OpenFlash Tablet E85 (and gasoline) Maps now available

[Td-d]

Originally Posted by Malt

66 degrees this morning and it almost cranked right up. If I had given it a little tap of the gas pedal during the 2-3 seconds the idle was stumbling it probably would if been fine. It cranked just fine on the second attempt.

So we're close. The next part is to add fuel to the cranking enrichment table? Suggestions as to how much to add since I reset everything back to 0 like suggested?

Sent from my SCH-R970C using Tapatalk

Good to hear!

Well the RPM table is zeroed stock - but maybe give it a little bit of compensation - trial and error I guess until it ticks over no problem.

[jeebus]

Has anyone running e85 had their AM move down? Mine had been rock solid at 1 until today. 42 degree morning, car took a bit of extra cranking (it's in a garage so no too bad). After idle stabilized I drove off slowly as I normally do. About 2 blocks away I hear loud det. Then I heard it again. So I hooked up my OF and saw the AM had dropped to .93 (I know, not terrible). I didn't hear any det from that point on but I drove carefully for the first 15 miles (40 mile commute). I loaded it up a little and the AM went up to .96. I loaded it up again but it dipped to .90. By the time the temps got into the 50s outside, loading up the motor got AM back to 1.

For reference, this tank of e85 has my LTFT a tad on the lean side (4% or so). WOT pulls are also a little leaner that I'd prefer...staying high 12s up top. This is the first tank of e85 that I haven't added a gallon of 91 to. The other tanks seemed way too high E content.

[WRB5titch]

I haven't encountered the same problem as you have. But then again, I've been adding a gallon of 91 to the tank on the last couple fill ups...

I'll try going pure e85 on my next tank and post an update later.

[Terrapin77]

Originally Posted by Hanni_0176

Installed the OFT tonight. Drove around for a bit, and noticed that my traction control and ABS lights were on, on the dash... I did some datalogging with both the OFT and Torque Pro (not at the same time), and this was the CEL issue:

Stage 1 v1.34
Vehicle Calibration ID: ZA1JA01C
Pending Fault Log
P0462: Fuel Level Sensor Circuit Low Input

I drove it home, shut off the car, and then turned the car back on. The displays on the dash are no longer there. I'll check again tomorrow, and run another diagnostic on it.

The car felt fine during the drive, no weird noises, no bogging. I didn't really notice a difference from v1.33, but it definitely didn't feel worse. Hopefully I don't get any more CEL issues.

After I get some more driving in and my ECU adjusts some more, I'll post up my opinions/reviews. Also, if the CEL pops again, I'll let everyone know.

I just got this code after being on E85 for 40 miles.

[Rombinhood@OpenFlash]

I don't see how E85 itself can trigger a fuel level sensor code. I would just clear the code with the OFT and see if it comes back.

[Terrapin77]

Originally Posted by Rombinhood@OpenFlash

I don't see how E85 itself can trigger a fuel level sensor code. I would just clear the code with the OFT and see if it comes back.

Code has been cleared. However, right after I got the code, I topped of my tank with more E85. The needle on my gas gauge didn't go to full. I hope my gas gauge isn't fried.

[garfull]

I've been having cold start issues too. Second tank of e85. Last two difficult starts have results in a loud pop before it fired up. Not sure what the sound was if it was detonation or something else. Might switch back to reg gas if this persists at least until the weather warms up.

Will adding a gallon of reg gas on a tank of e85 really make cold starting easier. Wouldn't that make it less than e85, more like e78 assuming you start with actual e85?

Originally Posted by jeebus

Has anyone running e85 had their AM move down? Mine had been rock solid at 1 until today. 42 degree morning, car took a bit of extra cranking (it's in a garage so no too bad). After idle stabilized I drove off slowly as I normally do. About 2 blocks away I hear loud det. Then I heard it again. So I hooked up my OF and saw the AM had dropped to .93 (I know, not terrible). I didn't hear any det from that point on but I drove carefully for the first 15 miles (40 mile commute). I loaded it up a little and the AM went up to .96. I loaded it up again but it dipped to .90. By the time the temps got into the 50s outside, loading up the motor got AM back to 1.

