HOW TO: Remove MIL's caused by deleting the VTCS system

[SSinstaller]

I used a dei 8616 relay, it's very small, and can be found for less than $10. Just about any 1~3 amp diode will work just fine..

Red Connects to green/black at the vacume solenoid(86)
Black Connects to black/red at the vacume soleniod(85)
Brown No connection(87)
Orange Connects to a wire at the plunger(87a)
Yellow Connects to a wire at the plunger (30)

It's basically a starter kill relay with the triggers connected to the vacume soleniod and the contacts connected the to the plunger(the polarity doesn't matter here, just cut the plug off the pluger and wire it up). I used a DEI 8616 relay(because it's small), and a diode I had laying around. You could probably just go down to a stereo shop and buy a starter kill relay, the wire colors might be different, but it will still work..

Wire it up and you can completly remove the VTCS solenoid, vacume reservoir and the plunger, and you wont throw any codes. Just make sure to plug the extra vacume ports.

[kingpin748]

What's this for? You might as well put a explanation in here now, lots of people will ask.

[Grim]

Originally Posted by kingpin748 What's this for? You might as well put a explanation in here now, lots of people will ask.

did you read the title?

[SSinstaller]

When you remove the complete VTCS system you can throw two codes..IIRC you will get P2006 VTCS shutter valve stuck closed, and you might get VTCS P2009 variable swirl soleniod valve control circuit low. The relays coil being wired in elimiates P2009, and the connections to the pluger mimic the action of the switch on the pluger getting rid of the P2006. The computer thinks everything is there so it doesn't throw any codes..

[Grim]

does anything happen to your car like limp mode,or do you just have the annoying cel

[SSinstaller]

Originally Posted by Grim does anything happen to your car like limp mode,or do you just have the annoying cel

You just have the MIL..

[ATE BALLER]

What plunger are you refering to, just to be clear?

[dadasracecar]

Originally Posted by kingpin748 What's this for? You might as well put a explanation in here now, lots of people will ask.

http://www.mazdaspeedforum.org/forum/foru...w-project.html

[SSinstaller]

Originally Posted by ATE BALLER What plunger are you refering to, just to be clear?

When the vacume canister moves the actual rod in the IM it has a tab that hits a little plunger type switch, it's how the ECM knows the VTCS system is working properly...

[kingpin748]

Originally Posted by Grim did you read the title?

Screw you.

[Grim]

Originally Posted by kingpin748 Screw you.

lol i wasnt trying to be an ass if i came off that way,i was just asking cause the title pretty much explains what its for.

[CraigHJr]

HAHA sorry to be picking your brain here but I was also checking the wiring for this trick on the Sped 3. Just to be clear the "vac solenoid" is on the black plastic box between the #2 and #3 runners. Then the "plunger" is the cylindrical thing under the gray plastic dohicky on the trans side of the intake manifold. The plunger has 2 wires and goes to a gray connector on the opposite side of the gray plastic do hicky. The 3's wire colors match what the 6 has on the vac solenoid so this write up should work on both cars then. I will try it before I take off the manifold and gut it just incase though.

[ATE BALLER]

As long as the colors match the orientation on both cars, then yes it will work the same. That would suprize me, cause nothing else seems to match up easily between the two.

[jhershorin]

So all i did was take the rod out and cut it off right before the plastic part that attaches to the ball socket that goes into the plunger. This way it all still works but there are no flaps. I am getting a p2006. wtf?

[superskaterxes]

how bout an option to delete the EGR code?

[SSinstaller]

Originally Posted by jhershorin So all i did was take the rod out and cut it off right before the plastic part that attaches to the ball socket that goes into the plunger. This way it all still works but there are no flaps. I am getting a p2006. wtf?

That's the purpose of the relay, it tricks the ECM into thinking the flappers are still working.

That plunger needs to move when the VTCS is actuated, if it doesn't the ECM thinks the flaps are stuck...and throws the DTC P2006 (variable swirl shutter valve stuck closed).

Originally Posted by superskaterxes how bout an option to delete the EGR code?

I checked into this last year for whoosh.. The EGR has 4 differnt modes of operation, and must return the corresponding proper voltage change to the ECM when each is activated. The problem is that the EGR test is done by the computer using the dealer scan tool and the neither the service manual nor the electrical manual list the specific voltage changes that should occur. That's not a huge issue as long as you are willing to leave the EGR itself in place and connected. The real issue is that the ECM actually monitors the MAP to insure the EGR system is flowing enough exhaust--there is no mention in either service manual of the voltage change that should occur when the egr is active. Even if there was it would be overly complicated to simulate the 4 difffernt modes of the egr operation while not influencing the MAP output at other times--even the resistance of a simple relay could effect the map ouput during normal driving.

