The peron who sold me the car said it has a resistor soldered in to hide the boost from the engine, The install was done in 02. I dont know jack about thsi which is why I am asking to find a mechanic to sort this out. My expertise is in encouraging molecules to react with one another, and I fear I may aswell talk to the pros on S2kI about that because most of the mechanical stuff u are talking about makes no fecking sense to me. Please help or help me to find someone who can do this for me correctly for a reasonalblt amount of money. Am I searching in vane? Should Iset the car on fire and clain the inuranse?

 

It's the air pump behind your bumper on the drivers side. Was it removed? Is it connected? Could be bad?

 

This is simply a surgical clamp. I now believe you have a much deeper problem in that the vacuum line to the MAP was put there for some unknown reason. Without knowing this reason, it may be very difficult to get to the bottom of this.

I think Billman is onto something. It would appear that the previous owner tried to go beyond the Comtech ESM and by doing so, he needed to put on that goofy vacuum line to the MAP sensor. I'm afraid you'll have to get someone to strip all that crap off the car and put it on the way Comptech meant it to be. Comptech had a very simple and effective way of hiding boost from the ECU with its ESM/map clamp device. The last owner went beyond this for whatever reason and perhaps has removed some stuff and didn't put some stuff back the way it should be before you got it. For all we know, the last owner could have had a few more power mods on that engine and required a few things changed to make it work. You need someone who is experienced with the Comptech kit to check all the hoses and wiring.

 

The vacuum hoses connected to the Map sensor are a used to bleed off boost from the sensor. The stock Computer can not see any Map sensor readings in boost.

Comptech used this mechanical device in the early kits. It has been replaced with an electronic unit called a ESM. The ESM's have been reliable, and troublefree unlike the previous version.

I see that you have a front mounted air to air intercooler. One of the charge pipes runs in the same area the air pump is. Did they remove the pump?

 

Slow, thanks for this vital piece of information.
My previous suggestions were based on there being an ESM present. Since there isn't, my idea of clamping off that line will not work. Best thing to do is to try to upgrade to an ESM. Having that line to the MAP is possibly screwing up the secondary air injection system (vacuum hoses). That's most likely why the previous owner had the CEL bulb removed.

 

Check valves vented to atmosphere and an extra line to the MAP sensor sounds like a Missing Link. A Missing Link is a mechanical means of hiding boost from the MAP sensor. Just an idea since I dont have a supercharger to compare it to. You shouldnt need it if you are hiding the boost electronically. A resistor wont hide boost but I believe a Zener diode would.

 

I've merged the 2 threads on this topic.
Here's a re-cap:

1.Ignore the Vacuum lines/check valve attached to the MAP sensor. They are not part of the air injection system. They are used for bleeding off boost from MAP sensor. At a later date, you should remove them and install a Comtech ESM.

2. Install a CEL bulb back in the cluster.

3. Make all of your other Vacuum line connections just like the ones in the threads XViper has pointed out.

 

This might be hard for him to do. If I "read" his earlier description correctly, those lines (to the MAP and to the open check valve) are "T'd" to the secondary air injection vacuum lines. Would "T'ing" into this system like this not affect the way it works?

I agree with replacing this with an ESM.

 

I just saw this thread where an owner has this same early Comptech system:
https://www.s2ki.com/forums/index.ph...pic=287662&hl=
Might want to ask him how his set-up runs and if he also has the CEL bulb pulled. And does his car pass emissions?

 

The MAP sensor lines shouldn't be T-'d into the Air injection lines.

If it where my car, I'd yank all of them and start over. You could try calling Comptech for an old diagram from the MAP sensor check valve junk.