Volvo’s ECM-P017400 code, also known as “System Too Lean (Bank 2)”, is a diagnostic trouble code that is triggered when the Engine Control Module (ECM) receives information from the heated oxygen sensor about the fuel/air mixture in different load areas. If the ECM detects that the fuel/air mixture deviates too much from the target lambda, the ECM will set off this code. Volvo Code ECM-P017400 can be caused by a variety of things, including too high of ethanol content in fuel, an incorrectly installed or damaged oil dipstick, air leakage in the intake manifold, air leakage in the exhaust pipe, low fuel pressure, and a damaged mass air flow sensor. Let’s investigate the causes and solutions to this problem.
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Causes and Solutions of Volvo Code ECM-P017400
| Cause | Solution |
|---|---|
| The too-high ethanol content in fuel | Replace fuel with a lower ethanol content |
| Incorrectly installed/damaged oil dipstick | Replace or repair the oil dipstick |
| Air leakage in the intake manifold | Check for any air leaks and fix them |
| Air leakage in the exhaust pipe | Check for any air leaks and fix them |
| Low fuel pressure | Replace the fuel pressure regulator |
| Damaged mass air flow sensor | Replace the mass air flow sensor |
Too High Ethanol Content in Fuel
A high ethanol content in fuel can cause the Volvo Code ECM-P017400. Ethanol is an alcohol-based fuel additive that helps to reduce vehicle emissions and increase fuel efficiency, but if the ethanol content is too high, it can cause the ECM to set off this code. To fix this problem, the fuel should be replaced with a lower ethanol content.
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Incorrectly Installed/Damaged Oil Dipstick
If the oil dipstick is incorrectly installed or damaged, it can cause the Volvo Code ECM-P017400 to be triggered. To fix this issue, the oil dipstick should be replaced or repaired.
Air Leakage in the Intake Manifold and Exhaust Pipe
Air leakage in the intake manifold or exhaust pipe can also trigger the Volvo Code ECM-P017400. It is important to check for any air leaks and repair them to fix this issue.
Low Fuel Pressure
Low fuel pressure can also trigger the Volvo Code ECM-P017400. To fix this problem, the fuel pressure regulator should be replaced.
Damaged Mass Air Flow Sensor
The last possible cause of the Volvo Code ECM-P017400 is a damaged mass air flow sensor. To fix this issue, the mass air flow sensor should be replaced.
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Conclusion
Volvo Code ECM-P017400 can be caused by a variety of issues, including too high of ethanol content in fuel, an incorrectly installed or damaged oil dipstick, air leakage in the intake manifold, air leakage in the exhaust pipe, low fuel pressure, and a damaged mass air flow sensor. Understanding the causes and solutions to this problem can help identify and resolve the issue quickly so that Volvo Code ECM-P017400 can be fixed and your vehicle can return to the road.