Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Troubleshooting DTC P1456 And P1457 (99-040)
2004 Acura 3.5RLSECTION Troubleshooting DTC P1456 And P1457 (99-040)
Publication date: 2015-12-08
Reference number: 99-040
Supersedes refnos: 99-039
TROUBLESHOOTING DTC P1456 AND P1457
Reference number: 99-040
Supersedes refnos: 99-039
TROUBLESHOOTING DTC P1456 AND P1457
TECHNICAL SERVICE BULLETIN
Reference Number(s): 99-040, Date of Issue:
December 8, 2015
Superceded Bulletin(s): 99-040, Date of Issue:
August 9, 2013
| ACURA: | 1997-03 CL; 1996-01 Integra; 2001-04 MDX; 1997-05 NSX; 1996-04 RL; 1999-03 TL |
| CATEGORY: | Fuel and Emissions |
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.