ECUflash CeddyMod v1 (EcuFlash)

[Narco]

I have some stuff coded for a Inverted CAS Patch, but need someone local to test it.

95-96 are the only CAS with the goofy inverted signal. All other 4G63 CAS are "normal", 1990 1G to Evo9s.

Link needs the Inverted CAS checked because it uses a 95 ecu, which expects a 95 CAS signal.


A 98/99 ecu is fine with a 1G CAS. The only issue that may arise, is if you don't use the standard 5 degree base timing, you can get misfire codes.

Which can be disabled with the Ceddy mods right?

I timed my car for 5deg base timing, but still get idle misfires due to running e85, so I have the misfire CEL disabled in link.

 

[Ceddy]

Which can be disabled with the Ceddy mods right?

I timed my car for 5deg base timing, but still get idle misfires due to running e85, so I have the misfire CEL disabled in link.

Correct, the MisFire codes can be disabled.

I haven't run E85 myself, but heard of some of the Evo guys raising timing a few degrees in the idle area of the timing map. Changing the big rectangle of 5* to 7*, might be something to try if it is giving you issues.


Edit:

Didn't see you are running Link, this is a EcuFlash thread. You are getting Misfires because you are using a 95 ecu without a 95/96 CAS, not from E85.

98/99 ecus have no such issue with 1G or 97-99 CAS.

95 ecus have the Misfire problem because they expect a 95 CAS's inverted signal.

 

[jrohner]

but still get idle misfires due to running e85, so I have the misfire CEL disabled in link.

Not sure what that has to do with anything, but anyways the random misfire check can be disabled by changing 2 1's to 0's.

 

[GSXeclipsePSI]

When removing the rear o2 and running your wideband through its input and disabling it in ecu flash do you have to ground the wires from the rear o2 to keep getting your fuel trims updated? Right now I have none, you said Evo guys had the issues when not disabled correctly.

Should I re enable the rear o2 and ground the 2 ground wires since I have a signal wire going into the ecu?

 

[Ceddy]

When removing the rear o2 and running your wideband through its input and disabling it in ecu flash do you have to ground the wires from the rear o2 to keep getting your fuel trims updated? Right now I have none, you said Evo guys had the issues when not disabled correctly.

Should I re enable the rear o2 and ground the 2 ground wires since I have a signal wire going into the ecu?

The rear O2 should disabled and simply disconnected.

Having the WideBand feeding the rear O2, could possible cause problems but not sure.


There are a few conditions that will cause the Trims to not work:

All must be true:

Coolant temp >= 180F
Intake air temp < 133F
Baro >= 22.9 inHg
Baro <= 31.6 inHg


Trims disabled if one true:

Throttle position too high (varies by RPM)
Airflow too low (units are tricky, but it's very low)
Coolant temp < 51F
Coolant temp > 228F
The O2 sensor did not switch around 0.5v for over 128 seconds while running in closed loop mode. In that case, the ECU locks itself in open loop mode.

All of the following have to be true for a full 5 seconds. If any single one is not true even for a millisecond, the timer starts over and trends in STFT will *not* be moved into LTFT.


For more info see ECMTunings Wiki -> fueltrimupdatepoints [ECMTuning - wiki]

 

[Narco]

Correct, the MisFire codes can be disabled.

I haven't run E85 myself, but heard of some of the Evo guys raising timing a few degrees in the idle area of the timing map. Changing the big rectangle of 5* to 7*, might be something to try if it is giving you issues.


Edit:

Didn't see you are running Link, this is a EcuFlash thread. You are getting Misfires because you are using a 95 ecu without a 95/96 CAS, not from E85.

98/99 ecus have no such issue with 1G or 97-99 CAS.

95 ecus have the Misfire problem because they expect a 95 CAS's inverted signal.

I realize that... I still have my '98 ECU, and the Tactrix 2.0 cable. I plan to swap out my Link setup to do some testing with the EcuFlash software. I'll probably be flashing 3 different cars/setups eventually.

I have my CAS signal inverted in Link, so everything is cool there. I'm pretty sure my idle issue is due to the difference in idle latencies of my 1150's and using E85. The misfire goes away when I use E50 or gasoline.

