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Tuning / Diagnostics -- engine and transmission Tune and diagnostics for engines and auto transmission.

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Old 10-17-2012, 06:04 PM   #1
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rookie question about tune

will driving the car with long tubes installed, without a tune hurt the car?
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Old 10-17-2012, 06:14 PM   #2
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you'll be running rich, but I wouldn't say it'll "hurt" the car
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Old 10-19-2012, 01:43 AM   #3
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I have longtubes and an intake and I have a code for running too lean. Is that abnormal then?
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Old 10-19-2012, 07:04 AM   #4
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Quote:
Originally Posted by eglincamaro View Post
will driving the car with long tubes installed, without a tune hurt the car?
It wont per say hurt the car. They are very rich with the factory calibration. You're the rear O2 will throw codes, but it wont kill the car. You just are missing out on additional HP performance because how rich the vehicle is and from the factory the KR is about 5 degrees at 4500 RPMs

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you'll be running rich, but I wouldn't say it'll "hurt" the car
Correct

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Originally Posted by Biscuitpie View Post
I have longtubes and an intake and I have a code for running too lean. Is that abnormal then?
You may have a leak around your MAF area, and your PCM is taking its reading from unmeasured air, Or some intakes say they have to be tuned but in most cases its a small air leak.

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Old 10-20-2012, 12:52 AM   #5
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Originally Posted by Tampa Tuning View Post
It wont per say hurt the car. They are very rich with the factory calibration. You're the rear O2 will throw codes, but it wont kill the car. You just are missing out on additional HP performance because how rich the vehicle is and from the factory the KR is about 5 degrees at 4500 RPMs


Correct



You may have a leak around your MAF area, and your PCM is taking its reading from unmeasured air, Or some intakes say they have to be tuned but in most cases its a small air leak.

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Phil
Hmm thanks for the insight. I have an aftermarket intake (injen longtube) but I think it says it doesn't need a tune, do you think the MAF just isn't tightened down enough? If I can't tighten more should I put silicone sealant around the outside?
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Old 10-22-2012, 12:47 PM   #6
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Ive seen guys use silicone around the MAF, but I dont recommend it. Having the screws only in the corners can be a problem, and sometimes a better gasket is needed.
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