The ETB should still work. It's disabling itself because it detected an inconsistency between the primary and secondary (redundant) position sensors.
Try turning the ignition on, and pressing the "auto calibrate TPS 1" button and see what happens.
The ETB should still work. It's disabling itself because it detected an inconsistency between the primary and secondary (redundant) position sensors.
Im not sure, but will try tomorrow evening.
Hmmmm, that makes sense. How much of a variance is allowed between the two sensors? Ill try that again tomorrow after work. Thanks!
The ETB controller doesn't store any history about errors, so I don't think that will have an impact.
I think it's currently 5%. The debug channel you picked will show the split between the two sensors on the gauge called "TPS 1 Pri/Sec Diff", which I why I asked for that. With the ignition off, yours were different by <0.5% (good), but with the ignition on, the split is ~6.6%.
it checks every time the sensors are updated - currently 500 times per second, if the throttle is moved or not. And as far as the ECU was concerned, your throttle actually did move when you turned the key on: the voltages changed because the supply voltage went from 4.whatever volts to a regulated 5.0.
Sweeeeet! Getting to idle is the hardest part, everything else is "easy"!
Never mind, I just verified that seems to be the case.deaner wrote: ↑Sat Mar 06, 2021 5:44 pmIf I'm understanding this right, the "open loop idle position" is the percentage of "ETB Idle range?" Example, "ETB idle range is set to 5% and "open loop idle position" is set to 75%, the throttle will be physically open 3.75%? Its basically replicating an idle screw yeah?
I can post something up later this evening when I get home from work. Information is scattered all over the place and FW seems to update so quickly, it's tough to find certain things sometimes, so I just ask.
yeah, the 2.7k default is correctAndreyB wrote: ↑Mon Mar 08, 2021 5:58 pmI do not think that FW changes at all these days to be honest, not in the areas which would affect fuel calculation.
I have a feeling the we use "standard" SD without explicitly documenting it?
I assume Proteus default config already has correct bias value in it, I would assume it to be 2.7K?
What car, year, engine,?deaner wrote: ↑Mon Mar 08, 2021 5:17 pmTinkered with the tune a bit and have a pretty steady idle. The IAT is in the manifold so I'm seeing weird stuff with VE. Where can I find the fuel calculations(equation) for proteus? I havent had a chance to dig through the .ini yet, figured it may be posted somewhere but I cant find it. Idle VE numbers seem awfully high(90-100), but I'm unsure if it's the way the fuel calcs are done or if I'm just seeing hardcore heat soak . I'm done messing with it until I can change the oil, hopefully in the next couple of days I can get it on the street! Getting some low load/crusing data should tell me right away.
Also....bia resister for temp sensors. Can someone tell me what's in the proteus? Coolant temp seems to be reading right when cold in regard to ambient air temps but IAT doesnt match. I 'know' scaling is correct as its straight off my other ecu which reads correctly. Both IAT and CLT are set to 2700 as default.
Thanks!
Stuff to check on:deaner wrote: ↑Mon Mar 08, 2021 5:17 pmIdle VE numbers seem awfully high(90-100), but I'm unsure if it's the way the fuel calcs are done or if I'm just seeing hardcore heat soak . I'm done messing with it until I can change the oil, hopefully in the next couple of days I can get it on the street! Getting some low load/crusing data should tell me right away.
Please confirm that you speak Celsius.
I've see a lot of debate on that point, here's one post I found helpful:
One point to add to it is ethanol is expensive so I would guess they add as little as they can and meet EPA rules and 10% is the max they are allowed, not the actual % and probably not the norm so stoich is not lower than 14.1 and with pump gas not higher than 14.7 but I have no idea where in that range it falls....and the error will wash into the VE table during tuning. I try to stick to 1 brand fuel because I tend not to use closed loop.Based on this, Stoich for pure 93 octane gasoline is 14.7, So on 93 octane with 10 percent Ethanol, my AFR is 12.8 at 6500 rpm and has a lambda value of .90/12.8 AFR because it has 10 percent ethanol (14.13 Stoich). .90 x 14.13 = 12.8 AFR on E10. .90 x 14.7 = 13.2 AFR on 93 octane.
If I run 100 octane, Stoich is 13.9 and I have a 12.8 AFR at 6500 rpm, it should compute like this. 12.8/14.7 x 13.9 = 12.1 AFR. 12.1/13.9 = .87 lambda. It helps a lot. I go from a 12.8 AFR on E10 and a .90 lambda to a 12.1 AFR and an .87 lambda. At 5500 rpm on 100 octane, I'm at 11.7 AFR, with a .84 lambda. I have Sunoco 260Gt 100 octane available right up the street (it 'aint cheap). This definitely affects your safety margin.
I pulled this fuel information off of a tuner site.
"Ever wonder if your airfuel will change with race gas? The answer is; Yes. Real gasoline has various different Stoich points due to the blend, how much ethanol is in it, etc. It is somewhere between 14.1 and 14.7. Finding the information on race gas isn't easy. It is not posted anywhere on the internet that I have found. VP does not publish it, nor does Sunoco (TurboBlue)."
"Several weeks ago I got in touch with the chemist at VP and got all the Stoich points of their fuels. Last week I got in touch with a Sunoco chemist and got the data from him as well. When I asked the guy from Sunoco why they don't publish the information on the TurboBlue website he said, "Eric, you're right, Stoichiometry is important. Fact is many people have no idea what it is; kudos to you for knowing."
"Unfortunately, many folks we talk to think the Stoichiometric air/fuel ratio is where they should set their fuel system at wide open throttle. So we are torn about posting or not posting Stoichiometry data because of that potential problem. Shocking right? Especially when you see how different the fuels are; Here is a list of the ones I have gathered."
Sunoco MO2X UL: 14.5
Sunoco 260 GTX: 14.4
Sunoco 260 GT: 13.9
Sunoco 260 GT Plus: 13.7
Sunoco Standard: 14.8
Sunoco Supreme: 14.9
Sunoco MO2X: 14.5
Sunoco HCR Plus: 14.8
Sunoco Maximal: 15.0
Sunoco MaxNOS: 14.9
Turbo Blue Unleaded (100 octane): 13.9:1
Turbo Blue Unleaded Plus (104 octane): 13.7:1
Turbo Blue 110: 14.7:1
Turbo Blue Advantage: 14.9:1
Turbo Blue Extreme: 15.0:1
VP Street Blaze 100: 14.16
VP C10: 14.53
VP 110: 15.09
VP C16: 14.77
VP MS109: 13.41
"Back to pump gas.... While I had the Sunoco guy's ear, I tried to get an answer about the Stoich of their fuel and to find out how much actual Ethanol is in it, when the label says up to 10%... Here are his comments..."
"I know plenty about pump gas, enough to say that there is no useful Stoichiometry data on pump gas. Composition varies WAY too much, regardless of brand/refinery/etc... especially on the lower octane grades. But I can tell you that Sunoco 94, which is very hard to find these days, will contain some ethanol."
"Per the first sentence, it will depend on the blend though. I would go out on a limb and say it is nearly 10% most of the time (keep in mind 10% is the max allowed by law). Street gas blends change all the time thanks to environmental requirements (fed/state/local), seasonal adjustments, and price pressures."
Not sure. The last Pres was handing out a lot of waivers to refiners who were claiming cost but straight up $/gallon you're right. It could just be oil companies are in the oil business and make profit on the oil products vs paying for the ethanol. They also change the mix by season, winter fuel is really close to the 10% I'd bet. Don't know but I've never seen anyone commit to a number other than under 10%.