wow those last logs timing logs.

Did you just update to the latest version of ECU+? A buddy had a problem with it and went back to the earlier version and firmware and it went away.

Other then that it might be some connections gone bad, check the harness.

 

I rescaled the tables in EcuFlash and I added 280 and 300 to the fuel tables (high and low octane) and timing (high and low). All I did was change the values on the x-axis at the top and edited the values in the cells. Is there something I missed?

The car is running PTE 880cc injectors so I scaled them to 790 and played with the latency table a bit. The values you see in the latency table worked well for the car, but LTFT is about -10% while cruising but STFT hovers around 0% to 5%. At idle, STFT and LTFT are both 0% most of the time.

I emailed PTE for the latency table information and they replied back with "The opening response time is 1.13ms and closing response time is .998 ms." I asked what voltage was that for but he didn't answer. I did some searching on the forum and found this table ( https://www.evolutionm.net/forums/sh...precision+dead ) which I thought was for PTE 880cc injectors, but the car didn't like the values (STFT and LTFT were more off than what I currently have).

6v 2550
7v 2420
8v 1860
9v 1440
10v 1200
11v 1010
12v 840
13v 710
14v 600
15v 500
16v 410



Here is the map... (tuned the car myself so please do not remove the image)

 

Yeah, ECU+ does that. Tom's trying to fix the bug. Please let me know if you need more info. I'm pretty much stumped right now so I appreciate any help.

I drove the car a lot today and it still feels like the TiAL WG is opening up when it's not supposed to. Here's the hose connection

Nipple off turbo ---> bottom nipple of the WG
Top nipple of WG ---> OUT nipple on the EBC
IN nipple on the EBC ---> boost hose (off the BOV hose)

The instructions say to hook up the IN nipple on the EBC to somewhere BEFORE the throttle body, but there isn't anything in between so I decided to splice into the BOV hose.

 

I don't think I'm purposely having timing so high. I posted my EcuFlash rom screen shot a couple post up. Or maybe the load cell for that RPM range is hitting the ones with value of 20+?

I tried to set timing to about 8* during peak torque, which is around 5000 RPM. Then I ramped up timing to 19* to 20* (depending on the amount of boost) at 7500. Am I being a "noob tooner" and doing something wrong? lol

These two screen shots best represent what I'm trying to do (but without the weird timing spikes):
http://home.comcast.net/~y2kevse/ima...60706_01-1.gif
http://home.comcast.net/~y2kevse/ima...03_ecuplus.gif

 

Yeah, everything goes crazy when the car sputters.

Yes, I updated to the latest version of ECU+ (beta2) but found some bugs and reported them to Tom. The in and out Hz didn't match up when the car sputters. Tom advised me to revert back to an older version, which I did (2.04).

You think a connection went bad? I didn't touch the harness except to add an on/off switch for black #22 wire so I can flash the car without having the pull off the harness.

Remember when I said I was having issues reading the rom from the ECU when I disconnected #22? It was actually user error and I figured out what I was doing wrong.

 

Personally, from what I have seen from other people, 19-20 peak degrees of timing with a GT series turbo is way too much. I would also think 8 degrees at peak torque or so is alot for all that airflow.

I haven't tuned a GT series turbo yet however.

 

Yeah that is quite a bit of timing for a GT turbo.. My car has an intentionally lame tune, 3 degrees peak torque and 8 degrees timing at higher RPM.. 11# of boost.. Car feels nice but needs to be tuned badly..

I'm not concerned with the P0300 code as long as its just the ECU+ causing it on occasion.. Happens to me driving at lower RPM in first gear, navigating my way out of my underground garage at work.. I can reproduce the error consistently now (happens every time I drive like that) I'll try to catch it in the logs if I can next time I reset it.

 

Well, for as weird as this sounds, you could be getting spark blowout or some other ignition problem which would feel like sputtering.. With the level of boost, and the timing your running its definitely possible with the GT35r turbo.

 

Hmmmm... I did a search in the UTEC forum and noticed others running 20-ish degrees up on pump to so I tried to do the same... but the car is also on 100% VP methanol.

I'll decrease timing all around by 5 degrees per everyone's advise and go from there.

 

What sort of dyno numbers does that put out on the ECU+ in 3rd or 4th gear?

Yeah, the code isn't a biggie but it does get annoying at times. I also can reproduce the error when driving around slow in first gear in a parking lot.

 

Would the spark blowout in such a low RPM and boost level? I understand if the car sputters in the upper RPM with high boost but I can reproduce the sputtering everytime in 5th (see logs above).

Here are two interesting threads in the UTEC forum where others had sputtering problems as well

1) https://www.evolutionm.net/forums/sh...6&postcount=23
Here's his solution:
https://www.evolutionm.net/forums/sh...8&postcount=29

I did rotate the EBC's solenoid 90 degrees and remounted it during the 35r install, so I rotated the EBC another 90 degrees today and remounted it (total of 180 compared to when the car was running the stock turbo). Haven't tested it yet but we'll see what happens. I still think the WG is opening up too early and it might be because the solenoid isn't letting boost to the top of the WG's nipple.

solenoid rotation with stock turbo (left is the back of the car)
<---
<---

solenoid rotation with 35r (lines pointing upwards)
^^
| |

how it's rotated today (lines pointing to the front of the car)
-->
-->

Hopefully it's the solenoid not liking the upward positioning... but we'll see. The instructions never mentioned how the solenoid should be mounted.




2) https://www.evolutionm.net/forums/sh...45&postcount=1
Fixed with new injectors but I don't believe the injectors are the issue here.

 

Came across a post a little while back, I think the problem is you are sourceing off of the bov house which is not a stable source of vacume / boost. If you can find a dedicated source give that a shot.

Don't recal the post right now but it was in the engine turbo drivetrain section.

 

Thank you. I'll tee it off the turbo and see how it goes.

 

Update... rotating the solenoid didn't work so now I'm going to tee off the turbo hose to the solenoid and see how that goes. If that doesn't work, I'll hook the hoses straight to the WG.

 

Found the post i was talking about:
https://www.evolutionm.net/forums/sh...ght=source+bov

It is one page before the last at the top.