What's the status on ECU controlled boost?

 

[GSXeclipsePSI]

So having it disabled and running you wideband signal thru the rear o2 will not make it disable trims?

I'll have to keep working on this, I want to finish tuning the injectors

 

[Ceddy]

So having it disabled and running you wideband signal thru the rear o2 will not make it disable trims?

I'll have to keep working on this, I want to finish tuning the injectors

I would look at the other conditions first like Coolant Temp, Intake Air Temp, and Baro. If any of those are out of range it will turn the Trims off.

Also the Front O2 must be cycling properly. It should be bouncing from around .1 to .9 every second or so.


I have not looked at the Rear O2 Cat Efficiency code closely, there is a chance running a signal to it, even when its disable could possible have some undesired effect. If you follow the Evo ecu stuff, they cannot simply turn off the Rear O2, and need to use simulator patches, we could possible be running into something similar when a wideband signal is hooked up.


But I would say with 99% certainty that your problem is one of the above sensors is out of range or your Front O2 is not cycling.

What's the status on ECU controlled boost?

Ecu Boost Control will be a version 2.0 option. It is very similar to Tephra's Evo Ecu Boost Control with control by Gear and RPM, as well as control by TPS. And will feature Boost Reduction by Knock and some other neat features.

I have a few people testing 1.9 now, and no major problems have been reported, so I expect to release it very soon. 2.0 I expect to be ready around mid spring.

 

[GSXeclipsePSI]

is there a different way to tune the legacy of the injectors other then fuel trims?

 

[jrohner]

is there a different way to tune the legacy of the injectors other then fuel trims?

Wideband if running full-time open loop. Get the injector size right with WOT pulls, then cruising to get the latencies right. IF your MAF settings are correct, you should be able to get things really close pretty quickly. Just make sure you're fully warmed up so the temp enrichments aren't throwing you off at all.

 

[GSXeclipsePSI]

I'm getting the devils own dvc-30 next week how is tuning going to work with the progressive kit and ecu-flash. I have no clue how things look with meth injection.

 

[jrohner]

You'd probably just fudge your fuel maps to get your AFRs in line. It would be best to have it switch maps when the meth comes on, but that's not something that's been worked on yet with this ECU AFAIK. I would actually like a way to control meth injection in the ECU instead of using a separate controller (I probably won't ever use meth on this car though anyways).

 

[GSXeclipsePSI]

Yea map switching via MAP sensor would be crazy.. I would be excited for that, I might even pay for that!
Don't want to give ceddy any ideas

Guy at devils own told me on the phone today that some people try to use meth injection as a fuel source, he said the real reason to use meth injection is for cooling of the intake air charge and cool the combustion chamber. So injecting meth is going to raise my octane of course so my ability to gain more timing is where I want to make changes. Am I really going to be changing my A/F Maps leaner. Whats the target A/F ratio on meth. Can I change my load about 100 to reflect my target, or will I have to change injector scaling. I'm set at 11.0 above 100 load.

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So tonight after driving around at the lowest possible throttle I could get anyway with I got a CEL in regards to my fuel trims, its what I been waiting for.

P0125 - excessive time to enter closed loop fuel control

So now I now maybe my temp sensor or 02 is bad. But I do have a race thermostat thats 180 degrees and it looks as if the front 02 sensor is cycling. Any other ideas before I dump $90 on a new 02 sensor?

Is there any setting in ceddy mods that I might have wrong, ceddy set mine up for no emissions and rear 02 removed. I can post screen shots of my periphery bits

 

[the_mork]

Search around for better pricing is my first suggestion. I got a direct replacement o2 sensor for $57 with my discount at my local auto store but I know I've seen the same sensor for similar prices on the internet. The sensor for my Jeep ran me about the same and I got it from rockauto.com

As for whether or not your o2 is the issue I wont go into that comprehensively for fear of guiding you down a wrong path because it isn't my area of expertise but if it is cycling properly I would check other things first. Take a log of all the sensors Ceddy mentioned and post it here. Get the car warm first then take a couple minutes of log while driving.

