P1390 Saab Code - Misfire Detected Random Fuel Level Low
Quick Answer
P1390 Saab indicates Misfire Detected Random Fuel Level Low. Common causes include Low fuel level, Faulty fuel pump relay, Faulty fuel pump. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1390 Saab indicates Misfire Detected Random Fuel Level Low.
- Common causes
- Common causes include Low fuel level, Faulty fuel pump relay, Faulty fuel pump.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P1390 Saab Description
What are the Possible Causes of the DTC P1390 Saab?
- Low fuel level
- Faulty fuel pump relay
- Faulty fuel pump
- Faulty Mass Air Flow (MAF) sensor
- Intake leak
- Faulty fuel injector
How to Fix the DTC P1390 Saab?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1390 Saab code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
Need more information about the P1390 Saab code?
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Frequently Asked Questions about P1390 Saab Code
1. What are the common symptoms of OBDII code P1390 in a Saab?
- Common symptoms include engine misfires, rough idling, loss of power, and potentially decreased fuel efficiency.
2. What could cause the OBDII code P1390 "Misfire Detected Random Fuel Level Low" in a Saab?
- The code P1390 in a Saab is typically triggered by a combination of factors such as low fuel level, misfires, and potentially faulty fuel injectors or fuel pump.
3. How can I diagnose the OBDII code P1390 in my Saab?
- Diagnosing the code P1390 involves checking the fuel level, inspecting the fuel injectors, verifying spark plugs and ignition coils, and ensuring proper fuel pressure.
4. Can driving with the OBDII code P1390 in a Saab cause further damage?
- Driving with the code P1390 may lead to increased fuel consumption, potential damage to the catalytic converter, and worsened engine performance if left unresolved.
5. What are some repair tips for fixing the OBDII code P1390 in a Saab?
- Repair tips include refueling the tank, addressing any misfires by replacing faulty spark plugs or ignition coils, checking fuel injectors for clogs, and testing fuel pressure.
6. Should I reset the OBDII code P1390 in my Saab after making repairs?
- After making necessary repairs, it is advisable to reset the code P1390 using an OBDII scanner to clear the fault code and see if the issue reoccurs during driving.
7. Is it safe to continue driving my Saab with the OBDII code P1390 present?
- It is not recommended to ignore the code P1390 and continue driving, as unresolved misfires and low fuel level issues can potentially lead to more serious engine problems.
8. How can I prevent the OBDII code P1390 from appearing in my Saab in the future?
- Regular maintenance, such as keeping the fuel tank adequately filled, replacing spark plugs and ignition components as needed, and using quality fuel, can help prevent the code P1390 from reoccurring.
9. Can weather conditions affect the triggering of the OBDII code P1390 in a Saab?
- Extreme weather conditions, especially cold temperatures, can potentially exacerbate fuel level issues and misfires, leading to the triggering of the code P1390 in a Saab.
10. Is it necessary to consult a professional mechanic for the repair of the OBDII code P1390 in a Saab?
- While some DIY repairs are possible, consulting a professional mechanic is recommended for a thorough diagnosis and proper repair of the code P1390 in a Saab to ensure long-term reliability and performance.
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