Has anyone ever seen this...
Vats link
I found it last night and thought it might be helpful to anyone doin the swap
lata
Jared (84'fxrupr)

Yes. don't know if anyone has used it though.

It is interesting that the ad says it is for installing a GM engine equipped with VATS into cars not equipped with the Body Control Monitor (BCM). I'm not that familiar with the LT1 & LS1 engines, but my understanding of VATS on these cars is that the VATS system is not on the engines it is on the car wiring circuit itself.

Sort of. The module itself is mounted in the car, but it ties directly into the ECM. If the ECM doesn't get the signal from VATS, car doesn't start.

I am familiar with where the VATS control modules are located in the cars and how they are tied into the ECM. My comment was in regards to the ads referral to GM engines with VATS installed on the engine itself.

Ahhh.

VATS doesn't have anything to do with the BCM either

I used it on my swap and it works great. IMHO its better to use this in conjunction with a hidden kill switch, rather than deleting the VATS all together. Just put a switch on either of the wires hidden somewhere and make it tougher for any thief who wants your car bad enough.

VATS is directly related to the BCM. The Body COntrol Module checks the
key resistor pellet for proper value.

Once the security checks have been completed, and all inputs are 'true' the
fuel pump relay and starter relay are enabled.

The BCM also controls the windows, horn, lights, alarm, etc. when used
with the key fob transmitter. It's that annoying module that sounds a tone
when you leave the key in the ignition and the doors open

Good job digging up a 3.5 year old post, and for a swap it really doesnt matter because thirdgens dont have a bcm.

No kidding

Did it ever occur to you I was looking up some information and happened
to stumble across this post?

Anyone reading this will now have an understanding of how the VATS is
tied into the BCM for LS1 motors (as questioned by Tamatt27).

Well, even if you are trying to pass off what you posted as helpful info to those in the future, the info is wrong, you stated that the bcm enables the fuel pump relay, which isnt true, the BCM acts just like the vats boxes used in LT1 and thirdgen vehicles, sending the correct fuel enable signal to the pcm, then the pcm will allow the fuel pump relay to turn on.

Wow, you're a **** and you can't read.

Where in my post does it say the BCM controls the fuel pump relay?

My post says:

THe BCM provides the ground path for the starter relay, the PCM provides
the Fuel relay enable.

Neither can happen until the VATS check is cleared.

Gee, I guess that LS1 shop manual I have doesn't provide me with the
correct wiring diagrams either?


If my info is wrong, then you better call up AllData and break the news.

I can't believe some people on this forum. I bet you're the same guy that
complains when a new post starts and the guy doesn't do a search.

Go play.

Now come up with half a reason any of how the bcm enables the starter relay applies to a swap into a thirdgen.

Like i stated, it doesnt matter for a swap, yes, you corrected the earlier info where someone posted that VATS isnt tied into the BCM, because their information was based on Thirdgen, and LT1 cars, good you pointed out that the BCM replaces the vats box on an LS1 car, however it helps nobody with a swap because it would be extremely cost and time prohibitive to bring the BCM over into a thirdgen.

Wow, you've got access to alldata, big deal, half of tgo probably does now too.

Why do you have to bust my *****?

Look at the title of this topic, and look at the question I'm addressing.

No you don't need a BCM to wire the starter for an LS1 swap into a 3rd gen car.

I'm simply updating the correlation between the VATS and BCM in this
post along with some bonus info...yey for me!!111!!!1

Sorry for digging up a 3.5 year old post, maybe I should have started
a new thread and had you jump all over me for not using the search
function. I guess I can't win huh?

If you must know, I was looking up an alternative to HP Tuners to
disable VATS in order to save my customer some money. If you
stick around long enough, I'll link you up to some shop pics of an
LS1 swap.

I'll have a copy of my Alldata subscription next to me in the photo

Yey for me and the internet and Thirdgen.org!111!!!1one...one...1

Really ? Pictures of an actual swap ? For me ? Awesome !


Alternative to programming vats out, maybe you should have asked, instead of digging up an old post, with useless info.

http://www.jegs.com/i/Painless/764/64024/10002/-1

Keep it civil, dudes.

(Note the use of the plural.)

Thanks for the link 'dude', but I had already found my answer using the
search feature; hence no question posted.

Now please excuse me while I sit in the corner and serve my time for
digging up an old post. How dare I answer a question on a message
board from years ago.

LOL, that looks like more of a question to me but who cares really. This thread got interesting even if it is from the dead.

Most people know by now that if you have a VATS problem, the symptom will be the dreaded start up for two seconds and promptly die scenario. Which contradicts some of the above arguing, but is eaisly fixed with either the "box" or some simple programming via HPTuners.

For anyone trying to swap over a 4th gen column, BCM and all components.......... Good Luck.