[?] '18 Intake Manifold on '15-'17

16s550 · Mar 6, 2018

So what’s the cons of running the mmr lockout?

sstone · Mar 6, 2018

16s550 said:
So what’s the cons of running the mmr lockout?

Supposedly a loss of torque at the bottom end (like, less than 2100 rpm) and worse fuel economy. I can't say I've lost any noticeable torque per the butt-dyno so far.

VTR16 · Mar 6, 2018

Mine just arrived from Koon’s with no damage. Made the UPS guy watch me open and inspect it. They had paper, a little bit of small bubble wrap and a big foam piece on top. One side of the box is actually torn open from top to bottom. Another foam piece on the bottom would have been nice. Honestly don’t know how it arrived damage free.

16s550 · Mar 6, 2018

sstone said:
Supposedly a loss of torque at the bottom end (like, less than 2100 rpm) and worse fuel economy. I can't say I've lost any noticeable torque per the butt-dyno so far.

Where did you get your lockout kit? I have pp car so low end dosnt seem to be a problem.

kwikS550 · Mar 6, 2018

Kahboom said:
If it is the wiring let us know if it's a different way that was specified so others don't have the same issue best of luck.

Will do. I'm working through it and will report back with findings.

sstone said:
Really appreciating your info on the imrc and plumbing/wiring. It’s what I ultimately want to run, but got impatient.

I hear ya.

S550MG said:
Thanks for pioneering this install for everyone. Your info is helpful and confusing at the same time. Can you give me some clarity on your issues?

So you wired in the factory 15-17 pigtails to IMRC actuators, correct?
This is where I’m confused, I guess there are IMRC sensors as well? These sensors are giving you trouble? Is this the issue where people are saying that there are two plugs on the harness but only one sensor on the 18’ manifold? Shouldn’t your tuner be able to work around the cel issue? Who’s your tuner? So if you have answerd some of these questions already. Thanks for the help

Yes, I wired in the 18 pigtails. I believe that they're wired in correctly and not the problem.

The other 2 plugs are for the 2 solenoids on the 15-17 manifold that control the vacuum to the actuators. The 18 manifold only has 1 of these (that looks the same as one of the solenoids off the 15-17) but the vacuum lines that run off it run to both actuators.

The whole point of what I'm doing is to keep the IMRCs functional and not throw CELs with a stock, or FRPP tune. Tuning out the IMRCs and locking them out is certainly an option, just not for what I'm doing.

All that being said here's where I'm currently at:

My latest setup is still throwing codes (forget which ones this time, but I'm generally been dealing with P2005/P2006/P2008/P2012 codes related to the IMRCs, but I'm not sure why. The vaccum lines are routed the same way as a stock with 2 solenoids plugged in.

I pulled the manifold off last night before I went to bed. My plan is to bust out my multimeter tonight for some testing on the solenoids to make sure the 18 & 15-17 units are the same/doing the same things.

If I can't figure out how to get the current setup to work I have another idea that I want to try too.

There is a way to make it work! :headbang:

SoFloEco · Mar 6, 2018

kwikS550 said:
Will do. I'm working through it and will report back with findings.

I hear ya.

Yes, I wired in the 18 pigtails. I believe that they're wired in correctly and not the problem.

Thanks for being one of the pioneers on this install. The wiring is the issue I'm concerned about. What diagram or video did you use to do the wiring. Any help you can provide will help the rest of us greatly. Thanks in advance.

The other 2 plugs are for the 2 solenoids on the 15-17 manifold that control the vacuum to the actuators. The 18 manifold only has 1 of these (that looks the same as one of the solenoids off the 15-17) but the vacuum lines that run off it run to both actuators.

The whole point of what I'm doing is to keep the IMRCs functional and not throw CELs with a stock, or FRPP tune. Tuning out the IMRCs and locking them out is certainly an option, just not for what I'm doing.

All that being said here's where I'm currently at:

My latest setup is still throwing codes (forget which ones this time, but I'm generally been dealing with P2005/P2006/P2008/P2012 codes related to the IMRCs, but I'm not sure why. The vaccum lines are routed the same way as a stock with 2 solenoids plugged in.

