Finally AutoVE in progress

[Gelf VXR]

Let the tuning begin....

[stigmundfreud]

and let the current temp fluctuations mess with your mind

1.0, 1.0, 1.0 then 0.96 wtf, it was spot on last night!

[Gelf VXR]

I'm logging both banks, so I'm using average figure of both banks.

Ive got my AFR reading one side just above and the other just below stoich, rather than aim for one on the nail and the other .4 an AFR point off, i have them both .2 off.

I know some people tune to the lean bank.

What WOT AFR are you commanding, I'm using 13.1:1

Next I'm looking at PE throttle seting activation, lowering it for mid range throttle torgue 13.5:1 AFR

Then Spark advance, how far did you manage to advance?

[stigmundfreud]

I went 12.5 I think, will need to look as I cannot remember, 12.5 or 13. I am having issues though getting stable read outs. I get things 1.0 then the next day log and they are 0.98 etc I'm guessing its the changable weather at the minute but one thing thats been bugging me lately is that the 15kpa cells always read around 0.90 no matter what you do - so the ve, if I followed it, is almost zeroed in those cells. Doing some long logging today to hopefully bring it all back into line during teh same weather conditions

[Gelf VXR]

stigmundfreud said:

I went 12.5 I think, will need to look as I cannot remember, 12.5 or 13. I am having issues though getting stable read outs. I get things 1.0 then the next day log and they are 0.98 etc I'm guessing its the changable weather at the minute but one thing thats been bugging me lately is that the 15kpa cells always read around 0.90 no matter what you do - so the ve, if I followed it, is almost zeroed in those cells. Doing some long logging today to hopefully bring it all back into line during teh same weather conditions

I dont think it will ever be that perfect, but compared to the stock VE map, mines well different.

Do you record a huge spike at idle?

Are you black box logging with out the PC? I don't see the BEN's pid when using just the V2 for Auto VE?

[Gelf VXR]

I am running into problems with my two LC-1's which stop functioning when I'm trying to log high map/rpm cells.

If i stop and restart the process the LC-1's continue to function normally.

Do you find this?

[Gelf VXR]

stigmundfreud said:

I went 12.5 I think, will need to look as I cannot remember, 12.5 or 13. I am having issues though getting stable read outs. I get things 1.0 then the next day log and they are 0.98 etc I'm guessing its the changable weather at the minute but one thing thats been bugging me lately is that the 15kpa cells always read around 0.90 no matter what you do - so the ve, if I followed it, is almost zeroed in those cells. Doing some long logging today to hopefully bring it all back into line during teh same weather conditions

RedHardSupra made a spread sheet for dialing in VE for the weather conditions of the day

[stigmundfreud]

I saw his spreadsheet I might take a look though I plan to move to OS3 and use the a0008 and 14 tables (from memory).

I ended up having to upgrade my firmware to teh lateset from innovative. What I did find during the summer was that obviously if weaather is ok you tune to that ambient temp and that gives you teh basis. Today once i get it as accurate and stable as I can I plan to move over to OS3 to use the temp scalers in that instead. That way at todays ambient its ok then I can just adjust the fueling based on IAT/AT

To be honest I'm happy it running around 0.98 as its not damaging anything but the 15kpa cells is doing my head in. I never log at turn on/turn off as you get weird results, I only start logging after the car has cranked up.

When you say both LC-1s stall, does log works throw an error code?

[Gelf VXR]

stigmundfreud said:

I saw his spreadsheet I might take a look though I plan to move to OS3 and use the a0008 and 14 tables (from memory).

I ended up having to upgrade my firmware to teh lateset from innovative. What I did find during the summer was that obviously if weaather is ok you tune to that ambient temp and that gives you teh basis. Today once i get it as accurate and stable as I can I plan to move over to OS3 to use the temp scalers in that instead. That way at todays ambient its ok then I can just adjust the fueling based on IAT/AT

To be honest I'm happy it running around 0.98 as its not damaging anything but the 15kpa cells is doing my head in. I never log at turn on/turn off as you get weird results, I only start logging after the car has cranked up.

When you say both LC-1s stall, does log works throw an error code?

The leaner of the two banks always goes first which makes me think its over heating and shutting down. I havn't got out and looked at the leds yet doh.


The manual stated putting heat sinks on, but i was concerned about an air tight seal. I'll look at clamping something to the sensor rather than between sensor and exhaust?

[stigmundfreud]

manual suggests it but a lot of expericend users against it as the recommended version would increase the temp at a directed point

I located the LED inside the center console so I can take a quick gander also running long tubes I have, touch wood, not had an over heat problem.

