FIC Logs, car looses power, hesitation / detonation

[jaffaz32]

I have created a new thread to keep it clean.

I will attach some logs from my FIC.

to cut a long story short i posted my car was running poorly and the majority commented it was down to the tune.

My car is a stock 3.0 with a LoveFab turbo kit and FIC ID Injectors, water / methanol injection etc etc.

The problem start initially only during high boost pulls, at a certain rpm the was a series of fast popping kinda noise the car would sort of shake and not pick up speed around middle rpm range, this was only under heavy acceleration originally.

Then i started to get worse, moderate to heavy acceleration

Then on low boost also.

My Uego gauge is never stable it bounces all over the place, spends allot of time in the red or even off the gauge altogether.

Started happening not long after the tune keeping in mind it was on factory ecu and NA before the tune.



I've replaced several items including coil packs, funnily enough when i change the plugs it buys me a few days until it starts again.

If i drive my car normally it's fine. If i do a hard pull, the issue usually occurs and once it occurs it continues to play up.

I will attach the logs in their original form, if viewing on google drive there are thousands of records not shown so they need to be downloaded.

I will reply with the logs converted to Excel format.


I would like to know if you can tell from the logs what's actually going on, and if it is my actual tune.

I have decided i am going to bin the FIC and go with a better solution going forward but if i can improve driveability until that time then great.

I would like to know if my car is safe to drive also as it is.

https://drive.google.com/file/d/0B5vgVCPac6CUbDUycGNUX25FU2M/view?usp=sharing
https://drive.google.com/file/d/0B5vgVCPac6CURGxRdlFOQ0VNN0k/view?usp=sharing
https://drive.google.com/file/d/0B5vgVCPac6CUcEt3dXJBeVJRaUE/view?usp=sharing
https://drive.google.com/file/d/0B5vgVCPac6CUcVZVR3V6VUhjazQ/view?usp=sharing
https://drive.google.com/file/d/0B5vgVCPac6CUbUcxMWwwSW90b28/view?usp=sharing
https://drive.google.com/file/d/0B5vgVCPac6CUXzA2OWI1MlVNdjg/view?usp=sharing


Thanks....

- - - Updated - - -

And in Excel format, bit easier to read but can't be imported in to AEM Log software.

https://drive.google.com/file/d/0B5vgVCPac6CUdHJyYk9XcmI0ejQ/view?usp=sharing
https://drive.google.com/file/d/0B5vgVCPac6CUV3c0RmFENXc3X1k/view?usp=sharing
https://drive.google.com/file/d/0B5vgVCPac6CUOExqOE45Z2daemM/view?usp=sharing
https://drive.google.com/file/d/0B5vgVCPac6CURzdCcEpEcUctYXc/view?usp=sharing
https://drive.google.com/file/d/0B5vgVCPac6CUVUt3QlpvaE5vQWs/view?usp=sharing
https://drive.google.com/file/d/0B5vgVCPac6CUSXlYNTlGWFlyQkE/view?usp=sharing

Again there are thousands of entries, Google drive does not show the full file, they need to be downloaded to be viewed properly.

When imported in AEM Logs the orig text files on original post show a different story to looking at the txt file, the injectors read are much better to read and there are graphs etc.


Thanks.

 

[jaffaz32]

I've been advised not to drive the car with it's current Uego readings.

Ordered a new sensor as there is a possibility it's gone bad.

 

[kingtal0n]

How do the plugs look?

If you are running lean (wideband goes "red" right?) Your engine is in danger of course.

The only other thing that can cause a wideband to go "red" (lean) like that is a mis-fire (blowing out spark). What are the plugs gapped at?


You said new plugs "fixes" the problem which is scary, it sounds like you are burning them up with high temperatures (running lean). When they come out, do they look really white and/or melted?

So to wrap it up,
1. check your plug gap, I would say .026" works in most small displacement turbo applications on stock ignition components. The factory gap may be as large as .044".
2. verify your air/fuel ratio is good. Usually you will want to see near 11:1 for a gasoline turbocharged street application, pump gas 93, with under 19psi of boost for 9:1 compression engines.
If the A/F ratio is "bad" then the tune is wrong or the fuel pump can't keep up.
To assist diagnosis, turn off the meth injection, lower the boost as low as possible (if the wastegate is internal disconnect the flapper). Drive the car with super low boost and get some numbers off the wideband then gradually raise boost while watching the wideband until the problem presents itself. At 5psi~ you will want to see at least 12:1 air fuel ratio in most cases.

 

[venomous42]

How do the plugs look?

If you are running lean (wideband goes "red" right?) Your engine is in danger of course.

The only other thing that can cause a wideband to go "red" (lean) like that is a mis-fire (blowing out spark). What are the plugs gapped at?


You said new plugs "fixes" the problem which is scary, it sounds like you are burning them up with high temperatures (running lean). When they come out, do they look really white and/or melted?

So to wrap it up,
1. check your plug gap, I would say .026" works in most small displacement turbo applications on stock ignition components. The factory gap may be as large as .044".
2. verify your air/fuel ratio is good. Usually you will want to see near 11:1 for a gasoline turbocharged street application, pump gas 93, with under 19psi of boost for 9:1 compression engines.
If the A/F ratio is "bad" then the tune is wrong or the fuel pump can't keep up.
To assist diagnosis, turn off the meth injection, lower the boost as low as possible (if the wastegate is internal disconnect the flapper). Drive the car with super low boost and get some numbers off the wideband then gradually raise boost while watching the wideband until the problem presents itself. At 5psi~ you will want to see at least 12:1 air fuel ratio in most cases.

nailed it
perfect diag.