The V2 needs to be connected. :) The software looks for the V2 when the app starts up.
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The V2 needs to be connected. :) The software looks for the V2 when the app starts up.
Got it! Thank you. I did not know that. :grin:
Why would people want to disable VATS, if someone were to be using the PCM in a different Chassis or something?
Yes, using the motor/trans, wiring & ECM in a different chassis...Quote:
Originally Posted by E67boostquest
Oh ok, I figured you all weren't into getting your crap stolen. LOL
I am on my third 07'-09 5.3 Silverado engine conversion into a different chassis. All three required the starter enable wire mod to run. The first one I did in a Toyota 4x4 several years ago is using a 50 ohm 10 watt resistor (Radio Shack # 271-0133 $1.99 for 2). Simply grounding the wire will enable it to start also, but I didn't feel fuzzy inside. The second and third are using the stock relay box. Interestingly if I tap into the stock relay with a crank signal - no start; had to run an external starter relay and leave the original relay untouched. IM guessing GM does not want someone bypassing the start sequence from the BCM/anti theft system.
Now armed with G1220 I thought it would be cleaner and simpler to do away with the mod/wiring so I went back to the 07' LH6 to see what would happen. First I disconnected the resistor to verify no start - and no start. I changed G1220 from "+ signal" to "not used", no other changes. Flashed in the new cal. (BTW thank you for BBF) and ...no start. I reconnected the resistor and....start. I made at least ten crank attempts on each configuration.
Then I used the settings posted earlier in this thread with the resistor disconnected and....no start. I connected the resistor with those settings and...no start.
So that is as far as I got, I will try other settings when I can, and next week I will have access to the 09' engine I put in a Wrangler with the stock relay box and an external starter relay. All three engines are 5.3's with different OS's.
Can someone do a step by step of this ?
Like DL patch from here , apply patch how , ground which wire from PCM or starter .
Kind of broken information , fragmented , if you know what I mean .
Thanks .
I have a #12612384 e38 running #12617631 2008 corvette ls3 tune. I did the vats patch and turned off vats in the vats settings section etc..., but could only get it to fire for 2 seconds. So I did the starter relay mod. It fires up fine after the second crank. I just need to somehow add a pin and wire into the x1 connector.
Starter relay mod is: Find pin 52 on the X1 connector. run a wire from it to the trigger connector on a relay( I used a narva relay with a built in resistor) and then the ground pin goes to ground on the chassis. Pretty simple.
http://bur.st/~ivile/gemini-wagon/153022412-pin52.GIF
update on my situation. I'm working with an 08 ECM. I did the patch and turned G1220 to off. It would start then die. Sounded like VATS.. Well turns out the customer forgot to plug a hole in the back of the intake and i over looked it. Big vac leak. Pluged it up and she fire right up, purrrrs like a kitten. :D
Thanks for all the help though guys, learned alot for the next time i get into one. :)
Thanks for coming back and fronting with the real problem. Many dont :).Quote:
Originally Posted by hotrod
+1 thanks for posting back with the real problem/solution. :cheers:
No problem guys :thumb_yello:
Thanks again for all the help.
Thought I would share my findings with you guys. I’m running the 12614088 OS with a 6.2 from a GMC Denali that was transplanted into a Street Rod. I did everything this thread listed to do. Without the VATS patch the engine would turn over but no spark and no injector pulse. After the VATS patch we got spark but still no injector pulse. We had to apply a 100 Ohm resistor to pin 52 on the X1 connector to get her to fire up. And yes we tried the G1220 and it made no difference. Hope this helps someone else. This thread was a life saver for us.
You just added a 100 ohm resistor to the wire on pin #52? Thats it?Quote:
Originally Posted by finishline
Yep that's it. 100 ohm 1 watt resistor, one end to the pin 52, one end to a good ground point on the frame.Quote:
Originally Posted by GAMEOVER
You guys make me Rafff..:) Good job finishlineQuote:
Originally Posted by VEGASROBBI
I had the chance to change G1220 on the Jeep with the 09' 5.3 and it worked; don't need the resistor or relay anymore.
Still no go on the 07' with the ******4088 OS.
I just did 2 E38 Truck OS (2007 5.3ltr 12605898) (2008 6.0ltr 12617631) this week and didn't need starter relay or resisitor...Both fired up on first try...:D
Just got efi live and got it hooked up to my harness, just chose disable on vats but i guess didnt apply patch cause i dont know where you get it or really what its about, can anyone help? E 37
i turned everything off i could find in tuning options and whatnot then did total reflash but dont see anything about vats patch in v8 or 7.5, v8 doesnt really do anything but flash and read for me am i messing something up?
That is correct...
V7 software does the following:
- scanner,
- logger,
- calibration editor,
- ECM flash reader/writer.
V8 software does the following:
- ECM flash reader/writer,
- V2 setup/options configurer.
I'm not sure, but I think the VATS patch would be found in the tunetool, go View->Show Calibration Window and goto the Upgrade OS tab, if the patch is available it should be listed there.
[ someone who knows E37's might want to clarify/correct what I just said :) ]
Fixuntilbroke, welcome to the forum :cheers:
Thanks joecar, i just looked it says does not support o/s upgrades you may have to upgrade entire os but theres no full os listed or anything for that matter.
Have never worked with an E37. The VATS patch is usually part of the Operating System patches - visible only when the V2 is connected to the Laptop (just like electric throttle tables). Usually in the ECM>engine>operating system patch folder - typically near the bottom of the column.
Don't have access to tuning software currently ...
