I am attempting to tune my GP, as I am running a 2.8 with a 5 speed. I found a bin file that was supposed to be for a manual car. I've noticed that BLM is not changing from 128, ever. What would cause the BLM to be locked at 128? Is there something within the code like: if coolant < xxx lock blm?? I've been looking, but unsuccessful so far.
Thanks,
Jon
When the BLM is locked at 128 it means the car is running in open loop. You need to figure out how to get it back into closed loop, I dont know how but a few folks on here do.
Ken
That's the odd part. It's just BLM that's locked, integrator is still changing, and according to my aldl output, it's in closed loop. When it goes to open loop, INT locks at 128.
After looking at other forums, is it a possibility that it has something to do with the car being a manual, and the computer not seeing it in drive?
Quote from: GhrarhG on June 09, 2008, 05:25:00 PM
I am attempting to tune my GP, as I am running a 2.8 with a 5 speed. I found a bin file that was supposed to be for a manual car. I've noticed that BLM is not changing from 128, ever. What would cause the BLM to be locked at 128? Is there something within the code like: if coolant < xxx lock blm?? I've been looking, but unsuccessful so far.
Thanks,
Jon
Jon
Sounds like your bin is corrupted in some way. Did you down load it from a good chip or is it some internet stuff? Some times you could have a slow o2 sensor that is on it's way out that can cause that same problem..
Adam
My bad did not know your int was changing....Thanks Adam ;)
I downloaded it from another site. Unfortunately, I do not know of anyone with a working 5 speed chip. If anyone wants to send a basic 5 speed bin this way I'd appreciate it. I've had this problem with both o2s i've had. I was using the stock NB, but now i've gone to a WBo2 that's got a NB output, and it's still the same issue. Looking at the WB output, it seems to be changing quite quickly.
How many miles have you driven the car? Could have something to do with the learn control enable conditions have not been met or it could be a simple grounding issue... Is the car all stock or have you turned some wrenches on it? If I remember correctly you met me here at the shop and bought some TGP specific parts. When will they be installed? :icon_mrgreen:
You remember correctly. I have all the TGP parts on it right now. The only non-tgp part is the engine. I've driven over 1000 miles since i went turbo.
What effect would a grounding issue have? I am having some trouble with my map sensor at present, that I think may be a grounding issue. I'm getting a code 33, high MAP sensor. Looking at the ALDL datalog, it shows a spike up to about 200 kPa when cranking. I've checked resistance across all points of the ground wire, and it's ~0.8 ohms at the ECM, battery, and block. Other than that spike, the sensor is reading fine(ie. matches my boost gauge.) I even swapped it out with my 1 bar, and the same spike occurs while cranking, so I don't think it's the sensor.
I pulled the engine last Thanksgiving to replace the clutch and install all the turbo parts. A lot of stuff was changed then, so it's hard to narrow it down. I eliminated the MAF sensor. Moved the wires for the MAT (which was formerly within the MAF sensor) so that they would make it to the TGP MAT location. Moved the remaining MAF wires around so that the ECM pinouts were for the waste gate solenoid instead, but the MAP wires have not changed, nor the ECM pinouts, and the signal wires for the MAT have not changed function or pin location, just physical location.
Again, i've tripple checked all the connections to find and open, and it does not seem to exist. Could it be within the ECM itself?
Quote from: GhrarhG on June 10, 2008, 09:32:53 PM
What effect would a grounding issue have? I am having some trouble with my map sensor at present, that I think may be a grounding issue. I'm getting a code 33, high MAP sensor. Looking at the ALDL datalog, it shows a spike up to about 200 kPa when cranking. I've checked resistance across all points of the ground wire, and it's ~0.8 ohms at the ECM, battery, and block. Other than that spike, the sensor is reading fine(ie. matches my boost gauge.) I even swapped it out with my 1 bar, and the same spike occurs while cranking, so I don't think it's the sensor.
I pulled the engine last Thanksgiving to replace the clutch and install all the turbo parts.
Again, i've tripple checked all the connections to find and open, and it does not seem to exist. Could it be within the ECM itself?
