ECMlink 3rd gear pull log

[->PrOjEcTGS<-]

Get an LC-1... That's the only advice I have for you.

 

[LandoAWD]

I know, I know.

I hear that a lot.

 

[twdorris]

Got any buffers back in?

Yeah, we have a few here now.

Thomas Dorris
ECMTuning, Inc.

 

[LandoAWD]

We'll talk Friday.

 

[LandoAWD]

Another log...if they matter at this point.

BoostEst is about 2lb high at 6000rpm and I had to let off for traffic. Timing topped out in the 9* range. Feels pretty good, to be honest, but there's still a touch of knock.

 

[snowborder714]

Kris, maybe you posted this before, but how are you running 1000cc injectors at 11:1 with no fuel slider movement?

Have you touched any of the settings on your MAFT, or is it set for stock 450's and the rest zero'd out?

You should change your AFRatioEst preferences to say you have 922cc injectors, per this wiki page.
afratioitem [ECMTuning - wiki]

I ran the Calculate global % on the Fuel page and it's showing a bit lower recommended global, although I doubt it should be a huge issue.

I'm not sure why your AFRatioEst is that far off of your wideband readings though.

 

[LandoAWD]

Kris, maybe you posted this before, but how are you running 1000cc injectors at 11:1 with no fuel slider movement?

AEM wideband tomfoolery, sir.

Have you touched any of the settings on your MAFT, or is it set for stock 450's and the rest zero'd out?

MAF-T is v1.1 and settings are for 450s.

You should change your AFRatioEst preferences to say you have 922cc injectors, per this wiki page.
afratioitem [ECMTuning - wiki]

That, I can manage.

I ran the Calculate global % on the Fuel page and it's showing a bit lower recommended global, although I doubt it should be a huge issue.

The global with these PTEs has always been a fun one. Trims look good, so I think you're right that it shouldn't be too big a deal...though I'm rarely certain about the odd things like this.

I'm not sure why your AFRatioEst is that far off of your wideband readings though.

This is what gets me, too. Smells rich, some soot on the bumper, WB gauge reads rich...

I'll get the buffer tomm, and wire it in when it arrives.

 

[snowborder714]

I'm tempted to tell you to lean it out, but we'll wait to see if the buffer helps.

 

[LandoAWD]

...and I'm tempted to do that very thing.

 

[twdorris]

You should change your AFRatioEst preferences to say you have 922cc injectors, per this wiki page.

Do you mean because he's running 37psi fuel pressure? If so, the V3 application lets you specify that in the AFRatioEst properties. No need to adjust the injector size. Just enter 1000 cc/min and 37psi if that's what you're running.

Thomas Dorris
ECMTuning, Inc.

 

[->PrOjEcTGS<-]

...and I'm tempted to do that very thing.

Do it... Then post the log...

 

[LandoAWD]

I never pulled the fuel, though I did add a bit of timing into spool RPMs and across the board in boost (maybe 1deg)

A clip from today. I notice BoostEst is a bit off (running 25psi) and my headaches with the WB02 differing from the factory O2 differing from AFEst continue.

 

[snowborder714]

I really think you just need to get an LC-1 and MAP sensor

 

[LandoAWD]

Finally found my MAP. I'll try to get it on ASAP.

The LC-1 will have to wait for now.

 

[Rob10_99]

Your plugs look ok still after those changes? Even at 9:1 AFR I would take some fuel out, plenty of leeway IMO.(considering its est)
Your front 02 voltage is pointing that it's correct at 9:1 anyway, right?

 

[LandoAWD]

I've got a fresh set of plugs waiting to go in, so they'll get dealt with this weekend, I think.

 

[LandoAWD]

Tired of me yet? MAP not in...plugs swapped.

Car is running pretty darn well, actually. I DID zero the fuel tables, however. Something is definitely amiss with the WB. I feel like it's 1990 again and and I'm on knock-watch and tuning off the unreliable front o2, but at least something's kinda working.

Peep the snippet:

 

[->PrOjEcTGS<-]

"Knock-watch" haha reminds me of those Neighborhood Watch "We call police" signs.

Looking at the log I'd richen it up a little from 5k on. Looks like your car likes .88v anything less and you get some knock.

BTW, I just replaced my alternator and it's amazing how much better the car runs when you get at least 13.3v under a load!!

 

[LandoAWD]

I'll dial in a few clicks, but I feel odd adding fuel on aftermarket setups.

 

[->PrOjEcTGS<-]

Yep. I understand... But 1-2deg of knock retard is ok. But at 6500rpm it ramps up to 5 almost 6. I'd at least add a little bit from 6k to 6.5k. Just to see if it calms out the knock. Your timing is already crazy low. Might just be that your GM MAF is registering lower amounts of air at higher rpm leaning you out just slightly, enough to knock. Without accurate WB info it's hard to tell.

Also, you say you're doing this all on pump gas? You might try a better fuel just to see if that takes care of it. You might just be over working the fuel.

BTW, I love my meth...

 

[LandoAWD]

Always on 93 BP pump.

I added the fuel in where recommended, but it's all rainy and the car likes to twitch when boost hits.

I'll try to do some tweaking if we can get some dry road.

 

[LandoAWD]

2 more little pulls from today.

More fuel still up past 6k?

I need to invest in a Tial, BTW. I can hear the twin 1g valves fluttering at WOT near the higher RPMs.

 

[Rob10_99]

First log your timing seems really low before spool, still looks like your pig rich.
You file says you have a WB02, or are you just saying that?

 

[LandoAWD]

WB is reading 10.6 and front O2 is at .86v

Am I missing something on the "pig rich"?

Certainly open to timing suggestions leading into boost...

 

[Rob10_99]

Found this on the net,
Volts A/F ratio

.1 17:1
.2 16.5
.3 16:1
.4 15.4
.5 14.9
.6 14.4
.7 13.8
.8 13.2
.9 12.7
.985 12.1

Which is opposite of what your seeing correct? If that 02 voltage is a good reading then your lean, that would explain your knock. Ok turned on the WB02 view didn't see it before, the 8:1 I was speaking of is the af est,

Bring up the 4k and 4.5k fuel trim to match the 4.7%+
You could drop the 5k+ trims as well, it would get you into the 11.5afr area. Do a pull or two and add some timing if you don't see knock on spool. If you want to add timing instead of fuel at first that may spool faster.
Start in 3rd around 2.5k rpm to see spool a little better,