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Old 02-10-2020, 10:05 AM   #21 (permalink)
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I don't know your engine management in particular but I'm about 75% sure it will not throw a code/CEL, ( ok probably 95% sure).
I've been driving turbo cars for 30 years, I've had many an IC hose pop off/ boost leaks and never a code. It's actually a bad thing since the power is greatly reduced and it's difficult to diagnose not knowing what the issue is.

BTW, the injector duty cycle skyrockets in boost, ( vs vacuum), it takes alot of fuel to keep an force induction engine happy.
Currently I drive a tuned twin turbo V6, I've been datalogging and watching all the parameters that pertain to the fueling and it's no secret to why the fuel economy is so bad in boost.

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Old 02-10-2020, 10:24 AM   #22 (permalink)
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Normally don't watch instant MPG much, but I'm single digit with the Cobalt in the first 3 gears with my normal acceleration, shifting close to 3,000. I've decided I'd rather get to speed fairly quickly so not getting single digit or low teen mpg a longer amount of time. The coast on the other end makes a bigger difference I think.
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Old 02-10-2020, 02:08 PM   #23 (permalink)
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Quote:
Originally Posted by roosterk0031 View Post
Normally don't watch instant MPG much, but I'm single digit with the Cobalt in the first 3 gears with my normal acceleration, shifting close to 3,000. I've decided I'd rather get to speed fairly quickly so not getting single digit or low teen mpg a longer amount of time. The coast on the other end makes a bigger difference I think.
See if you can use a camera to record load, rpm, and gpm. If you have a scanguage like most of it (I thought it was a membership requirement here :P).
That would get you a feel for it. Start off idle at 75% load, 90% load, etc.. and go up to 2700 rpm.

Well I assume a lot of the diy tuner guys probably have a laptop for datalogging and can read the tables. I haven't really gone that far.
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Old 02-10-2020, 02:49 PM   #24 (permalink)
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Sentra SE-R did some data logging years ago using a SG2, it's beyond my knowlege & interest level.

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