Regards,
Taz
Ah, when V2 is present, I understand, thanks :)Quote:
Originally Posted by Taz
Ok i used the tool to update software and the patch showed up
i applied patch and did full flash, got it running mind you i still have it hooked up to EVERYTHING steering column all computers stock fuse box etc, It wouldnt start with switch or anything, so i got to checking, the relay for run/crank had no power. So fused a wire at 10a and applied it to where power should exit relay, motor starts and runs fine like this, so i thought awesome! I started trying to disconnect crap to see what i can get by without seeins how i dont have any schematic. i unhooked vats computer or bcm whatever the interior black box is, nothing, anyway i was trying unplugging crap and trying to start. i got good noises with one of the wire block disconnected from bcu we'll call it by noises i mean clicking and whining of sensors relays etc. At that point in time i disconnected wires going to transponder reader on ignition but it wouldnt start so i applied power to starter wire, it started. but ran poorly and quit. so i was looking at my calibrations and i noticed that vats had to be in mode 2 or 3 to disable despite patch and all other settings off, so i changed it and went to flash it.
Nothing, no reponse i connected my other obd2 scanner no response although it powers up device, no signal. So i reconnected everything still nothing tried a hundred different re powers leave battery disconnected for awhile, and no response is all i get. At one point in time cluster flashed "reduced engine power" followed by "engine disabled" so i think ive triggered vats and am up shit creek. help
sorry just wanted to get all information out so you experieced guys dont have to coax one detail at a time out of me
:Throwup:
What is this engine in?
Post your tune ... myself and / or other Forum members will take a look.Quote:
Originally Posted by Fixuntilbroke
Regards,
Taz
i cant seem to figure out how to post file, tried upload image but it doesnt like the format. Its out of an 08 cobalt 2.2l mt Engine installed in sand rail, right now i have entire system pulled out of car, hooked up to motor and laying on garage floor, pedals bcu column etc, had it working this way, thought i had vats disabled but as i started disconnecting things like transponder reader i mustve done something cause i get no communication through obd2 port.
the tune has vats patch applied, just was never changed to type 2 and ive lost communication
HA basic uploader works
Trying a swap like this without GM service manuals will waste a lot of your time, and the time of others answering questions needlessly. The GMLAN (Can Bus) is linked or daisy chained throughout all of the onboard modules - ECM / BCM / TCM / EBCM etc. If you remove or disconnect a module the communication pathway is interrupted. You will need to bridge the High Speed GMLAN Serial Data Bus +, and High Speed GMLAN Serial Data Bus -, to restore communications.Quote:
Originally Posted by Fixuntilbroke
If communications are interrupted the engine won't start.
With a standalone wiring harness the GMLAN need only be routed between the DLC and ECM with a manual transmission, or DLC, ECM, and TCM with an automatic transmission.
Attached is your tune with some very minor changes.
Regards,
Taz
Noob walk of shame, got the tune, thanks taz i was trying to flash the vats changed to mode 2 when i realized problem taz. Dont know what/if you changed anything else. Anyway the real problem was i forgot to hook up signal for eps (electric power steering) which as i was taking apart harness noticed lan wires deadhead there and come out a different color, so not hooked up it effectively breaks lan circuit. New tune flashed, all is well now back to eliminating wires.
I have a question for the masses....
Installed a replacement ECU, couldn't get tech 2 to connect but flashed full OS and tune with EFILive and fit to native car that requires vats.
Can turn vats off and start etc but can't perform a relearn? I have tried with V7.5 and through DVT. Car is Holden commodore VE and ECU is E38 and I can only seem to replace ECUs if vats is disabled or unless relearn is done with tech 2 with sps approval.
While I realise the ECU needs to be programmed with tech 2 first, Will EFILive relearn or relink vats if the correct OS and tune is already on the ECU i.e 2nd hand replacement ECU sourced from wreck which is identical?
There isn't much info to guide you when you attempt to do a relearn/relink, what key cycles etc are required if any and is there a confirmation supposed to let you know if the relearn succeeded?
Hopefully others need to know this, perhaps anyone who has worked on mail order tunes will have an answer. I suspect vats off is the only answer without tech 2 but want to confirm.
Thanks,
Mark
ok guys i know this has been covered very well but we have been trying to get this to work and have had no luck. tune is attached please tell me i just am not doing something right.
just a little history with this so it may help. we are trying to install this ecm into a 10 vette we know that it is a truck tune. this is all just an experment as we are looking to be able to run the vette on flexfuel. the ecm is know to be good as if we install the orig OS it starts right up. once we change it over to the truck and disable the VATS the vette will not even try to fire. now it is a push button start would this have anythig to do with it. are we just chasing our tails trying to make this work. any info is greatly appreciated we believe it should work but vats is not allowing it and not sure why other than the obvious. thanks for the help
The ignition key / start button are connected to the BCM. The BCM communicates with the ECM over the CanBus network to allow the engine start.
Why not just enable / tune for Flex Fuel use in the original Corvette ECM ?
New to tuning, I have a E38 with 6.2L L92 I have tried all fix information posted here and can not seem to get around VATS. I have 12614088 OS with Patch applied full reflash more than once and have even put the relays in circuit for starter and ignition circuit. Please advise. This is set up on my Superflow engine Dyno and ready to run if I could only fix VATS, sets code P0633. I have TIS and Tech II so I could install another OS if needed.
Thank You
Tom
Sorry to hijack the thread, we'll make another one to get further with the problem solving.
Taz - that was the first thing we tried, unfortunately, after filling with 5 gallons and having FFV on, we did not get it to even attempt to relearn the fuel.