Fast 102
Melting Slicks
Joined: Jun 2005
Posts: 2,396
Likes: 52
From: Sicamous BC
Sounds like you have a air leak such as a vacuum line disconnected. The line for the brake booster is big & would be a massive air leak. The manifold needs to sit down correctly on the cylinder heads, the reason for valley bolt change.
The ECU controls the idle speed & has a range to work in. If the leak is big it maybe out of range for the ECU.
As well the STFT & LTFT will add extra fuel if needed while you drive it. I'm sure the stock tune will be plenty safe even WOT, a good tune will have it running better everywhere & additional power.
I missed your thread as it is in the wrong section & I rarely visit this one.
The ECU controls the idle speed & has a range to work in. If the leak is big it maybe out of range for the ECU.
As well the STFT & LTFT will add extra fuel if needed while you drive it. I'm sure the stock tune will be plenty safe even WOT, a good tune will have it running better everywhere & additional power.
I missed your thread as it is in the wrong section & I rarely visit this one.
Burning Brakes
Joined: Oct 2015
Posts: 820
Likes: 332
From: Orlando Florida
And DTC codes? They may not have turned on the CEL.
Did you use the button head bolts in the valley? If not, the intake will not seat/seal.
Is the coolant crossover tube creating interference? It's the small tube near front of engine, bottom of valley and easily pushed out of the way. It's possible it is underneath the intake, preventing it from seating/sealing.
Did you drill out the MAP sensor hole?
Thread Starter
Burning Brakes
Joined: Aug 2018
Posts: 1,099
Likes: 399
From: ARKANSAS
I had no issues with my installation, you may have a leak. A couple things come to mind:
And DTC codes? They may not have turned on the CEL.
Did you use the button head bolts in the valley? If not, the intake will not seat/seal.
Is the coolant crossover tube creating interference? It's the small tube near front of engine, bottom of valley and easily pushed out of the way. It's possible it is underneath the intake, preventing it from seating/sealing.
Did you drill out the MAP sensor hole?
And DTC codes? They may not have turned on the CEL.
Did you use the button head bolts in the valley? If not, the intake will not seat/seal.
Is the coolant crossover tube creating interference? It's the small tube near front of engine, bottom of valley and easily pushed out of the way. It's possible it is underneath the intake, preventing it from seating/sealing.
Did you drill out the MAP sensor hole?
Thread Starter
Burning Brakes
Joined: Aug 2018
Posts: 1,099
Likes: 399
From: ARKANSAS
Tuner found no vacuum leaks, but did find an exhaust leak. He performed a street tune because the dyno was in use and I needed my car. It feels faster, but who knows. I'll be taking it back for the dyno next week. My next question is how to dress up the engine bay since the covers no longer fit very well.
Thread Starter
Burning Brakes
Joined: Aug 2018
Posts: 1,099
Likes: 399
From: ARKANSAS
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Burning Brakes
Joined: Oct 2015
Posts: 820
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From: Orlando Florida
Race Director
Joined: Dec 2013
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Burning Brakes
Joined: Oct 2015
Posts: 820
Likes: 332
From: Orlando Florida