OK, thanks. I'll take a look at that. Sounds like a better option than cutting fuel.
BTW, is there a writeup anywhere about how the COS valet tune works?
Type: Posts; User: Rich Z; Keyword(s):
OK, thanks. I'll take a look at that. Sounds like a better option than cutting fuel.
BTW, is there a writeup anywhere about how the COS valet tune works?
Thanks for replying. I've already considered that but am concerned that if those limits cut fuel delivery, will that cause me any issues with the engine running lean. I've just hooked the wideband...
So, was this just too dumb of a question for anyone to want to bother addressing?
I'm thinking about taking my 2002 C5Z to get a new front bumper fascia installed and painted sometime soon, but really don't want someone possibly joy riding the car while it is there. The car is...
Wow! Lots of GOOD stuff in that referenced thread!
Well, the last time I did a run that went into boost, I simply put it in fourth gear and just ran up the RPMs. At 69% throttle at 1751 rpm I was already at 105kPa. I was at 182kPa at 3700 rpm when...
What will a B3618 table look like on a typical boosted car? Sloped downwards sharply when boost kicks in and then flat lined out to redline with 0.78?
OK, that makes sense. And it actually might be relevant in my case since I am getting that REP fault at startup, so maybe the PCM is getting confused when it goes through the motions of testing the...
Yeah, I know this is an OLD thread........
I've been having an intermittent startup problem with my tune whereby I will get a REDUCE ENGINE POWER issue that flashes alternating messages about...
Well, didn't help much when I smoothed out B0101. Been trying a bunch of stuff. Actually lost track of what exactly as I was just pulling over and making changes, so I didn't jot down any notes. I...
Thanks.
I see what you mean by B0101. I smoothed out that range to make smoother transitions between cells, so I'll see if that helps. And I'll take a look at A0009 as well and increase the...
Sorry, been away for a while. Mostly because of rainy weather.
Anyway, got the new wastegates installed and did a couple of runs with them. Boost is now hitting 11.6 and 11.7 psi. Everything...
Attaching the wastegates directly to the turbos just seems more efficient to me. I am using 14 lb springs, expecting there to be some loss to compensate for at the intake. These are rear mounted...
Yeah, it still startles me when the turbos kick in. It's like a giant hand on the back of the car giving a huge push.
Well, I'm going to go ahead and start changing out the wastegates, and...
Well, I'm seeing some pretty lean figures in my map from my last log, so won't this filter out those cells as well? Since switching to E10 gasoline, it's made some rather lean cells up in the higher...
I've got a question about the filter being applied to the map. Specifically this one:
Why are the values over 1.06 being filtered out of the data?
Was able to take the car out today (actually Monday). Yesterday I put the opened fittings back onto the top plate of the wastegates so they would be open to atmosphere. I wanted to see if that...
Ah, yes. I've been trying to think of why hooking the wastegates up to the intake manifold could be bad for anything, and you provided the key to my understanding. The blow off valve is activated...
But should ALL misfires be hidden? It looks to me that they are all disabled. Suppose there really are misfires taking place? Wouldn't I want to know about them?
The wastegates are now...
Update:
Been raining most of the time since I last posted, but I did get to take the car out and rill the gas tank with E10 93 octane. Started re-calibrating the VE table.
I pushed it into...
Interesting.... So when you say the STFTs are zeroed, that implies that they are a cumulative average over a period of time. At least to me, anyway. So they really aren't instantaneous? Just...
OK. I think.
The way I've been looking at this might not be the way that tuning actually works.
But perhaps the logic path I have taken to get there is wrong.
I'm looking at airmass as...
And speaking of negative logic, I need to make certain that I am looking at something correctly.
When I created my map from B0101, I'm using the data parameter from BEN factor Bank 1, Serial...
I know I've probably looked this up or figured it out in the past at least a dozen times, but do positive trims (STFT and LTFT) mean that the fuel mixture is actually LEAN or RICH? I can see how it...
I've got a question about this method of working with table B3647. If you set the low to mid kPa cells to something like 0.98 (mine is set to lambda, btw) and do the calibration of the VE table with...