Take your vacuum line to the Map sensor and run it straight to the plenum in front where the vacuum line is for the trans. Just "T" right into it temperately while capping the original source off (to prevent a vacuum leak) .
Let us know the outcome.
Are you running the TGP code? Check all grounds coming for the computer and if you have a spare swap it out. What part # is the computer your running? Also if your getting a code the computer might be in limp home mode not allowing corrections... ;)
Adam I thought I was the only 2.8 T ;) I had the same error code on Monday when I put my rebuilt engine in. I changed the map sensor and checked out the vacumn lines. That seemed to fix it. Are you getting good connection at the MAP sensor harness? You might want to check out that harness to make sure all the pins have tood connections.
If you got your 2.8 T 5 speed bin chances are it is a stock TGP bin with the manual flag checked. Your going to have to do a lot of tuning to get that to work with your setup, speaking from experience here...........I have a similar setup to yours
The WB02 is a good thing which one did you get? I'm running the LC-1 and using the narrowband output to run the car in CL. It works really well. Is the o2 located on the turbo or did you weld a bung downstream? I would recommend it being at the bottom of the downpipe before the cat, that is where mine is. The sensor should last longer down there.
Ken
TGED, I dont thing it's a vacuum issue, because the spike that i'm getting while cranking is up around 13psi of boost. Only thing I could think of giving me that would be a backfire, and I'm not hearing that, but I will try later anyway. I am running a TGP code. I do not have a spare computer, it is a 1227727 stock w-body ECM.
flybynite, would turning off the code 33 flag allow it to change? If I disable the code, the light goes out, but still BLM locked at 128.
cobracmdr, I shaved the tab on the TGP map sensor so that the stock plug would fit. I think i'm getting a good connection, the tab locks, but I don't know how well it's really in there.
I actually built my WBo2 controller. It uses the same bosch o2 sensor as the LC1. I would have gone LC1, but at the time, I was broke, and had time to build my own. Here's the link, http://14point7.com/JAW/JAW.htm (http://14point7.com/JAW/JAW.htm). Right now I don't have a gauge, so I modified my code and ECM to use the WB patch, and I'm using the ALDL through my laptop to read AFR. I am using the turbine bung. I'm planning on making a larger custom downpipe in the near future, so I will probably relocate then.
The code I started with I found at domesticrew, and it's labled RyannewJune23. I found a link to it on J-body, and most people seem to like it. I've made some changes to VE and Idle VE to help out my 2.8, but haven't gotten very far due to the error code.
I'm leaning on it being a ground issue, but i've checked all the sensor grounds against the battery, and the resistance is ~0.8 ohms or so.
Could it be in the chip adapter and ZIF socket? Has anyone had trouble with the moates adapter socket?
Nice, yeah the LC-1 I'm running is reading right into the ecm and logging in tunerpro rt. I also have a moates o-meter on the dash for when I'm not sporting the laptop. From my experience the VE table will need to be changed for the 2.8 as well as the base table. Good call on getting the map sensor error figured out first....you need to get that figured out before you can think about tuning. Are you sure you are using a 2 bar map? Are the vac lines under the manifold in good shape? What about your throttle body gasket? Is that ok?
You might want to try another 2 bar map sensor, that could be your problem.
Ken
I believe i'm using a 2 bar map, it's the one i bought off Adam a year ago. I haven't actually checked the PN on it to see if it was, just took his word for it. But at any rate, when I plug in my 1 bar map, it still makes the pressure spike. I'm pretty sure it's an electrical connection problem, but I just can't find it. I may go to the JY and get a map connector and just run the wires straight to the ECM to check everything. I may have more time tomorrow to try other possibilities, today was just too damn busy.
Even though the BLM is locked, i've been using the integrator to modifiy the VE tables. During my road trip I got quite a bit of that tuned. Still need to work on low RPM though.
The vac lines seem to be in decent shape, but I don't think it's a lack of vacuum so much as it is a "pressure" spike. According to the ALDL data, it's actually positive pressure, which is why I don't think it's a leak so much as a bad connection somewhere. I don't see how I could be getting boost at startup unless it was a backfire, which I would hear.
