Engine Malfunction Service Engine Soon light stays on.
Apr 10, 2019 at 9:42 AM
Fault code P0505
2002 INFINITI Q45
GNOFRSH
- MEMBER
- 1 POST
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SEVAG P
- ✓ASE Certified Mechanic
- 405 POSTS
hello thanks for using 2CarPros.
fault code p0505 is related idle speed control system,it seems you have air leak of the intake system.
Here is a guide to check for air leak:
https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge
Start the engine and let it idle,check for air intake leak after mass air flow,if leak found repair it,if leak not found then perform throttle valve closed position learning and idle air position learning.check fig 1 for the procedure.
let us know what happens with you.
thank you.
fault code p0505 is related idle speed control system,it seems you have air leak of the intake system.
Here is a guide to check for air leak:
https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge
Start the engine and let it idle,check for air intake leak after mass air flow,if leak found repair it,if leak not found then perform throttle valve closed position learning and idle air position learning.check fig 1 for the procedure.
let us know what happens with you.
thank you.
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Apr 10, 2019 at 11:17 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.