cold start high revving after installing aftermarket parts

[Blake1111]

Hello there,

So, I installed a ZZP bigger intercooler (among many other parts) a couple of months ago. After installing the intercooler though, I started having my car rev up REALLY high, sometimes like 4 to 5k rpm, immediately after a cold start. It stops after the engine warms up. I noticed that if I put it in drive right after starting it up, I can avoid the problem, but I have GOT to figure out what's up with this, because it is going to ruin my engine quickly if I don't. I live in Lakewood Colorado and so it gets really cold. This problem is exaggerated when it's cold outside - the colder the worse it is. I also have been getting a P2261 code soon after driving immediately after a cold start; not sure if this is related to the issue though. I reset the code with my gauge and it doesn't come back until my next drive after the next cold start. I'm really hoping that I'm not the only one experiencing this! Please help, and thank you

 

[ginkins]

Im haveing the same issue but no code pressent mine started happening after installin ported intake manifold and zzp larger throttle body did you ever figure it out

 

[Cmaj44]

I've been having this same issue after installing ZZP cold air intake, intercooler, larger throttle body, and other parts back in 2023. The few times I've contacted ZZP they either told me they didn't offer that kind of assistance or to contact the tuner who doesn't offer much help.

Also, my cold charge pipe (driver's side) seems to get cover in a fluid. Don't know if it's oil or another fluid yet.

Anyone else find any answers yet?

 

[Blake1111]

I've been having this same issue after installing ZZP cold air intake, intercooler, larger throttle body, and other parts back in 2023. The few times I've contacted ZZP they either told me they didn't offer that kind of assistance or to contact the tuner who doesn't offer much help.

Also, my cold charge pipe (driver's side) seems to get cover in a fluid. Don't know if it's oil or another fluid yet.

Anyone else find any answers yet?

Man it’s been a while since I opened this lol. So, the cold start reving that stops after the car warms up a bit is just the bigger throttle body. It’s just something you have to deal with. Doing a throttle body relearn might help even it out a bit, but you can’t completely avoid it. I ended up installing the stock throttle body because it was annoying and there really aren’t any gains from a bigger throttle body.

 

[Cmaj44]

Well I have to thank you because I have been getting different answers from car enthusiasts. Now I have a clear answer and guess I will see if I get tired of it. Did you have to re-tune after putting on the factory throttle body?

 

[Blake1111]

Just tell whoever tuned your car that you threw back on the stock throttle body and they can send you an update. It should be drivable with the stock throttle body on regardless of the update not being on, but it will accelerate weird for the first couple hours after installing it. the computer adjusts to smooth it out but you still need the tune update or you will get a code probably.