yeah.. it will boil down to whether the CRV feeds power to the OBDII connector when it is off, or if the BlueDriver has a power down mode when it detects the vehicle is turned off. Your results suggest that it is... and that would be consistent with other voltage ports in the CRV being turned off when the vehicle is turned off.
So I will do some testing and research on power state with the vehicle off. If I find a concern.... I can always go with one of these: https://www.amazon.com/Tonsiki-Fema...691&s=gateway&sprefix=obdii+ex,aps,194&sr=8-7
Thanks. Good to know, one less thing to verify.The CRV does feed power to the obd2 port, and unless there is a physical switch on the device it will have a small power draw while it is waiting to wake up. Think like an amp power on signal wire wakes up an amp from low power mode. Amps can still drain batteries.
I agree, and Lemur claims they have such a mode in the BlueDriver. I just need to spend a bit of time to verify it is true.. and what level of low power parasitic it actually is. Anything under 10ma should be fine.If it's well designed it should have a very well programmed low power mode.
I think BlueDriver goes into low power mode if it cannot communicate with the CRV across the internal bus... because the computer(s) in the CRV are in a low power state and do not communicate. Since this is one of the more premium of OBDII bluetooth readers... hopefully they did a good job with powerup/powerdown software and that it is not glitchy in any way. Since it's been out for a number of years now, and has received numerous firmware updates.. I do expect it to be relatively bug free now days.The blue led turns off. But I suppose the only way to know for sure is to measure current drain with a meter at the battery (a little tricky doing from OBD2 connector but it can be done). I've heard really good things about BlueDriver customer support, so it wouldn't hurt to just ask them.
However I'm almost sure the unit gets completely turned off when the engine is off. Reason being that I cannot connect to the unit unless the engine is on. This was is actually a bit frustrating at first, because I wanted to get coolent temps before engine was on. BlueDriver cannot connect via Bluetooth to phone while CRV is even in accessory mode 1 nor 2. I can only assume it's because it's completely turned off and only turns on when engine is on.
In another forum someone mentioned 6.5ma, but not sure where they got the info. I've sent BlueDriver a request for specs on this. Hopefully they'll respond...Anything under 10ma should be fine.