11-20-2020, 11:43 AM | #99 | |
Drives: 2017 2SS, 50th pkg, M6, MRC, NPP Join Date: Jan 2016
Location: Ocean City, NJ
Posts: 3,298
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Once the car is warmed up and you are cruising, the car is running in closed loop. That means the air/fuel mixture is completely dictated by feedback from the oxygen sensor. There is no learning time for this. The MPG reported by the trip computer is entirely based on injector timing data. It looks at how far you have driven and how long the injectors were open over that time. Assuming constant fuel rail pressure, it knows how much fuel you consumed over a given distance. If you are getting 10 mpg at highway cruise, I would probably start by looking at fuel trims. If a scanner confirms it is running everything rich, I would think about a faulty oxygen sensor. Well, at least the battery is holding charge! |
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11-21-2020, 09:41 PM | #100 | |
Drives: 2016 Chevy Camaro 2SS Join Date: Aug 2019
Location: NY
Posts: 56
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11-21-2020, 09:44 PM | #101 | |
Drives: 2016 Chevy Camaro 2SS Join Date: Aug 2019
Location: NY
Posts: 56
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Quote:
Weirdly enough i had to put my tune back on the car when i received it because I was getting both CELs again for the right and left O2s but they instantly went away with the tune reapplied. |
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11-21-2020, 09:47 PM | #102 | |
Drives: 2016 Chevy Camaro 2SS Join Date: Aug 2019
Location: NY
Posts: 56
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11-22-2020, 12:15 AM | #103 |
Banned
Drives: 6 on the Flo' Super Sport Join Date: Jan 2011
Location: md
Posts: 1,925
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Well maybe the ECU is still learning and at least its holding a charge. The Lord works in mysterious ways.
Good night. |
11-22-2020, 08:38 AM | #104 |
Hot Camaro
Drives: '20 2SS Convertible 6MT Join Date: May 2020
Location: CT
Posts: 3,541
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The fact that you had to re-apply the tune almost certainly tells you that the ECU lost all previous settings. That means it reverted back to complete stock settings for everything including all little tweaks for trim levels and such for fuel/air. I would continue to drive and see what happens, but I honestly wouldn't get wrapped up in the in-car computer for mileage info - ever. Track it using a calculator between fill-up's otherwise the numbers are genuinely meaningless.
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11-23-2020, 12:25 AM | #105 |
Drives: Camaro 1SS A8 Vert Join Date: Sep 2018
Location: Tx
Posts: 303
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Do you have any after market LED or tail lights ?????
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11-24-2020, 06:54 PM | #106 |
Drives: 2016 Chevy Camaro 2SS Join Date: Aug 2019
Location: NY
Posts: 56
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I had oracle headlights and underflows but those were all disconnected once the issues started to issolate the problem and the issue happened for a couple months after them being disconnected so it's definitely not them.
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11-24-2020, 06:56 PM | #107 |
Drives: 2016 Chevy Camaro 2SS Join Date: Aug 2019
Location: NY
Posts: 56
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So I have a SCT BDX and I've been using the gauge on it to monitor the fuel pressure and at idle and low acceleration (under 2k rpm) the pressure has been around 46 psi ±2. The mpg has still been around 9 mpg according to the 25 miles economy range.
If I paddle shift the car and let rev out higher I can get the pressure to low 60s and have had the mpg shoot up to around 11 but I need to test this further. Idk how that would make sense. |
11-24-2020, 08:07 PM | #108 |
Drives: '20 ZLE Join Date: Jun 2020
Location: Mile High
Posts: 3,814
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I avg. approx. 11 mpg and I take it redline in 3rd, 4th and 5th at least once a day
__________________
'20 ZL1LE A10.
LME 390, E2650, FBO. 1116/967. 15" conversion/Weld/MT ET Street R 325/50R15. 100 octane: 1.35/9.25/151 at 3500 ft. (only one pass so far). 100% meth/100 octane: Alky Twin 10+10 MAF; No dyno or ET. |
11-25-2020, 11:03 AM | #109 | |
Hot Camaro
Drives: '20 2SS Convertible 6MT Join Date: May 2020
Location: CT
Posts: 3,541
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11-25-2020, 10:21 PM | #110 |
Drives: 2016 Chevy Camaro 2SS Join Date: Aug 2019
Location: NY
Posts: 56
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11-26-2020, 09:34 AM | #111 |
Hot Camaro
Drives: '20 2SS Convertible 6MT Join Date: May 2020
Location: CT
Posts: 3,541
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You're going off of what the car is telling you, though. And that calculator is never correct. The question is: Is that calculation much further off than normal, or is the MPG significantly down? The ONLY way to know what you're actually getting is hand calc.
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11-27-2020, 02:03 AM | #112 |
Drives: 2016 Chevy Camaro 2SS Join Date: Aug 2019
Location: NY
Posts: 56
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Just waiting for my tank to fully be empty to start fresh for hand calculations. Will update when I do.
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Tags |
electrical issues, fuel pump, not starting |
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