yEAH i got the flu so sorry.

I had issues, meaning i resolved it. My solution, going back to my original ROM 9717008 instead of the patched 94170014.
The issue was it was not switching on the fly regardless of load. If i started in the "meth map" and switched to pump gas the "WGDC" would hit points not even close to what I requested regardless of the correction factor if any. The fuel would work perfectly always. Just the boost address was flawed or is flawed.

 

Right.

Happy to get this resolved asap, but I need an accurate description of the problem and some logs would be great.

* Does it happen on normal maps or only altmaps
* Have you logged 0x8429 to see what maps you are running

Post up a log of the bug occurring.

I am surprised this hasn't been reported earlier since 5.10 has been out for a while, but I will get this fixed tomorrow if I can get the above...

 

edit - Just re-reading the thread.

Can you also log air temp, if the WGDC are staying the same but the boost is dropping then perhaps this is a temperature issue...

 

Or a bad boost leak, or a wastegate malfunctioning, or a blown exhaust manifold and/or blown turbo gasket.

 

Well, my fiancee and I just did some logging for about an hour after we went to Hooters. I logged just the standard maps and it started out around 24 psi and we kept trying to adjust it for a smooth boost curve for 23psi straight across. We would adjust the dips and bumps by .5 to 1.5% where it was needed and do another run. The boost was all over the place. By the time we got even remotely close to 23psi we were running over 3% higher WGDC than originally but with lower boost levels. It gets to the point where its a battle not worth fighting.

I didn't log any intake air temps but I can tell you from past experience that my intake air temps are pretty consistent from pull to pull.....at the intake. It would only be useful to have intake manifold air temps IMO. I's sure they go up as we did more pulls but most pulls had a good 15 minutes between them with a solid 5-10 minutes of highway cruising which would bring the temps back down easily.

I can post some logs but half of them had the WGDC tables altered to try and tame the boost curve...to no avail. Maybe I'm just tuning the base WGDC curve wrong? All I know is, one spot i quickly looked at was hitting 23.4psi at 77% WGDC earlier and now it hits 22.1psi at 80%WGDC at the same RPM, both during a 3k-7k 3rd gear pull.

 

Well I don't know what to tell you - if the WGDC isn't changing and the boost is then this isn't a ROM issue.

Is this during spool or after? Spool boost is hard to compare as its very much dependent on when you start the pull as well as load on the car.

All I suggest is disabling TBEC, going and doing 2 back to back pulls and posting the logs for all to see...

 

It would be useful to have intake (at the MAF) temps if this is an ECU issue as that is where the ECU records intake temp and uses it for compensation, etc.

I think I agree with Tephra, if the WGDC isn't changing I don't see how the boost control system is the culprit here. If Error Correction had some hand in it (over correcting or some such) then you would see it in WGDC change.

Can you post your WGDC table?

Random question, is your battery voltage constant between all the pulls?

Are you 100% sure you don't have a boost leak? I've seen boost leaks change boost from pull to pull depending on temp, etc.

 

I certainly don't have a boost leak. I can pressurize my setup at 30psi (warm engine) and it takes nearly 5 minutes to drop to 25 psi, the best I've ever had one of my cars sealed up! I have never even got to the point of activating the BEC tables yet since I need a solid target load curve first but I just can't diall one in.

Like I said, maybe its just me. I will try to log intake air temps and battery voltage. Usually I'm at 14.0 volts and it drops to about 13.6 at redline.

 

Why would I have similar issues and after switching roms my boost is perfect? This is not a wastegate issue it's a rom issue. Lets not make us seem crazier than we are lol

 

i havent tested back to back to back to back yet like Jack of trades has, but man my car feels good right now without the error correction on, im scared to put it on lol because i dont know how to adjust it correctly. Same rom as well. I wanna test it, but its hard to get back to back to back to back pulls like that in a big city like Houston.

 

Well, since I'm not using ANY correction yet I can see where this could very well be an issue on my part...for my issue at least. The issues people have with the maps switching but the ECU isn't changing to the appropriate boost maps is obviously more ROM related. I did some logging but forgot to tick the ZTX boost (doah!) so i will do more today. My Air temp goes from 80,peaks at 83 to 86 and comes back down to 80*. Battery level goes from 14.0 volts to 13.5 volts by redline.

 

Ok. Attached is a log with Air Temp,WGDC,TPS,BOOST +more...i am attaching a screen shot of a specific rpm where it's off by a good 3%/4% on Alternate or pump gas map.

Here is a screen shot of the exact same flash w/ Alternate WGDC,BDEL + Pump GAs...you can do the math and see it's off. Like i said, as soon as i changed the map the boost was correct and would go up or down when i made a change.

SCREEN SHOT(look at 5000rpm):

 

sounds like Jack_of_trades might just be having a tuning issue not related to an error in the patch.

Evoryder's issue looks like an error in the patch as WGDC is changing for some reason.

 

A lil off topic, but what turbo and plugs are you on? I wish I could get 8 degrees of timing without any knock at 260 load lol.

 

Evoryder looking at the attached log and the screenshot i did notice the air temps were diff by 20 degrees could that be why on the hotter temp(126deg@ 5000rpm your wgdc was 73 and the colder temps (106deg@5000rpm) your wgdc was 77