scan

What do you guys think? scan was done with 3.5 pulley on, just gutted box, al604 using auto tap scanner.



Engine Coolant Temperature(°F) Engine Speed(RPM) Ignition Timing Advance(Deg) Intake Air Temperature(°F) Long Term Fuel Trim Bank 1(%) Manifold Absolute Pressure (MAP)(kPA ) Mass Air Flow Rate(lb/min ) O2 Sensor - Bank 1 Sensor 1 (mV)() Throttle Position Angle(%) Vehicle Speed(MPH) Knock Retard(Deg) Barometric Pressure(kPa) Current Gear()
180 2080 -35 68 4.7 91 6.628 60 25.5 24 0 101 2
180 2530 -24.5 68 3.9 99 8.137 60 28.6 28 0 101 2
180 2714 -23 68 3.9 131 14.278 875 87.1 33 0 101 2
180 3344 -15 68 5.5 146 18.015 905 100 39 0.6 101 2
180 3542 -15 66 5.5 147 19.46 910 100 45 0 101 2
178 3755 -15.5 66 5.5 154 20.766 910 100 51 2.8 101 2
178 3936 -12.5 66 5.5 155 22.056 910 100 56 2 101 2
178 4109 -13 66 5.5 155 23.049 910 100 61 3.3 101 2
178 4242 -11.5 66 5.5 156 24.204 910 100 65 2.5 101 2
178 4384 -12.5 66 5.5 158 25.215 895 100 70 1.7 101 2
178 4567 -9 64 5.5 157 26.33 910 100 73 4.4 101 2
178 4715 -9.5 64 5.5 149 22.828 885 74.1 75 3.6 101 3
176 3832 -12 64 5.5 153 19.707 890 69.4 77 5.6 101 3
176 3821 -10 64 5.5 140 18.618 880 52.2 78 4.8 101 3
178 3788 -11 63 5.5 145 18.618 890 51 81 4 101 3
178 3799 -11.5 63 5.5 135 17.111 870 43.5 83 3.3 101 3
178 3692 -14 63 5.5 106 13.493 840 36.5 84 2.5 101 3
178 3651 -15.5 63 5.5 26 1.1 15 0 86 0 101 4
178 2714 -31 63 7.8 20 0.909 760 0 83 0 101 4
178 2111 -29.5 63 7.8 19 0.771 820 0 80 0 101 4
180 1986 -29 63 7.8 19 0.728 805 0 77 0 101 4


i think the fuel trims are off, im trying to learn this stuff im a newbie at this. And also i understand i need to open the exhaust up, and probably use al 104's.

Any thoughts or comments are welcome thanks
Mike

if there's any other way i can post this please let me know. i just did copy and past .
After looking at this it looks pretty confusing. sorry

Your fuel trims are off. It's adding fuel before you get into full throttle, therefore it keeps adding fuel while you are at WOT. You should start by learning how to VE tune, it makes a huge difference having the base starting point for your fuel calculation in the right place... then MAF tune.

Read up about VE tuning, it's well worth the time spent. Basically it's tuning for running with no MAF sensor. It's not really that hard to figure out, and you can do it in small areas at a time, generally up to about 30-35% throttle, or as high as you can go without any KR showing.

Oh wait, I just read that you are using an Autotap. No tuner then I take it?

Oh wait, I just read that you are using an Autotap. No tuner then I take it?[/quote]


no tuner yet ... i would like to get one but im not to sure what works with a 96....

OK, I see things a little differently now. You are running a little lean, based on your O2 and LTFT numbers. You have 3-5 deg of KR. All of this seems about normal for a 3.5 with no airflow mods.

If you got one of those MAF frequency tuning things you could bump up your fuel a bit on the high end.

You should scan for MAF Hz instead of MAF lb/min.

Otherwise, it looks pretty normal to me. I'd avoid WOT or try some octane boost, 5 deg is getting borderline risky.

edit: The MAF tuning thing I couldn't think of the name of - they call it a "Mini-AFC"

deekster_caddy wrote:

If you got one of those MAF frequency tuning things you could bump up your fuel a bit on the high end."

when i do get my air flow mods done, that should help things out right ? As far as the mini afc 2.2 i cant seem to find who sells it ? is it worth spending $ on a afc or should i just do flow mods then scan again and see where im at?


Back to the AFC Any one know what ones are good / crappy / Stay away from......

Thanks again
mike

Even if you do some airflow mods, well that will help airflow but you won't be adding more fuel. You really need to make some adjustments _somewhere_ to correct the fueling. People have gotten pretty far - I know some 12 second cars with AFCs and no tuner, but it's a hell of a lot easier to tune...

The only AFC I'm familiar with is what they sell at ZZP.

deekster_caddy wrote:

Even if you do some airflow mods, well that will help airflow but you won't be adding more fuel. You really need to make some adjustments _somewhere_ to correct the fueling. People have gotten pretty far - I know some 12 second cars with AFCs and no tuner, but it's a hell of a lot easier to tune...

The only AFC I'm familiar with is what they sell at ZZP.

I looked at zzp i couldnt locate it...
Iam sort of leaning to the tuner option, but they are Pricey. Plus i need to find what one works with the 96... I guess its time to search old Posts...

Thanks

The DHP PowerTuner works with the '96, just you can't buy them new anymore. Keep your eyes peeled... that's what I've got.

deekster_caddy wrote:

The DHP PowerTuner works with the '96, just you can't buy them new anymore. Keep your eyes peeled... that's what I've got.

thanks i actually just figured that out ,saw other 96ers with it. also got the bin from billboost on the boni site ....So now i just have to find the UNIT.. Tuner.

thanks you've been helpfull