weird prob with my car in SD....

[beamar]

So, brought the car to the dyno today to get my VE all dailed in, but it's acting super weird. Can't figure out why. According to my histo, it's wants my VE tables in the high 100's and low 200's. It runs rich as hell already(ford SVO 42#'s). I jacked up the VE that to see how the car would react. and I can smell like pure gas going through.

needless to say, it runs ok with the MAf plugged in when the car goes in PE mode or whenever I get on it. lower speeds it's VERY slugish it like the cycl's are flooded.

I had the wideband plugged into the Y pipe. But there are two cutoffs closer to the motor which might of been leaking a little.

The car dyno'ed ok. It did 410@7000.

Just need to get it's driveablity up....

any ideas???


here's my SD tune.. and the log of it..

figure I'll also post up my dyno runs...keep in mind this was with the MAf setup...


Any ideas?

I did a 02 earlier in the day and all went fine....

my 99 just didn't want to run in SD mode...

[beamar]

no one?

[Russ K]

Your fuel trims are up to ~ -20% and the WB is ready very lean. Fix those exhaust leaks and make sure the WB is properly calibrated. I set your injector flow rate table. I would set the PE to 1.13 (13.0 AFR) Also set the stoich afr to 14.68. Your still in closed loop even though the closed loop enable is set to 284*F. Just unplug one of the front O2 sensors, this will put the car into open loop.

Russ Kemp

[beamar]

yea, pretty sure the prob I'm having is an exhust leak.

I have QTP headers with the slip-on collectors and they are a bitch to seal.....

[beamar]

Russ, the file you uploaded isn't working, "failed validation check".

anyways, I have PE set to 1.3 to 4k, then 1.155 after that.
stoich afr is at 14.68.

also, I used the spead sheet to set my injector flow rate..... Why would it be different?

Also, is it normal for the car to go into closed loop when it's set not to? Do all years require you pulling one of the 02 sensors?

[Russ K]

Since I have Beta 2.1.13, you will need the same version to read my files. Anyway your injector flow rate table was a little high (leaner) than the spread sheet I used. For some unknown reason some cal's. still go into closed loop even though the enable temp is set high, and the STFT & LTFT are disabled.
Even a small exhaust leak upstream from the WB sensor makes a big diff.

This is the spread sheet for the injector flow rate. I think it was posted from Sound Engineer.

Russ Kemp

[beamar]

Here is what I'm using to plug in.....

The one you posted has the stock fuel pressure @ 56 and not 58.....

injector rated 41.47 @ 40
our presuure is 58

I get 49.93737337 50.24859823 50.55790728 50.86533548 51.17091672 51.47468391 51.77666895 52.07690287 52.37541578 52.67223692 52.96739476 53.26091693 53.55283034 53.84316114 54.13193481 54.41917614 54.70490925

I'll get my laek taken care of(or try to anyways) and see the results...

[Russ K]

Woops, I didn't save the changes to the file. This should be the right table.

Russ Kemp

[beamar]

Where did you find out the injector is rated @ 43.5???

I remember back a few months ago looking into it and finding it was rated @ 40 PSI...

[Russ K]

On the http://www.fiveomotorsport.com/Injec...MODS.asp#denso web site it appears that they are rated at 3 bar. So 14.503861 x 3 = 43.511583.

Russ Kemp

[beamar]

interesting...


according to that website...they are rated 45#'s @ 3 bar.....

so I'm getting these #'s

51.96244059 52.28628628 52.60813848 52.92803355 53.24600676 53.56209235 53.87632354 54.18873259 54.49935083 54.80820871 55.11533582 55.42076095 55.72451206 56.02661641 56.32710047 56.62599004 56.92331024 57.21908554 57.51333977 57.80609615 58.09737734 58.3872054 58.67560188 58.96258777 59.24818358 59.53240931 59.8152845 60.09682821 60.37705907 60.65599528 60.93365461 61.21005445 61.48521177 61.75914319 62.03186494 62.30339292 62.57374266 62.84292937 63.11096793 63.3778729 63.64365856