 

[jeff24680]

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So tonight after driving around at the lowest possible throttle I could get anyway with I got a CEL in regards to my fuel trims, its what I been waiting for.

P0125 - excessive time to enter closed loop fuel control

So now I now maybe my temp sensor or 02 is bad. But I do have a race thermostat thats 180 degrees and it looks as if the front 02 sensor is cycling. Any other ideas before I dump $90 on a new 02 sensor?

Is there any setting in ceddy mods that I might have wrong, ceddy set mine up for no emissions and rear 02 removed. I can post screen shots of my periphery bits

I have this exact same code after about 16 minutes of driving at light throttle or basically staying OUT of Closed loop. I have been battling and lean idle and cruise AFR problem. I am still trying to figure out maf scaling, smoothing, and injector timing, and scaling.

I was doing this to see if my Fuel trims would change and they did not. I know at idle my STFT is around 8-10% and at 270-290HZ in cruise I am also at 8-10%. I am not sure as to how and go about adjusting the maf scaling/smoothing or injectors or whatever it is I need to do in order to get my afrs back around 14.7.

**Last time I changed my maf scaling numbers I flooded my engine *****


I have evo 8 injectors, latest ced mod, I have disabled my rear o2, along with all emissions. I have BLT to 20psi and held for over a minute. Vacuum at idle is 17 in/hg

 

[kiddsm95]

What are the scaling and latency numbers for Evo 8 injectors anyways?

I'm running E8 560cc's, rear 02 turned off, P0136 off, P1400 off and I have the same issue with frozen fuel trims, and it appears that I'm not the only one.

 

[GSXeclipsePSI]

I guess I could shop around for 02's but I just get them at the dealer since I have a friend there, but they switched owner and now there $90.
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My idle is about 17 also @ 1025rpm idle. This is cause the 272s for me are too much @ below 1000rpms.

I have not messed with the MAF scaling at all. My AFC @ idle are around 16-17 and I seem to be good in part throttle cruise they bounce around 15-14.

I will log front 02, Coolant Temp, TPS, Baro and IAT and my trims. As of last night they are still blank.

If someone could help me with a better understanding, I needed to scale my injectors to 509's I was told when I bought them they were 680 PTEs. Now I have my battery table set up for 680s and want better starting point, what should I use as base settings since maybe these are not 680s.

Am I wrong to assume that without the closer battery voltage settings for the injectors I have could cause tuning problem? And the battery voltage settings have nothing to do with the trims not adjusting.

Sorry to ask the questions over but I'm trying to get a better understand of this whole tuning thing with engine management, I only started paying attention to this back when ceddy mods thread started, so before that I know nothing but pocketlogger and a AFC.

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Also when I inject meth, I pick my meth injection starting point and my full injection point. Then add my boost I'm trying to reach, LOG and look for my point where I need to remove fuel where my LOAD starts to get Meth.

So say above 100 load when I start injecting meth I would start taking my 11.0 AFR leaner but should I wait til full pressure meth? I'm will be running the progress injection.

What AFR is the target. I know there are threads I haven't gotten to fully read that tell you the suggested AFR for meth.

 

[kiddsm95]

From what I've been able to find the stock settings for an Evo Viii (560cc/min) are as follows:

Per Evom.net

Scaled 513cc
Voltage: ms
4.6875 3.312
7.03125 1.68
9.375 1.032
11.7188 0.672
14.0625 0.432
16.4062 0.264
18.6768 0.144

However according to this site Injector-Rehab - Fuel injector cleaning, flow testing, and complete blueprinting service. latencies are as follows:

Stock DSM 450cc:
Voltage: ms
10 1.00
11 0.81
12 0.67
13 0.55
14 0.45
16 0.32

Evo Viii 560cc:
Voltage: ms
10 1.13
11 0.97
12 0.85
13 0.75
14 0.66
16 0.58

I've also read that the latencies numbers published for injectors are sometimes vehicle specific. Since the Evo Viii and 2G DSM both run 43.5 psi base fuel pressure shouldn't the scaling and latency numbers be the same?