I dont do the black box as it isnt (or wasnt) fully released when I last looked. There are a lot of PIDs currently (last i looked a few weeks bcck it wasnt fully released yet). I'm not going to black box until I can start logging the digital input which will mean I can then go back to closed loop

[crisisjez]

Just out of interest stiggy, how many man hours do you recon have gone into your tune?
(I know youv`r been learning as you go)

[Gelf VXR]

stigmundfreud said:

manual suggests it but a lot of expericend users against it as the recommended version would increase the temp at a directed point

I located the LED inside the center console so I can take a quick gander also running long tubes I have, touch wood, not had an over heat problem.

I dont do the black box as it isnt (or wasnt) fully released when I last looked. There are a lot of PIDs currently (last i looked a few weeks bcck it wasnt fully released yet). I'm not going to black box until I can start logging the digital input which will mean I can then go back to closed loop

I'm thinking about staying open loop speed density, (Fitting stand alone IAT sensor) removing the MAF, its a restriction and fitting a 100mm CAI through the inner wing under the wheel arch with air scoop under the spoiler

[stigmundfreud]

crisisjez said:

Just out of interest stiggy, how many man hours do you recon have gone into your tune?
(I know youv`r been learning as you go)

dunno even onces its sorted I like to keep an eye on things anyway. I'm revisiting the tune at the minute after getting cats put in for my MOT so just getting it sorted for that.

[ringram]

Nice to see you chaps having fun
I like to trigger PE on 80kpa MAP and not TPS. Makes sure engine is loading before throwing more fuel in. I like 13.1:1 or there about too, by all accounts best for power NA, I did some messing around on Vixpy's dyno for a couple of hours play with fueling and timing.

If you are going mafless Id seriously consider an otrcai. Nice short direct shot into the intake.

Open loop speed density is nice, better off idle throttle responce, plus you can run slightly lean at low loads rather than stoich. Mind you for MOT you need to be 14.4-15.0 (0.97 to 1.03 lambda)


Oh forgot to say, there has been some recent comments that the LC1 likes to be earthed to the engine and not the body of the car. Seems more accurate and reliable.

Edited by ringram on Wednesday 27th February 08:00

[stigmundfreud]

I'm earthing via the pcm port the old o2 used. One strange behaviour I hadn't noticed until now was the 15kPa cells always, regardless of value in VE, read 0.9 or there abouts. Running blind (as I hadn't noticed the behaviour) I was applying the VE modifications and gradually the VE cell values would lessen and lessen and lessen but the BEN would always log 0.9, 0.92, 0.88 etc but typically very close to 0.9, obviously this eventually had an effect on low load fueling so adjusted the 15kPa cells to hold HSV's values. This smoothed out pull under low load.

Last night everything zero'd in around 1.0 or 1.01/2, 0.99/8 but most cells 1.0 so happy with the tune, however, 15kPa cells again were reading constant rich, however, I had reverted the 15kPa cells to the HSV tune values so something is not right with logging <20kPa.

Any ideas? I've updated my filter to now remove the 15kPa cells to stop me adjusting those whilst tuning. I'm wondering now if it could be the timing table for 15kPa but if you have any thoughts be good to hear them

[stigmundfreud]

Gelf forgot to say, i found slowing the LC-1's down helped a lot, think I settled on 1/3 second for updates though since upgrading the firmware to 1.10 I'm not sure thats taking effect! Also get those status LED's in the cabin!! Also, you probably have, ensure your LC-1 outputs are set the same as in the LC-1 guide in the tune tool. Another thing worth looking at is calibrating the scanner (cannot, really cannot wait for digital input to work!). I had a drift of about 0.5 so calibrating took care of that.

Jez, looked on my logger stats last night, about 18 hours worth of logging since I got the tool last year but I only upgraded to the tune license mid way through.

[ringram]

dfco, cracker and follower all mess with airflow especially at low loads. I dont bother too much down there, just sort out dfco to cut fuel and be done with it. Idle is 35-40kpa anyway so any lower is usually always decel. You can try just cutting fuel under say 30kpa and see if that helps remove any need to mess about down there... plus save fuel.
You will find minimim injector pulse widths stopping you lowering fuel any more.

[stigmundfreud]

will see how it tracks once dfco is enabled, I used the updated dfco settings from the forum = much smoother.

When you set your PE to 80 did you simply use the commanded table to command the fuel rather than the PE table?

[ringram]

Yes, it takes the richest setting of open loop table, pe and whatever other modifiers.
So with COS3 etc, just use b3647 or whatever it is to command.
I set PE to 13.4:1 flat as a backup.

[stigmundfreud]

I just bloody knew I'd see the fabled "COS3" in that reply, I won a bet with myself