ECMlink Help with log

[jmonterful]

1). Any boost, vac, or exhaust leaks?
Boost leak tested 5psi above your max boost with no leaks?... No leaks at all

2). Verified mechanical timing? yes

3). Verified base timing?yes

4). Ignition system
COP or Stock Coil:stock
Wire brand and Age: NGK, 5 months
Spark Plug brand, type and Gap: Brand new NGK

5). Motor health (Compression Test)
Cylinder 1:
Cylinder 2:
Cylinder 3:
Cylinder 4:

6). Performed basic throttle body adjustments?
Idle Switch:yes
Throttle Cable:yes
TPS:yes
BISS:yes

7). Compression ratio

8). Any known bad sensors or brittle wiring? no

9). Any DTC/CEL codes?

10). Electrical system
Car off (not running):
Car running:good

11). Base fuel pressure and injector values
Base Fuel Pressure:
Injector Size (cc/min): pte1200cc

12). Properly calibrated and configured wideband sensor
Sensor Brand:AEM UEGO
Calibration Date:2 weeks ago

13). Type of fuel
Type: E-85
Percent of Ethanol:

14). Watched ECMlink how-to videos? yes



Okay i would appreciate someone's knowledge on this... i took my car to get tuned about 2 weeks ago and it always seems to run good at first but as pulls go by it appears to be losing power on every pull until it "detunes" basically and runs like this...(datalog). my question is, is there such a thing that can detune my car? im runing e-85,20g hanh turbo, all my supporting mods,25psi. supposedly making around 400hp but it doesnt feel like it honestly. the guy i got it tuned with knows his stuff he has an 800hp auto talon. thats why im wondering if it's something about my car and not the tune. About 3 days after the tune i also noticed one of my injectors was leaking pretty bad, i am not sure if he didnt notice and tuned it like that whitch would explain the weak "400hp,25psi" or if it was not leaking at the time. but i mean... you would notice something like that right away when tuning right? idk much about tuning that is why i'm here to see if someone would take a look and explain me a little more i've watched videos but i dont feel ready to interpret the chart. thanks for looking always appreciated!!!

 

[Vegas Smith]

It's hard for anyone to tell considering you never went wot on the log. There may be some type of mechanical issue that's showing up or maybe severe weather change?

 

[1990TSIAWDTALON]

Have you checked to make sure your throttle cable is tight on the manifold (it should have a bit of slack in the cable it self). It could be that the cable isn't held on tight which COULD explain the non WOT. Worth goin out and checking or have someone press the gas pedal all the way down and make sure the throttle plate is opening all of the way up. Good luck, hope it's that simple!!!

 

[livedsm4g63]

Im sure this wouldnt matter much....

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Also, your 02 isnt cycling while in closed loop as it should be. Could mean many things. Either a bad sensor or a poorly tuned injector. Possibly a leaky injector however I never ran into this problem before.

 

[jmonterful]

I dint wanna go wot! i had a hard time just driving 1 and 2nd gear it would cut off and respond again i noticed my wideband was reading really rich wich would explain why it was bogging. Indeed i think it is a mechanical problem, what i dont understand its why it keeps going back to this. I had lost coompression before when the car wasnt tuned im gonna do a compression test today see if it did it again. Other thing i notice i smell gas most of the time but i cant find any leaking. I thought it was normal for e-85 cause i wouldnt smell it with regular gas before, is that true or would i have to look more nto it? Thanks for the help guys appreciate it as always

 

[Vegas Smith]

I just switched to e85 and I can smell it almost all the time.

 

[livedsm4g63]

I dint wanna go wot! i had a hard time just driving 1 and 2nd gear it would cut off and respond again i noticed my wideband was reading really rich wich would explain why it was bogging. Indeed i think it is a mechanical problem, what i dont understand its why it keeps going back to this. I had lost coompression before when the car wasnt tuned im gonna do a compression test today see if it did it again. Other thing i notice i smell gas most of the time but i cant find any leaking. I thought it was normal for e-85 cause i wouldnt smell it with regular gas before, is that true or would i have to look more nto it? Thanks for the help guys appreciate it as always

If you can smell fuel, your afr reads rich and your 02 reads lean...I would say you are running rich...
Also, your combined fueltrims look to be in check at idle however they are doing some weird things while cruising.

 

[jmonterful]

This turned out to be my problem! I found the honeycomb for the maf inside the filter. Thanks for the suggestions guys. Now i think i got a bigger problem i was checking my engine oil and i noticed it was too watery i think water is micing with the oil. Most probable cause on that?

 

[livedsm4g63]

Head gasket. Is it brownish?

 

[doubleclutch]

if it isn't brown it could be full of fuel. Change it and see what happens?

 

[jmonterful]

The color its good. Its just too watery my tuner said that was normal on e-85 how true is that? I am going to do an oil change this weekend.

 

[livedsm4g63]

I wouldnt say normal. I would change it and keep an eye on the level.

 

[1990TSIAWDTALON]

If it were coolant it would look like a chocolate milkshake. Smell it for fuel contamination.