3800 TUNING! :)

[EmersonHart13]

Did a scan with some recommended parameters... Can anyone take a look and tell me how it looks or if I need to change a paramenter or two to get a look at how I am running. I have an AFC 1.0 at my disposal.

Thanks!

John

Click to read more...

 

[imported_Diavolo]

You are pretty rich at idle and cruise, at WOT you are slightly lean. In both scans your KR starts to fall off after 4500 rpm. False knock somehow? I don't Since the afc 1.0 can only tune over all MAF Freq's. I would set it 1 or 2 percentage higher and see what happenes.

 

[EmersonHart13]

Yes it is not quite as robust as the new versions. The KR is a problem. Some think it is because I am lean at the high end so I am getting KR. I am trying to get rid of that richness and I cannot figure out why I am so RICH! I am going to re scan with some new parameters.

TPS LTFT O2 MAFF RPM KR ECT IAT IGN IPW

An I should have those tonight. I would like to rule out some mechanical problem before I incorporate the AFC since I think something is up otherwise... Then I will play with the AFC!

Thanks!

John

 

[J.E.T.]

Looks like your O2's are on the lean side. You should try a slightly richer setting and see if KR drops. Note the tail end of the WOT run. The O2's reach 880mv and KR significantly improve.

Looking at it again, KR starts off high then gradually tappers down. This indicates false KR at the start of the WOT run. Then the PCM recovers and starts giving you better timing advance.

Oh, I dont see the Timing column. That's important to monitor.




02 KR

830 8.2
860 7.68
860 7.33
850 6.9
850 6.38
855 6.21
850 6.21
870 5.69
870 7.42
870 7.51
870 7.07
865 7.33
865 6.9
870 6.64
870 6.21
865 5.78
880 7.16
865 6.82
870 6.38
860 5.95
870 5.52
875 5.26
870 4.83
870 5.61
875 5.44
870 5.35
870 4.92
870 4.49
865 4.05
880 3.71
880 3.28
875 2.85
880 2.42
880 1.98
880 1.55
875 1.21
880 0.78
880 0.35

 

[imported_Ron Vogel]

Yeah, you look a bit lean, before you dial it up I'd drop a heat range in the plugs (if you haven't already), and do something about the IAT's (little warm for this weather). I'd step up the gas until you get a bog at 100mph, then back it off a little.

 

[EmersonHart13]

I need to reinstall my FWI which I uninstalled for winter. I am running an open cone, 180 thermo and a DHP.

P.S. I will have a better scan tonight!

Thanks everyone,

John

 

[imported_Ron Vogel]

I know I'll be flamed for saying this, but...

If you haven't pulled the TB screen yet. You may want to try it. Some cars don't fare well with it removed, but it will draw more air accross the MAF, the computer sees more air, and ups the LT fuel trims to compensate. If the FWI is a pretty straight shot your PCM may tolerate it.

 

[EmersonHart13]

The screen is already out! I have a ZZP State 1 TB ready to go in as well.

John

 

[zeez gtp]

Do you have a l67 in that se??

 

[EmersonHart13]

No Sir!

 

[EmersonHart13]

New Scans with the new parameters!

Please take a look....

Thanks,

John

 

[imported_Diavolo]

another thing I notice is your IAT's rise when you go WOT. With my wizair, IAT's go down. Did you richen it up a little? The KR is still there so it might be false KR.

 

[EmersonHart13]

I did not richen yet, I waited to get scan with some modded parameters first.
I have not reinstalled my FWI yet so I am running an open cone.

I believe my IAT and intake are getting heatsoak from my crossover pipe.

John

 

[EmersonHart13]

I did a scan this morning with -1 on the AFC... Sorry these are tidbits... I cannot sync the LS1M at work so I had to type them in, if you need more just ask and I can provide!

WOT
MAFF O2 KR TPS IPW LFT ECT RPM IAT IGN
7404 840 7.25 100 16.57 -0.08 183.2 3436 93.2 19
7525 830 8.37 100 16.98 -0.08 183.2 3625 93.2 19
7816 855 7.85 100 16.78 -0.08 183.2 3848 93.2 19.5
7969 830 7.42 100 17.09 -0.08 183.2 4138 91.4 20
8171 825 6.99 100 16.72 -0.08 183.2 4431 91.4 20.5
8366 840 6.56 100 17.06 -0.08 181.4 4734 91.4 21

IDLE
MAFF O2 KR TPS IPW LFT ECT RPM IAT IGN
2570 900 0 0.4 4.45 -6.2 181.4 730 78.8 23
2481 910 0 0.4 4.25 -6.2 181.4 713 T.O. 22
2965 915 0 0.4 4.88 -6.2 183.2 729 78 22
2696 915 0 0.4 5.58 -6.2 183.2 638 78.8 24.5
2726 920 0 0 5.47 -6.2 183.2 745 78 24
2734 925 0 0 4.68 -6.2 183.2 810 78.8 23.5

I will do another scan on the way home.... Probably plus one...
John

 

[EmersonHart13]

I have a thread going on Club GP...

http://www.clubgp.com/newforum/tm.asp?m=21...tmode=1&smode=1

John

 

[EmersonHart13]

I did some AFC adjustments....

Any ideas...? It has to be something mechanical because this is bizarre from what I have heard and read!

Thanks,

John