I may have the wrong duty cycle table in there. Compare the duty cycle table from an LM cal and copy it if it's not even close to being the same...Originally Posted by Force Fed Mopar
I may have the wrong duty cycle table in there. Compare the duty cycle table from an LM cal and copy it if it's not even close to being the same...
Not sure yet, will find out.
I was thinking to copy the DC table from my Shelby Z cal, since the whole top end is off of it. Was gonna ask if the T-LM T2 and the T-SMEC T2 controls were the same, you must have read my mind lol.
The boost control isn't exactly the same, but it's the same type, so the base WGDC table should work. In fact, it is almost the same as the actual '89 T2 WGDC table. As soon as SDAC is over (and I can get back to the desk at my day job and relax, lol) I'll post the fixed tables...
I changed it to match my T-LM cal and it still doesn't boost up. I have the g-valve on it now so on the way home I'll find out if I can get more boost with it, if not then I guess I have a wga problem.
Well I get plenty of boost off the g-valve. Time to start playing with the boost controls. BTW Rob the T-SMEC T2 WOTDC table was way different than the T-LM table. Also, you can't compare it to any of the other because the name is different. Which I suppose there isn't any real fix for, just thought I'd mention it.
OK, there was an error in the T2 boost control call. I fixed that today and confirmed that it works. I'll post v18.1 later, maybe tomorrow. I'll also be adding the T2 boost control to the SBEC code as soon as I can. It's a little more complicated since there will be 3 different boost control schemes. So, I may change how the BC type is selected to make sure it is mutually exlusive.
I think I do have a solenoid problem, I dropped the DCWOT table 20% and it didn't change anything. Maybe my solenoid is dirty, it hasn't been used in a long time.
Checked the solenoid this morning, it is bad, can feel it clicking but it doesn't close. Purge solenoid worked so I swapped them, we'll see if it works on the way home.
Still isn't working. Maybe somebody mixed up the plugs on the solenoids, I'll check that today.
BTW what is the purpose of the 2 different control types? Is the T2 boost control able to hold higher boost levels easier/steadier?
Personally, I think the T1 is better. It has a fail-safe mode so that if the solenoid fails, you get only 7psi boost. Where the T2, if the solenoid fails, you get no boost control at all.
But, it seems that everyone has trouble setting up the T1 BC, so I added the T2 as an option.
Both the T1 and T2 are going ot be limited to about 24psi (I think) with the factory solenoids. Much higher than that and I think you'll get into flow limitations.
Checked my solenoid, it has the right plug hooked up to it (light green wire). I dunno wtf is wrong with it, doesn't matter what I do, I get 8 psi. I scaled the DCWOT table down 20% and it made no difference.
If it's the T2 style, set it to 0. If it still doesn't work, then the plumbing isn't setup right. If it's set to zero, you shoudl have no boost control At 0% DC, the WGA will never see the manifold pressure...
So at 0% the solenoid never comes on right? Should be the same as unhooking the line from the wga?
Right, should be...
Well did that and 5 psi solid at WOT. Gonna try one w/ 100% DC and see if it overboosts. Maybe the table is backwards?
The table isn't backwards, but your WGA plumbing might be. For the T2 boost control, it should be plumbed up manifold-solenoid-WGA, with the solenoid plumbed normally closed. If you have it plumbed at the solenoid normally open, then it would seem like the table is backwards...
This is how I have it plumbed. The solenoid is open if no power is applied to it.
So, with no power, manifold pressure is vented to atmosphere? Or, it's open to the WGA? What about when it's powered? Which way does it flow then?
It should be (for the T2 boost control) that the WGA line is vented to atmosphere when the solenoid is not powered, and then switched to manifold pressure when the solenoid is powered.
That is the way it shows to hook the lines up in the factory T2 diagram. I used a power probe to activate it, not sure if it normally has power or not while running.
I did make a cal w/ 100% dc and still doesn't overboost. Maybe its not activating the T2 boost control? I'll check that I have it checked.
Checked my cal, it does have the box checked for T2 Boost. I changed the T1 DCWOT table to 0% and now it overboosts. So, checking the T2 box is apparently not activating the code.
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