ok maybe i don't get the concept of the solenoid...

because my solenoid stops air through only at full power...

which means.. i have to have constant power on the soleniod to keep the butterfly closed...

i always thought that the soleniod would be closed and then let air through when it had power. (i.e. from a manual switch or rpm switch)

so what i have to do now to keep the butterfly's closed is give the solenoid full power via a switch and turn the switch off to open them... which makes no sense to me.

what am i missing here?

 

Are you saying the VI stays open (high RPM mode) when not WOT? If so, what you have to do is change the vacuum tubes. Take the sponge off and put one of the vac. tubes there. Then take the other vac tube and put it on the port on the same side. Leave the silver nipple open. I taped the foam on to the silver nipple. I hope that's the issue you're talking about. I'm sleepy. =P

ZuM

 

it might be.. thanks Zum.. i will check it in the morning..

i thought the one with the sponge was for Vent.. guess i was wrong

 

Yeah, I think thats your problem. I had the same problem. Just hook up the hoses like I described and enjoy. Someone on the forum here helped me with the problem so I'm passing it along.

Tip, cut the metal that holds the sponge with some clippers. I actually think I used a ziptie to hold the sponge on the silver nipple after I removed it from the nipple it was on. Your setup should have two hoses on one side and the open silver nipple on the other.

ZuM

 

yes remove the sponge, put your canister hose on that. the other black fitting takes your acuator hose. the silver fitting is the vent to open air.

--Paul

 

OK for once I get to say "This has been covered".
you have it backwards. the vent and the outlet of the actuator are on one side. If you have it backwards you will get at rest vaccum and when switched the iar coming from the vent. The one with the sponge is the vent.

 

Thanks for helping me out on that one in the past, Paul. =)

 

Search is your friend

 

So did it work?

 

judging from your picture from a previous post your GM solenoid is different than the one everyone else it running. the solenoid you have may indeed have the sponged inlet as the vent, but the one that is part # 1997152 from www.allgmpartsonline.net ($11) uses silver inlet as the vent. i believe this is the part that everyone received in their installation kits from one of the group dealers.

--Paul

 

At least your problem is only a vacuum problem. My stupid Harlan doesn't work or I did something wrong, but I've redone all my wiring and everything to make sure of good connections and still no dice. I hate electrical things sometimes.

 

Are you pulling your signal from the coil pack (best place)?

Is your Harlan set to "one coil per plug"?

Where's your power routed to?

Where's your ground routed to?

Does the unit even come on?


Dave

 

I'm pulling my signal from coil 1. There are three wires (red, green, and yellow w/stripe) that plug into a plastic connector. I attached to the yellow striped wire.

What do you mean coil per plug? Do you mean number of cylinders? I have that set at 6.

Power comes from battery.

Ground is to a bolt on the side of engine.

Switched ground to negative side on solenoid.

I can set the harlan's # of cylinders and rpm signal. But when the rpm hits the LED never comes on showing it's getting the signal.

 

You need to set the harlan to "Coil per cylinder". It won't work if you set it to 6.

On a single coil v6 you get 6 pulses per rev. The harlan is expecting to count 6 pulses as one rev. When you attach it to an individual coil pack you are only getting 1 pulse per rev. The harlan counts 6rpm as 1rpm.

With your current setup you'd have to hit 30,000 to trigger the harlan set to 6cyl 5000rpm.

Set it to coil-per-cylinder and you should be fine.

 

Ok so if it's set to coil 1 you would set it to 1. If it was coil five you'd set it to 5. Am I understanding this correctly? If so then my problem should be solved. But I'll soon find out.

 

No, there is a setting for per coil. Just do this.
Set the dip switches for.
0000100

0=Off
1=On

Then hold down the 1st button for 2 seconds. That will program the harlan for coil operation.

ZuM

 

Yeah I see that now. I'm dumb. I must be blind because I didn't see that before. No wonder why my MEVI hasn't been working.

 

We've all done stupid things. =P Enjoy having high end. =)

 

I very well could have been wrong about the vent. Mine did not have the sponge at all. But I installed mine backwards at first as did a couple others and it exhibited the exact same symptoms.

 

thank you kind sirs

it worked perfectly.. VI is fully functional..

i guess being a nitrous owner i was expecting more than i got, however it still pull for a second there i didn't know if it was working or not

 

Nitrous is still the best bang for the buck. =) But, now you might not have to use the bottle as often.

 

bottle is in my bedroom its holding up my helmet now

 

You have the tube running to your bed? =P

I had to stop myself from getting nitrous. I know it would only get me in trouble. Bedroom is the safest place for the bottle till track time comes. =)

Next step, hook up LED to RPM switch so you can see when the VI comes on. What RPM do you have it set at?

ZuM

 

i only have a 4600 pill right now.. i will go pick up a 5000 pill soon

 

Pill? MSD switch? Really, the Harlan isn't bad. And I love not having to use pills. It hasn't flaked on me yet. And I keep an eye on it with the LED.

 

NOS Switch

 

Where would you hook up the LED wires to, in order to do this?

 

Get a 12v LED. Hook up one end to a 12v positive source. Hook up the other end to the white wire (switched ground) that comes from the rpm switch. When the RPM switch goes off the switched ground will be put to ground and turn on the VI and the LED.