Need help after RBC swap.

Phroze

Phroze

Well-Known Member
159
157
Oklahoma City, Ok
Vehicle Model
Civic Si
Body Style
Coupe
So i completed my RBC swap, fire it up and everything seemed fine.

The problem I'm having is whenever the car is moving, but the clutch is in (so pretty much idling) the RPMs jump up to 2k then fall back down and keep doing that as long as the car is moving. Once i completely stop at a light or end of my destination, etc... it will go back down to 1k and stay.

I refilled my coolant and 'bumped' it.
the swap consisted of RBC bored out to 3", 3" ZDX Throttle body, spacer, rbc adapter kit.
 
Phroze said:
So i completed my RBC swap, fire it up and everything seemed fine.

The problem I'm having is whenever the car is moving, but the clutch is in (so pretty much idling) the RPMs jump up to 2k then fall back down and keep doing that as long as the car is moving. Once i completely stop at a light or end of my destination, etc... it will go back down to 1k and stay.

I refilled my coolant and 'bumped' it.
the swap consisted of RBC bored out to 3", 3" ZDX Throttle body, spacer, rbc adapter kit.
Click to expand...

Can you get me a pic of your engine bay?
RBC and ZDX specifically.
 
It sounds like idle recovery. Are the Rpms dropping rather low before it's revs up. If so your idle is to low and the car is saving itself from stalling out
 
He may have plugged the MAP sensor into the ZDX and not the RBC.
 
ha! i did plug into the map sensor on the zdx... it sounds like it need to go into the rbc's? :)
 
yeah that discussion thread is BRILLIANT! I also had my coolant plug leaking but i RTV'd it right away, wish i would done that before i installed it. Woulda been much easier, thanks alot for that/this!

I'm gonna hook up the proper MAP sensor tomorrow morning and let ya know if it fixes it, I'm on my way to bed now
 
Flippercon said:
Wednesday or Thursday I am doing that install @squiggy. Tons of pics coming.
Click to expand...

Excellent. @323 will be installing his soon too. I may actually be able to piece together a good DIY if I get your pics before he does his install. This way, I can ask him for specifics (if needed) and add to yours and the few I have. Nothing like crowd sourcing a DIY. Hopefully all the different colored parts don't confuse people!
 
squiggy said:
Excellent. @323 will be installing his soon too. I may actually be able to piece together a good DIY if I get your pics before he does his install. This way, I can ask him for specifics (if needed) and add to yours and the few I have. Nothing like crowd sourcing a DIY. Hopefully all the different colored parts don't confuse people!
Click to expand...
All the parts I will be installing will be non painted. I also have my set up without paint but lacking zdx tb. We will get a good one together for sure.
 
squiggy said:
Excellent. @323 will be installing his soon too. I may actually be able to piece together a good DIY if I get your pics before he does his install. This way, I can ask him for specifics (if needed) and add to yours and the few I have. Nothing like crowd sourcing a DIY. Hopefully all the different colored parts don't confuse people!
Click to expand...
Yea whatever you need just let me know.
I hope it's not confusing to have 3 different colored manifolds in one diy lol
 
323 said:
Yea whatever you need just let me know.
I hope it's not confusing to have 3 different colored manifolds in one diy lol
Click to expand...

I will put a disclaimer in. It shouldn't be much of a big deal. When do you plan on doing yours?
 
squiggy said:
I will put a disclaimer in. It shouldn't be much of a big deal. When do you plan on doing yours?
Click to expand...
Possibly this weekend. But it depends on when the exhaust gets here because I'd rather do that first so the RBC would have to wait. But we'll see.
 
Ok so i hooked up to the RBCs MAP sensor instead of the ZDXs and I'm stilling getting the weird idle... I'm uploading a youtube video right now, which i'll post to show you what's going on once it gets done
 
yup, there was one vacuum line that had broken off when i closed my hood... i had the elbow facing straight up and the hood broke it, but i fixed and reconnected it. When that was off, the idle would sit at like 3k constant. The video should be done uploading here in a minute so you can see what i'm talking about. It also shows the engine bay so you can see if anything's fishy
 
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