EFIDynoTuning

Is there any quarter horse support Ford 7.3 super duty diesels? I don't have one...but I could some day.

Thanks Decipha!

Found some threads here on the function. So being an automatic I'm guessing I don't need too much decay.

I just changed all values in column 2 to .1000 and it decays much faster now. And doesn't overshoot idle. I still would like to know what each column in this function does.

hello. im looking for a little guidance on this table. what do the values in the x and y columns mean. and what do they measure? are they time? air volume? i saw Deciphas writeup had a sample with these values: 2.00 0.0025 1.25 0.0800 0.50 0.0030 0.30 0.0007 0.00 0.0007 0.00 0.0007 Meanwhile mine lo...

Ok no sweat. Thanks

Just wondering if you ever found a def file? I'm looking for one myself so I can read out my ecm to retrieve/read some data from it.

Think I found the issue. Some reason 40 deg column was above the 80. In other words the order was going 200-1.49 40-11.98 80-3.98 -65535-15.98

Is it FN1350? No value at 20'. Goes from 80' straight to -65536. Value at 80 is 3.998 value at -65536 is 15.854

Thanks. Will do.

Hello everyone. This seems to be a fuel problem. If I crank it long enough it will eventually start, as long as the battery doesn't die. When the weather is warm or if the vehicle is already warmed up it starts fine. Now that the weather is cold (20f) , it is hard to start and starving for fuel to s...

I found the updated def file on the downloads page. The outdated one I got the other day I think was in the getting started write-up.

Thanks buddy

Downloaded the file 8/3/18. Right clicked and properties of file say date created is 9/29/15

Downloaded a few days ago from this website

When I type in octane it says no items found. BTW this is the cbaza56k def if that makes a difference

I just tried searching for it, but can't find it. Tried searching "spark", "spark bar" , "octane" , "octane bar" and "bar". No luck. Also tried looking at each choice under there Spark folder .

Cool thanks. How about using it to add timing?

Hello. I was just wondering how the octane switch (pin 29 in cbaza) when grounded manipulates timing? Is there a spark subtraction table or something? And can it be used to add or subtract timing when grounded? I just realized I have nothing going to pin 29 on my ECM. I am running your U4P2 def on t...

I will check commanded lambse in drive... It may be correct. Thanks

Lambses are perfect in neutral (.98-1.02) but (.92-.96) in drive? Is this because commanded lambe in drive is slightly enriched from stoich?

Ah thanks good idea. BTW is it common for lambse's to go from perfect in neutral (.98-1.02) to (.92-.96) in drive?

Was just looking at the idle air write up. Just wondering why BZZRPM is recommended to be at zero on cold startup? Will this not add RPM at startup? If so how do I get a cold start high idle or a warm restart high idle?

Got it idling now. Have to finish tinkering another day. Thanks a bunch at least that problem is behind me now. Time to move forward

Will not stay running now. Should I disconnect iac plug and set idle screw till I maintain steady idle and then turn off plug in iac , restart and then follow those ^ instructions?

I got it! Damn iac wire came slightly out our the 60 pin connector. So now I have good startup and warmup but ISPIBR is still at .60 at startup. When it's warmed up on restart it surges from 250-1500 rpm violently and sometimes stalls. It takes a minute or two for idle to stabilize.

If so should I pick up a cheap analog meter?

If I max out global offset to 100 should I see some voltage at the iac connector with engine running and iac unplugged?

Ok. Thanks!

From 0 to 100 idle was same at about 750~ and air mass was about 19.~ maf

There is no change at all.

That's what I thought you were gonna say. Should I datatlog it or just write it down?

Should I do all this at full operating temp?

Thought the iac test procedure was KOEO measure 10.5-12v at iac connector? Is this because it's a custom tune? What is the test procedure I should be using?

Key on engine off I measured no voltage at the iac connector . Appears to have a good power but no ground from ecm. could this be the tune at all? Or am I looking at wiring or an ECM?

Thanks!

Remember Ian using a mechanical idle tune. Is there any other adjustment besides the throttle blade set screw and fn1862n&d ?

Fn1862? I wish it was that simple. I have to figure out why my iac is not working first. I pulled it off, it is clean like new and the plunger valve is moving free. Also solenoid end is free. I have to Ohm it out and check key on iac harness pin voltage and see if it's getting power before I assume ...

True. You're right. I feel like I am close. Now that I think about it my fueling looks pretty accurate and runs good when warm. Just has no dashpot. Slight hesitation, bucking, and occasional stalling, no rpm decay, and no fast idle during start ups or warm up anymore.

I think at this point I want to start from scratch with a new bin. So much was changed on this over the last 2 years I don't know what it right or wrong. Not sure at this point what if my firing order is correct for the bin I'm using. I know alot has changed with xdf updates also over the years. May...