I pulled the manifold off last night before I went to bed. My plan is to bust out my multimeter tonight for some testing on the solenoids to make sure the 18 & 15-17 units are the same/doing the same things.

If I can't figure out how to get the current setup to work I have another idea that I want to try too.

There is a way to make it work!

kwikS550 · Mar 6, 2018

SoFloEco said:
Thanks for being one of the pioneers on this install. The wiring is the issue I'm concerned about. What diagram or video did you use to do the wiring. Any help you can provide will help the rest of us greatly. Thanks in advance.

Sure thing.

So far it seems that the previous wiring diagram for the pigtails in this thread seems to work.

What needs to be done with the IMRC solenoids is still up on the air.

re-rx7 · Mar 6, 2018

kwikS550 said:
Will do. I'm working through it and will report back with findings.

I hear ya.

Yes, I wired in the 18 pigtails. I believe that they're wired in correctly and not the problem.

The other 2 plugs are for the 2 solenoids on the 15-17 manifold that control the vacuum to the actuators. The 18 manifold only has 1 of these (that looks the same as one of the solenoids off the 15-17) but the vacuum lines that run off it run to both actuators.

The whole point of what I'm doing is to keep the IMRCs functional and not throw CELs with a stock, or FRPP tune. Tuning out the IMRCs and locking them out is certainly an option, just not for what I'm doing.

All that being said here's where I'm currently at:

My latest setup is still throwing codes (forget which ones this time, but I'm generally been dealing with P2005/P2006/P2008/P2012 codes related to the IMRCs, but I'm not sure why. The vaccum lines are routed the same way as a stock with 2 solenoids plugged in.

I pulled the manifold off last night before I went to bed. My plan is to bust out my multimeter tonight for some testing on the solenoids to make sure the 18 & 15-17 units are the same/doing the same things.

If I can't figure out how to get the current setup to work I have another idea that I want to try too.

There is a way to make it work!

With the imr in the open position did it affect the cars drivability any?

kwikS550 · Mar 6, 2018

re-rx7 said:
With the imr in the open position did it affect the cars drivability any?

Tough to say since I'm not 100% sure both my IMRCs have been inoperable/stuck open at the same time lol.

I can tell you that if 1 or both are open and you're not tuned for it you'll have part throttle hesitation around 2000rpms.

The IMRCs are there to keep air velocity up for efficiency at idle/low rpms. If you lock them out you'll lose that.

16s550 · Mar 6, 2018

Can someone please help me find the mmr plates please.

Kahboom · Mar 6, 2018

http://www.modularmotorsportsracing...n_page=product_info&cPath=84&products_id=1042

16s550 · Mar 6, 2018

Thanks buddy!

magneticgrey_manstick · Mar 6, 2018

my second manifold is scheduled to ship tomorrow, they sent it next day air. My tuner said that they were seeing data logs with the pigtail solution, but it's not connected correctly. I'm going to email them again and see if they have any updates on what's actually needed for it all to work. Those of you who have the imrc's locked out are not having any issues correct? This is my dd, hate the idea of lockouts but it is what it is as of now

DevilDocAZ · Mar 6, 2018

Got a tracker that my replacement manifold will be here Friday. Curious to see what happens.

SoFloEco · Mar 6, 2018

raptorgabe said:
you guys need to quit being pussies and wire the damn thing its 3 wires.. most people dont even know how to wire it let alone make a plug and play harness. where do all you girls live at so i can buy you all one and come install it for you since your so scared to pop your hood. there is so much info on these in this thread and on facebook groups everyone should know to to install one by now .

Sorry, but I've searched for weeks and only found a blurry pic labeling the three wires in a connector - HARDLY 'so much info'. There are ZERO usable wiring diagrams. Still waiting.

[?] '18 Intake Manifold on '15-'17

16s550

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sstone

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VTR16

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16s550

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kwikS550

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SoFloEco

5 Liters of Love!

kwikS550

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re-rx7

Ruck the night away

kwikS550

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16s550

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Kahboom

Kahboom

16s550

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magneticgrey_manstick

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DevilDocAZ

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SoFloEco

5 Liters of Love!