 

[Ceddy]

GSXeclipsePSI, if your Front O2 is cycling, there is no need to buy a new sensor.
Just get a 1 minute log at idle with items I posted above, and you will be abble see whats wrong. Or post your log.


Kiddsm95, the Evo5/6 is a better place to grab latencys for the Evo 560s. The Evo5/6 use the same ecu as the 98/99s hardware wise, so the injector drivers will be the same.

Evo5/6
3.312
1.68
1.032
0.72
0.48
0.36
0.24

Also from my experience, the Evo 560 are underrated, and flow more in the 570s.

But you need to confirm size thru your wideband, its normal in many parts of the country for 10% ethanol to be added to gas, things like this are going to effect your sizing.




In development news, I have been working with EvoScan to get MapTracer working for us. Latest version he sent me works, I expect he will have public release in coming weeks. One bad thing is the EvoScan logging .xmls have been change, so I will need to make new ones.

You can display your Fuel and Timing maps, then can display a item like KnockSum to show what cells you are knocking in.

You can also edit your maps, to remove timing or add fuel in cell you are knocking. Should make tuning easier.

You must be logged in to view this image or video.

 

[GSXeclipsePSI]

So I woke up thinking I should check my Fuel Pressure. Pulled the vaccum line to see I was at 50psi.

I readjusted to 43-44psi and logged. I got 12.3's. So I scaled the injectors down to 470 to get them to 10.8-11.3 afr.

So then I notice my IDC on my logs is 0

I'm missing something here, I know we need maybe a Ecuflash tuning help thread for stuff like this but I'm lost sometimes.

I will do a log @ idle in a few and post it up

Ok here is my log and ecuflash settings
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Download EvoScanDataLog_2010.03.16_18.06.15.csv from Sendspace.com - send big files the easy way LOG

BONUS 3rd Pull Video
--------------------------
<a href='http://www.sendspace.com/file/jbpuan'>http://www.sendspace.com/file/jbpuan</a>

 

[Ceddy]

GSXeclipsePSI can you check your Baro reading in EvoScan, not include in log.

Other then that everything looks normal I think.

If you have time I can send you a rom to test.

 

[GSXeclipsePSI]

Yes please do I am willing to do anything (that sounded naughty). I'm always free to try anything I don't have a job really so I'm always on here doing my homework and studying for my Automotive Repair Technician course online.

The evoscan read out say 99.96 the whole time on the screen. I had baro selected, the log doesn't say baro but evoscan did, accel w.e. has the data baro did from the screen.

I'm using v2.7 but I didn't use your evoscan file cause I thought it would cause conflict.

 

[kiddsm95]

GSXeclipsePSI can you check your Baro reading in EvoScan, not include in log.

Other then that everything looks normal I think.

If you have time I can send you a rom to test.

What exactly should the Baro reading be doing? Depending on which scaling I used on my injectors I can get the reading to cycle, or hold rock steady. I'm assuming we want it to be cycling?

My Baro readings are in the 95-96 range most of the time.

 

[jeff24680]

Can anybody diagnose why my car is backfiring around 1600hz and 5000-5250 RPMS in 2nd an 3rd gear(have not tried 4th).


Mod-list up to date

Brand New BPR7es gaped .028
Magnacore Cables

If you notice the duty cycle drops to 0 when it backfires.

Do you think the Pump just stops? Like, I am baffled.

I have BLT to 20psi and it holds for over 2 min.

I have sent ceddy the latest copy of my flash to peruse over, but if anyone can notice anything I am overlooking


**EDIT** This is a 3rd gear pull

***2nd Edit**Upon comparing my flash to "GSXEclipsePSI" I noticed quite a few differences in the periphery bits section regarding emissions, I have changed my settings to match his, and we'll test again on the way to school tonight. One question GSXEclipsePSI I noticed your boost cut delay timer is set to 1000 where mine is 1638375, I was under the impression you need to set it to its max possible value?

 

[jrohner]

So then I notice my IDC on my logs is 0

You're logging Injector pulsewidth, and have it listed before IDC right? With calculated items, anything it uses in the calculation MUST be before it (and enabled).