This is a problem that will need to be solved in the ECM itself. Luckily I've been talking back a forth with Jordan at CP-E about thsi for a while now and they are very close to being able to delete these specific MIl's from the ECM firmware...

[socks]

worked for me, but i just used a cheapo relay. couldnt find a dei microrelay...

[flz33]

Originally Posted by Speed3shon worked for me, but i just used a cheapo relay. couldnt find a dei microrelay...

Mind telling us exactly which relay you used? I cant get a hold of a DEI 8616 either..

[Jarods7920]

Ok for those who dont have a DEI relay and dont speak in colors. Here is a break down of the wiring to a SPDT relay.

85 black/red at the vacume soleniod
86 green/black at the vacume solenoid
87 No connection
87a Connects to a wire at the plunger
30 Connects to a wire at the plunger

[SSinstaller]

For those having trouble finding the DEI 8616.

http://www.amazon.com/gp/offer-listing/B000CJ05WW/ref=dp_olp_new?ie=UTF8&qid=1249930236&sr=8-1&condition=new

[jkunze]

Has anyone come across a detailed HOW-TO document with pictures for a complete VTCS system delete? I've found pieces here and there, but nothing complete.

[SSinstaller]

Originally Posted by jkunze Has anyone come across a detailed HOW-TO document with pictures for a complete VTCS system delete? I've found pieces here and there, but nothing complete.

Once the manifold is off it's easy to see what needs to be done, that's probably why there isn't a step by step how to. Just remove the actual flappers, and either leave the rod, or remove the rod completely and have the hole welded shut.

[marc15skate]

great discussion!!!!

[jkunze]

For those of you who have done the VTCS delete, have you experienced any cold weather issues or do you all live in the southern US?

[SSinstaller]

I'm in NC, and I've never had any issues. I don't see sub 0 temps or anything, but it gets down below freezing in the winter...

[cbunn79]

@BigO; peep this.

[blake0521]

I know this thread is older then old but none of the relays I could find have those color wires. They come with just black and grey. Any ideas? Would this one work? New Dei 8616 Mini Circuit Relay 20 10 Amp Prewired Directed 4 Car Alarm System | eBay

[Mattyhawk1]

You have an AP, why not just turn off the sensor?

VTCS Delete

[blake0521]

Because then I will be up to 4 not ready when I go in for testing. I am not sure if that test in my state only looks at emmsions items or the over all system. If it's the over all system I would fail the test big time which is why I want to solve it this way.

[Mattyhawk1]

Don't see why the dei 8616 you link to would be different than the one the OP posted.

I assume you don't have a way or don't want to install the oem actuator?

[blake0521]

I am going with a pnp mani so not vtcs.

[Mattyhawk1]

Gotcha. Kinda figured as much.

[Bill6639]

Thanks for the how to... I'm looking to delete my VTCS soon

[kvg823]

Haha, I was just lazy and took out the rod, cut off everything past the first hole, put it back in there and wired it back up.

[cld12pk2go]

Originally Posted by kvg823 Haha, I was just lazy and took out the rod, cut off everything past the first hole, put it back in there and wired it back up.

Same here. It has been fine for several years...

[blam1]

Any pictures of what this looks like? The white plastic part broke near the plunger so I'll have to wire this in to eliminate cel and pass smog in Ca.

[SURGESPEED6]

Originally Posted by blam1 Any pictures of what this looks like? The white plastic part broke near the plunger so I'll have to wire this in to eliminate cel and pass smog in Ca.

Did you get it figured out? Any pictures?

[blam1]

I did figure it out. The part that confused me was on the plunger. The plunger has a green and a black wire. I don't remember which one I connected to which, but it worked and CEL went away. I can confirm tonight if you need me too.

Orange Connects to a wire at the plunger(87a)
Yellow Connects to a wire at the plunger (30)

[SURGESPEED6]

If you could that would be great, that way I don't mess anything else up.

Originally Posted by blam1 I did figure it out. The part that confused me was on the plunger. The plunger has a green and a black wire. I don't remember which one I connected to which, but it worked and CEL went away. I can confirm tonight if you need me too. Orange Connects to a wire at the plunger(87a) Yellow Connects to a wire at the plunger (30)

[blam1]

Originally Posted by SURGESPEED6 If you could that would be great, that way I don't mess anything else up.

It's ghetto looking. Don't judge.
Orange and Black
Yellow and Green
The other two are listed. Hope that helps.