CPE EMS Problem???

[knowledge007]

No, lmao its nicely stored in my closet awaiting for the PNP connectors from CP-E...

 

[blkMS3]

I haven't had any problems w/ my car yet....i installed it on friday and have driven about 200 miles and the car feels real fast i can def. tell the difference in the butt dyno....

 

[Finkle]

bLKMS3, whats the temperture like over there? up here we're sitting between 5 degrees celcius - 15 degrees celcius

 

[Finkle]

K, i finially talked to jordan and started working my issuses out.
First question was: flucuating voltes in Pin 8, he actually said that was normal because it is a crank position sensor, so depending on where the crank is, is what your reading is gonna tell you.

Sencond q: Why is my car experiencing a hiccup (or fuel cut) and he confirmed my nightmare. ITS FUEL CUT from what he can gather, cuz im only getting it at wide open throttle.
Now my fix for this:
first thing he told me to do was, in the standback programmer, go into the Advanced Boost Controller Settings and change my Boost Clip PSI from 13.0 -10.0
Next thing: was to do some live data logging via a passenger in the car so the driver can concentrate on driving. What he said to do was watch my fuel trim cell, and watch where i was getting my fuel cut. Then to change some values in my fuel tables to try and subsidize for the fuel cut, and HOPEFULLY this will give me a temporary solution till i get it on the dyno.

 

[laloosh]

I spoke to jordan as well. So far ive put my forge back on. Reduced the boost clip from 13 to 10. And added 3 percent of fuel in the midrange. Went out for a test drive, floored it in 3-5th and it ran great. Than again it was 54 degrees outside. Ill try this again later at night when its sub 40 and well c if the problem is solved.

 

[Finkle]

Awesome work Laloosh, imma try that tonite when the temperture is down to 5 degrees celcuis
Now when you say you added 3 percent of fuel to the midrange what do u mean....did u change the 0's to 3's in the midrange? and if so where did u start and end, just so i have something to compare to

 

[laloosh]

yea i just replaced the zero swith 3s. I started at everything to the right of 2.1 ranging from 2897rpm to 4345 rpm. If this doesnt make sense, just open the software and it will make sense.

 

[Finkle]

makes perfect sense but why did u stop at 4345?
do u have a wideband hooked up?

 

[laloosh]

ive just based it on maybe dynoes that ive seen. This car runs lean down low and in the mid range and stupid rich up top. Plus my lil hicup occurs right around 4200rpm so im dumping more fuel at the point, it "should" go away. Im going to go out later tonight and do some datalogging to see if it happens again...if it does ill be able to see the exact rpm, and ill dump more fuel to that spot. If it continues to happen, then i give up.

 

[Finkle]

PERFECT, ill do some data logging myself tonite, and we'll compare notes

 

[Jays07MS3]

makes perfect sense but why did u stop at 4345?
do u have a wideband hooked up?

Correct me if I'm wrong but can't the standback read the stock WB sensor? The product description doesn't mention it specifically but it say is can read just about every sensor. If so, can't you log the sensor readings and tune based off of that?

Our StandbackTM can also datalog just about every engine sensor for up to 40 minutes (depending on the selected sample rate of either 5, 10, or 20Hz)! This is an invaluable tool for diagnosing tuning problems as well as for monitoring engine health. Welcome to advanced engine tuning in the 21st century!

 

[laloosh]

it doesnt pick up my stock o2 sensors....ive tried

 

[Jays07MS3]

it doesnt pick up my stock o2 sensors....ive tried

Thats lame.

Hopefully that something CPE can add in a future update. I don't know why they wouldn't be able to read them. Does the standback have the ability to read auxiliary inputs such as WB 02 or EGT?

 

[laloosh]

it does, but who knows how to hook them up. i think cpe mentioned that they are gonna have their own wideband available that connects to the ems. I thought it would pick up the stock o2 as well. This way i can just street tune it and forget about it.

 

[Finkle]

No it doesnt pick up the stock wb, ive tried several times. I guess if it picked up the stock one they wouldnt be able to sell an aftermarket one.

Where did u pass the usb connector through, the hood release hole is too small, did u drill antoher one?

 

[laloosh]

i just ghetto rigged it for now through the fender and out by where the door hinge is.

So i did some datalogging but im not sure how to actually get a graph of it. Neway i went to the extreme and just dumped 10 percent more fuel from 3-7k rpm and holy s*** the car just instantly drove 10 times worse, it hit fuel cut and bogged and went and bogged and went. It was horrible. When i actually leaned it out a lil 2-3 percent the car pulled HARD. Once again the temps is 49 degrees and i didnt get any hesitation.

Now heres my theory, by adding fuel two things are happening.
1. Its just flooding the cylinders and making it studder cause its so rich
2. Its making out the pump trying to add the fuel i requested.

This who datalogging thing is USLESS without a wideband and im done with it.

 

[Craighjr]

Hey sorry I've been busy and dropped off the thread. I have to get surgery on my wrist Friday so I'm out of comission for a week or two. I'll try to get my wide band in this week and then as soon as I feel a bit better I can start tuning. I'll probably bring it to IMP and see what they can do also, that and to get solid numbers at the wheels. Just as a side note you really want to lean the car out I think. They run pig rich already around 10:1 so if you bring that up to 12:1 your leaner but still quite rich.

 

[laloosh]

fill me in on ure imp visit. I might wanna go as well.

 

[Finkle]

I didnt get a chance to make it out but on my way from work i did change a few things before i left, but just upped some of my 0' to 2's and it didnt get fuel cut or backfire, so imma try and push her in the morning and find out.
Where did u end up leaving your values for fuel?

 

[nypest]

My turbo seals may be gone, i heard a rumor that the oil could be causing my car to detonate
Ill put my wideband in 2morrow hopefully and see what shes running at, for the time being ill put the bypass plug in
thx

Oil causin denotation??