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Author
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Topic: Check Engine Light Code 12 and 26 Help
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FivePTSlow
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Member # 7682
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posted
 
 
So, today I replaced my Throttle Position Sensor. I made sure it was at a steady .98 volts. Then for some reason right after replacing the TPS I start getting CELs 12 and 26 any idea why that would happen? I didn't touch anything except the TPS.
Code 12 - RPM unable to reach upper test limit
Code 26 - VAF/MAF out of self-test range
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2011 GT/CS 5.0 + Boost(Procharger)
90 Bronco 5.8 Lifted
05 SRT-4 24PSI E-85 at least 50 million hp
07 Harley VROD NRS Stage 1
Posts: 1857 | From: Sacramento | Registered: May 2007
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Greasy
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Member # 5258
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posted
Did you check the 5V ref on the TPS?
[ November 02, 2011, 06:33 PM: Message edited by: Greasy ]
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'93 Cobra-Coyote Powered
'03 DSG Cobra
'13 Dodge Cummins
'14 Rubicon X
Posts: 3272 | From: North Dallas | Registered: Jan 2005
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FivePTSlow
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Member # 7682
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posted
quote:
Originally posted by Greasy:
Did you check the 5V ref on the TPS?
No I didnt I remember on my old tps it read 4.98
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2011 GT/CS 5.0 + Boost(Procharger)
90 Bronco 5.8 Lifted
05 SRT-4 24PSI E-85 at least 50 million hp
07 Harley VROD NRS Stage 1
Posts: 1857 | From: Sacramento | Registered: May 2007
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Greasy
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Member # 5258
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posted
I would just confirm that the wiring is good by checking the ref voltage. Also when you are back probing the wires to set your TPS bring the throttle wide open and it should be right around your ref voltage.
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'93 Cobra-Coyote Powered
'03 DSG Cobra
'13 Dodge Cummins
'14 Rubicon X
Posts: 3272 | From: North Dallas | Registered: Jan 2005
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FivePTSlow
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Member # 7682
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posted
Yup 5v
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2011 GT/CS 5.0 + Boost(Procharger)
90 Bronco 5.8 Lifted
05 SRT-4 24PSI E-85 at least 50 million hp
07 Harley VROD NRS Stage 1
Posts: 1857 | From: Sacramento | Registered: May 2007
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FivePTSlow
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Member # 7682
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posted
well I cleaned the MAF sensor and did the base idle reset procedure over and so far it seems to have cleared up the problems so far
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2011 GT/CS 5.0 + Boost(Procharger)
90 Bronco 5.8 Lifted
05 SRT-4 24PSI E-85 at least 50 million hp
07 Harley VROD NRS Stage 1
Posts: 1857 | From: Sacramento | Registered: May 2007
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