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post #1 of 18 (permalink) Old 01-21-2009, 09:48 AM Thread Starter
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Ecu mpg

What Can I do as far as updating the computer to give better gas mileage?

06 LS - Weapon R intake, Bucket seats, 4 point harness, 17" rims with Hankook racing tires, Blacked out headlights, Blacked out sparkplug harness, soul power decal.

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post #2 of 18 (permalink) Old 01-21-2009, 10:10 AM
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Get a tune from HP tuners. Or if you don't want to spend a lot of money, and don't wanna void warranty, get the JET chip. JET Performance Products, Import & Domestic Performance, Performance Kits, Fuel Systems, Transmissions Weight reduction and spirited driving, and having properly inflated tires helps MPG too.
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post #3 of 18 (permalink) Old 01-21-2009, 03:50 PM
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Quote:
Originally Posted by Chevy Cobalt 08 View Post
Get a tune from HP tuners. Or if you don't want to spend a lot of money, and don't wanna void warranty, get the JET chip. JET Performance Products, Import & Domestic Performance, Performance Kits, Fuel Systems, Transmissions Weight reduction and spirited driving, and having properly inflated tires helps MPG too.
HPTuners wont void the warranty cause i dooubt they will look

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post #4 of 18 (permalink) Old 01-21-2009, 05:14 PM
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They won't bother to check the ECM/PCM if you come in with a bad taillight, but, I can assure you if you go to a dealer with a blown engine they can verify whether or not the ECM/PCM was tampered with.

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post #5 of 18 (permalink) Old 01-21-2009, 05:18 PM
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They won't bother to check the ECM/PCM if you come in with a bad taillight, but, I can assure you if you go to a dealer with a blown engine they can verify whether or not the ECM/PCM was tampered with.
lol...VERY TRUE !

BUT ABOUT MPG.....
I have been mildly tuned and in the cruise mode
at 55 mph I get around 45.2 mpg almost always.
( 2.4l auto )

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post #6 of 18 (permalink) Old 01-21-2009, 08:19 PM
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How much do HP tuners usually charge? What others are there?
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post #7 of 18 (permalink) Old 01-21-2009, 09:47 PM
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Originally Posted by Red07SSNA View Post
They won't bother to check the ECM/PCM if you come in with a bad taillight, but, I can assure you if you go to a dealer with a blown engine they can verify whether or not the ECM/PCM was tampered with.
What if you have a CEL for whatever reason?
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post #8 of 18 (permalink) Old 01-21-2009, 10:00 PM
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then they will scan it with a scan tool and find whatever code its throwing

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post #9 of 18 (permalink) Old 01-21-2009, 10:17 PM
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Yeah but can they tell you tuned it?
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post #10 of 18 (permalink) Old 01-22-2009, 03:24 AM
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Yes they can.....
If they look !

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