I'll bet you won't be able to straighten out your back for a week.

 

I already hurt my back carrying your heavy CE28N's around!!! hahaha

 

Sorry for bringing this back up from the dead but I searched and found nothing. .....
So I have an early comptech SC kit with the "check valve" set up instead of the ESM. Seems like there is a spacer on the map sensor between the intake manifold and the sensor to sort out a nipple for the vaccum line leading to the check valve open to atmosphere. I want to install the ESM....so does this mean i would remove the sandwich spacer between map sensor and manifold and put the vaccum lines to stock locations? Or would i be able to just install the ESM and have no issues?
wouldnt leaving the Check valve setup and adding the comptech ESM somewhat offset the idea of the ESMs purpose?

 

The 'check valve' you have is meant to do the same thing mechanically what the ESM does electronically - they both try to hide boost from the map sensor. It would defeat the purpose of the ESM if you were to hook both up. Think about it this way - other comptech owners, myself included, used the ESM without the check valve with no problems.

 

I just bought an ap2 with a Comptech supercharger, it runs great, but I can't figure out if I have the ESM installed or not. Where do most people put it? I didn't see it by the ecu, although there is an alarm unit in there so it's a bit busy. If instead I have this check valve, where would it be located exactly?

Thanks guys.

 

If you can't find the check valve or ESM and you're using an aftermarket EMU (i.e. Greddy emanage) the installer might have clamped the voltage using the EMU. That's how I have mine setup.

 

So dumb question, where should I start looking for an emanage? lol I bought the car from a dealer and they knew very little about it. I know enough to tell it's running solid, it has good compression etc. but I want to know what I'm dealing with before it goes on a dyno to get the fuel tuning checked. The ecu appears stock, with no USB port on it so it's not a Kpro. I do have the comptech fuel pressure regulator. That's all I know right now.

Long term I'll go with AEM or KPro, but for now I just want to make sure it's safe.

 

If you’re still running the CT FPR then chances are you are not running E-manage or any other piggy back. I would expect to see factory injectors on your car as well, which is a sign that you have no piggy back management where you can adjust map signal. So you have a clamp somehwere.

The esm is spliced at the factory ecu harness so you should see a little black box tucked away there. I stuck mine right on the ecu with velcro. If no esm is present then the typical alternative is a map sensor spacer/riser. Regardless, if your car is running smooth like stock at partial throttle and boost, then you must have some form of map clamp. If you didn’t have one, then anything above 1/2psi and your car would surely run like ass.

 

Thank you!

It runs very well from idle all the way to redline so I have no doubt that I am running a clamp, I assume the ESM supplied by comptech, so I will look again tonight.

Next on my list is some proper engine management

 

^^^ Don't fix it if it isn't broken. Comptech is super reliable out of the box as long as your running the fpr with the right adjustment for a good afr. If you plan on upping the boost past 7psi then sure, another form of engine management is required. I recommend by passing E-manage unless you happen to have a local tuner that is super savvy using this device, otherwise save yourself the hassle and get a full stand alone.