*HELP* turbo? wastegate? injectors? datalog and videos included

[bluerazz]

Hey y'all. Things have been going swell with my Si so far. But I ran into an issues last night. No check engine light, but my car is only hitting about 10 lbs of boost at most. I am on the ktuner 21psi starter tune. Mods are my PRL Cobra and PRL Catted DP. I am getting a more raspy sound from up front of the car (almost sounds like an exhaust leak of some kind?) and a stronger smell of fuel when driving with windows down. I recorded a video with my phone which i will add below, of the car idling and tapping the throttle when idling to try and identify any strange sounds. Datalog begins on the freeway just cruising, includes a few pulls, and my entire ride home. Please help! And ask any and all clarifying questions and I will answer ASAP. Thanks!

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[gtman]

I won't be able to check the log until tonight. Start by checking your intercooler charge pipe connections.

 

[bluerazz]

I won't be able to check the log until tonight. Start by checking your intercooler charge pipe connections.

thanks

 

[gtman]

thanks

Sorry. You exported it as a speadsheet, not a normal datalog file. I only read .kdlg files.

 

[bluerazz]

Sorry. You exported it as a speadsheet, not a normal datalog file. I only read .kdlg files.

Let me fix that for you

 

[bluerazz]

@gtman

 

[gtman]

Obviously a pretty sizable boost leak/low boost issue. Check the charge pipe connections, other hoses. You may need to do a smoke test. Physically inspect the EWG / actuator. I'm not a pro. Just some ideas.

 

[bluerazz]

Obviously a pretty sizable boost leak/low boost issue. Check the charge pipe connections, other hoses. You may need to do a smoke test. Physically inspect the EWG / actuator. I'm not a pro. Just some ideas.

The more I drive I am inclined to think it’s a hose somewhere that might’ve split or popped off. MAP is reading 3 psi lower than what my dash guage. Exhaust is a lot quieter than normal, with the raspy/hissing noise coming from up front. Fingers crossed I can find the leak. Thanks @gtman

 

[gtman]

I can't fully speak to the accuracy of the Si's dash gauge. My Non-Si's boost gauge is a joke.

 

[Builtfc1]

The more I drive I am inclined to think it’s a hose somewhere that might’ve split or popped off. MAP is reading 3 psi lower than what my dash guage. Exhaust is a lot quieter than normal, with the raspy/hissing noise coming from up front. Fingers crossed I can find the leak. Thanks @gtman

Look on top of the intake manifold there is a vacuum line that often pops off.

 

[Zedaine]

If you want a second set of eyes or assistance in getting the front bumper off so you can check the intercooler piping I have a lot of tools and a set of ramps. I'm in the Bountiful/North Salt Lake area.

 

[bluerazz]

Look on top of the intake manifold there is a vacuum line that often pops off.

I looked at the hoses going into the intake manifold, they all looked okay. I recorded a short video, watch it and tell me what you think. I appreciate your quick response!

If you want a second set of eyes or assistance in getting the front bumper off so you can check the intercooler piping I have a lot of tools and a set of ramps. I'm in the Bountiful/North Salt Lake area.

Thanks for your response. I might have to take you up on that offer. I live in south valley area so not too far from you. Fortunately the car seems driveable, as long as I stay out of boost it seems to operate just fine. How can I get in contact with you?

let me know if you are able to view this video below https://share.icloud.com/photos/0a1PsMVi9tRdY934fhqR7iFng

 

[gtman]

Like I said a couple of times, charge pipes are always the first place to look.

 

[bluerazz]

Like I said a couple of times, charge pipes are always the first place to look.

Look on top of the intake manifold there is a vacuum line that often pops off.

Found some missing gaskets in the intercooler piping, and there is no support mounts for the radiator. Got parts from Honda that I hope will fix boost leak. Next step from there is to replace turbo inlet pipe, @Zedaine has been a major help in this process. How fortunate it is to have an enthusiast near by!

 

[Zedaine]

Happy to assist! Hopefully getting those intercooler gaskets replaced and intercooler brackets installed will resolve the issue. Sucks that the previous owner didn't put everything back correctly...

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