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11-03-2020, 12:01 PM
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#1 |
 Drives: Camaro ZL1 Join Date: May 2020
Location: Tampa
Posts: 166
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Code P012B just came up
P012B Turbo/Supercharger Inlet Pressure Sensor Range
Read more at: https://www.obd-codes.com/p012b Copyright OBD-Codes.com Looked it up. Other then the info the website above provides any one have the same issue or possible fixes? Car seems to be running fine. Code just appeared after normal driving. Car has been modded. Headers were done about 2 to 3 months ago. No issues until now. |
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11-03-2020, 12:19 PM
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#2 |
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Thank you Al Oppenheiser!
Drives: Red Hot A10 ZL1 Convertible Join Date: Jun 2017
Location: Sarasota, FL
Posts: 5,156
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Bad tune? (upper range limit not increased from pulley change?)
or Bypass valve stuck? "The code sets when the manifold absolute pressure sensor (MAP) detects pressure outside an acceptable value. The book shows that P012B can be caused by a slow MAP sensor or a damaged MAP sensor." |
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11-04-2020, 10:14 AM
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#3 | |
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Drives: Camaro ZL1 Join Date: May 2020
Location: Tampa
Posts: 166
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Quote:
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11-04-2020, 02:15 PM
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#4 | |
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Thank you Al Oppenheiser!
Drives: Red Hot A10 ZL1 Convertible Join Date: Jun 2017
Location: Sarasota, FL
Posts: 5,156
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Quote:
Could just be the MAP sensor going bad, loose connection, etc. |
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11-04-2020, 02:41 PM
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#5 | |
          
Drives: '20 ZLE Join Date: Jun 2020
Location: Mile High
Posts: 4,147
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You should log the data to see if it's lean or has any negative advance. Can't comment further w/o seeing all your mods
Quote:
__________________
2020 ZL1LE A10.
LME LT4 390 short block, CID Heads, Kong E2650, FBO. 15" conversion, Nitto 555Rii or MT ET Street R or Toyo Proxes RR. 100 octane: 1045hp/1055tq. 100 octane + Alky MAF Meth (1) 10+: |
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11-04-2020, 02:43 PM
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#6 | |
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Drives: '20 ZLE Join Date: Jun 2020
Location: Mile High
Posts: 4,147
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You should log the data at WOT in 3rd gear to see if it's lean or has any negative advance. Can't comment further w/o seeing all your mods and tune
Quote:
__________________
2020 ZL1LE A10.
LME LT4 390 short block, CID Heads, Kong E2650, FBO. 15" conversion, Nitto 555Rii or MT ET Street R or Toyo Proxes RR. 100 octane: 1045hp/1055tq. 100 octane + Alky MAF Meth (1) 10+: |
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11-05-2020, 01:15 PM
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#7 | |
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Drives: Camaro ZL1 Join Date: May 2020
Location: Tampa
Posts: 166
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Quote:
What should I look for logging. I have one of those bluedriver obd2 devices that provides data. |
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11-05-2020, 03:25 PM
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#8 | |
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Drives: '20 ZLE Join Date: Jun 2020
Location: Mile High
Posts: 4,147
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Quote:
I'm new to the LT4 supercharger but it must have some type of wastegate, so look for WG "%" column Also, pull and clean MAF sensor, then disconnect battery + lead to reset ECU.
__________________
2020 ZL1LE A10.
LME LT4 390 short block, CID Heads, Kong E2650, FBO. 15" conversion, Nitto 555Rii or MT ET Street R or Toyo Proxes RR. 100 octane: 1045hp/1055tq. 100 octane + Alky MAF Meth (1) 10+: |
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11-05-2020, 05:37 PM
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#9 |
 
Drives: 2017 A10 ZL1 Join Date: Jul 2011
Location: CO
Posts: 52
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I had the same code at one point and I forgot to tighten the bolt for the sensor when I did the upper pulley. Its behind the TB to the right, 10mm bolt.
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11-06-2020, 02:21 PM
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#10 |
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Drives: Camaro ZL1 Join Date: May 2020
Location: Tampa
Posts: 166
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I said **** with it and just took it to the mechanic/tuner. We replaced the sensor with new one from dealer, bout $50.00. Code did not go away. He plugged in his laptop and was able to clear it.
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