I finally got some time to work on the car. I took all the grounds off the back of the engine, and cleaned everything up and put them back. The engine to battery ground seems to be in good shape. I've even hooked one of my jumper cables from the block to the battery to check and still nothing.
I took my chip adapter and ostrich out and just put in the stock AUAF chip into the ECM, and I'm still getting the error code that i was getting. I was having trouble with boost as well. I noticed that my waste gate solenoid was not closing. I've put power straight to the solenoid, and it is working, but it's not getting signal from the ECM. It's getting power, and i've checked and there is a gound signal coming from the ECM, but it seems like it's not strong enough to activate the solenoid.
So it seems like there is a ground issue still. I decided to check the chip. I switched to my original 88 2.8 ECM, and there weren't any codes tripped. I'm starting to think its the MEMCAL. Any ideas why my stock 2.8 chip wouldn't throw codes and the 3.1 would?
My car doesn't have a Park/Neutral switch being that it was a manual. Is there a possibility that there is some problem with that?
Thanks,
Jon
Quote from: GhrarhG on June 19, 2008, 07:24:44 PM
I finally got some time to work on the car. I took all the grounds off the back of the engine, and cleaned everything up and put them back. The engine to battery ground seems to be in good shape. I've even hooked one of my jumper cables from the block to the battery to check and still nothing.
I took my chip adapter and ostrich out and just put in the stock AUAF chip into the ECM, and I'm still getting the error code that i was getting. I was having trouble with boost as well. I noticed that my waste gate solenoid was not closing. I've put power straight to the solenoid, and it is working, but it's not getting signal from the ECM. It's getting power, and i've checked and there is a gound signal coming from the ECM, but it seems like it's not strong enough to activate the solenoid.
So it seems like there is a ground issue still. I decided to check the chip. I switched to my original 88 2.8 ECM, and there weren't any codes tripped. I'm starting to think its the MEMCAL. Any ideas why my stock 2.8 chip wouldn't throw codes and the 3.1 would?
My car doesn't have a Park/Neutral switch being that it was a manual. Is there a possibility that there is some problem with that?
Thanks,
Jon
You said you changed computers or just the 2.8 memcal? I have no Park/Neutral switch either.........and my car runs perfect. If you changed the computer that could be your problem?
Ken
I'm still using the same 1227727 computer. The only thing that was changed was the memcal. I switched back to the 2.8 memcal, and the codes went away. I put the AUAF memcal in, and the codes came back. So to me, that says that it's not the chip adapter or the ostrich that's causing problems, and it seems like the chip itself. Is is possible for a bad memcal to cause these problems?
If so, does anyone have a spare TGP memcal?
Thanks,
Jon
Sounds like a corrupt bin/memcal. Try a new memcal and new bin.
Quote from: TGed on June 20, 2008, 12:38:37 PM
Sounds like a corrupt bin/memcal. Try a new memcal and new bin.
Sorry It"s been a while since I"ve posted, but it's been real crazy here... I also think youn have a corrupted bin. If you need, I can hook you up with a good bin..
Adam
A good bin would be fantastic. I suspect the memcal as well since running straight without the G1 adapter is still throwing codes that the 2.8 chip isn't, but Adam, any bin you know to work that you want to send this way would be greatly appreciated.
Does anyone know of a memcal for sale?
Thanks,
Jon
Quote from: GhrarhG on June 21, 2008, 12:12:14 AM
A good bin would be fantastic. I suspect the memcal as well since running straight without the G1 adapter is still throwing codes that the 2.8 chip isn't, but Adam, any bin you know to work that you want to send this way would be greatly appreciated.
Does anyone know of a memcal for sale?
Thanks,
Jon
I will send you a good known stock bin tomorrow when I'm at home. The memcals barley ever go bad, usually it's the eprom that fails and it's replaceable. PM me your email addy. later
Adam
PM sent
Adam, had some trouble, sent you a PM
Jon