For reference, this tank of e85 has my LTFT a tad on the lean side (4% or so). WOT pulls are also a little leaner that I'd prefer...staying high 12s up top. This is the first tank of e85 that I haven't added a gallon of 91 to. The other tanks seemed way too high E content.

[Rombinhood@OpenFlash]

Originally Posted by garfull

I've been having cold start issues too. Second tank of e85. Last two difficult starts have results in a loud pop before it fired up. Not sure what the sound was if it was detonation or something else. Might switch back to reg gas if this persists at least until the weather warms up.

That pop was just a minor backfire and is not terribly uncommon during cranking conditions when running e85 in cold temps. Nothing to worry about. That is very different than detonation which is harmful.

[garfull]

I hope its just a backfire because the pop sound seem like it was coming from the engine bay not the exhaust. I will open the windows on the next cold start and pay better attention.

Originally Posted by Rombinhood@OpenFlash

That pop was just a minor backfire and is not terribly uncommon during cranking conditions when running e85 in cold temps. Nothing to worry about. That is very different than detonation which is harmful.

[Rombinhood@OpenFlash]

Originally Posted by garfull

I hope its just a backfire because the pop sound seem like it was coming from the engine bay not the exhaust. I will open the windows on the next cold start and pay better attention.

If it's coming from the engine bay, it's intake backfire. Same concept as exhaust backfire but just initiates in different points in the combustion process. In the case intake pop/backfire, it's usually caused during cranking while running insufficient timing. In the case of E85 in cold weather, this can be induced because the air/fuel charge is harder to ignition at start up.

Detonation is a completely different beast altogether and won't happen at cranking speeds and low engine loads.

With E85, there is always going to be some degree of cold start crankiness in the winter. This is the case on everything platform I've run E85 on (GTR, Evo, Suby, etc,.) Especially with E85 mixes that high unusually high E content (as we are seeing lately in CA at least). But once you are past the few seconds of running, everything should be fine. But if this initial cold start issue is irksome, no harm in just running gasoline until temps warm up a bit.

[nlowell]

First day with stage 1 OFT loaded - should I be concerned that my AFR drops to 11.25 during a WOT run?

Vishnu said that Ign Advance should be in Mid 20s
Mine ranges from 29.5 down to 26 (mid to high 20's)

Vishnu said that AFR should be mid 12's
Mine ranges from 12.75 down to 11.25

Automatic
91 Octane gas
K&N Drop-in
Nameless Combo pipe with high flow cat
NVidia Q300

Image of Log

[ReThink]

Received my OFT a few days ago and tonight I was out testing the 1.34 map; specifically the soft rev limit and to my surprise it did not change from the normal fuel cutoff at 7400. I was doing a WOT pull in first and rung it out expecting a slight rev limit bounce and was greeted a power loss. I didn't try second gear because I assumed the same thing would happen.

Anyone else have this issue? Which chart/table should I be checking for the soft rev limit? What should the settings be?

Thanks in advance!

[Malt]

Originally Posted by ReThink

Received my OFT a few days ago and tonight I was out testing the 1.34 map; specifically the soft rev limit and to my surprise it did not change from the normal fuel cutoff at 7400. I was doing a WOT pull in first and rung it out expecting a slight rev limit bounce and was greeted a power loss. I didn't try second gear because I assumed the same thing would happen.

Anyone else have this issue? Which chart/table should I be checking for the soft rev limit? What should the settings be?

Thanks in advance!

That's not an issue, that's how Shiv made the maps to implement a soft rev limit.

[Burn]

Originally Posted by nlowell

First day with stage 1 OFT loaded - should I be concerned that my AFR drops to 11.25 during a WOT run?

Vishnu said that Ign Advance should be in Mid 20s
Mine ranges from 29.5 down to 26 (mid to high 20's)

Vishnu said that AFR should be mid 12's
Mine ranges from 12.75 down to 11.25

Automatic
91 Octane gas
K&N Drop-in
Nameless Combo pipe with high flow cat
NVidia Q300

Image of Log

Same as mine with stage 2 1.34B ROM (EU ROM: ZA1J700G).. here

http://datazap.me/u/burn/first-3-gea...7-8-9-10-11-12