P1159 KIA Code - Variable Intake Motor Malfunction
Quick Answer
Variable Intake System (VIS) is used to increase torque at lower rpm and increase horsepower at higher rpm. Common causes include Faulty Variable Intake Motor, Variable Intake Motor harness is open or shorted, Variable Intake Motor circuit poor electrical connection. 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
- P1159 KIA indicates Variable Intake Motor Malfunction.
- Common causes
- Common causes include Faulty Variable Intake Motor, Variable Intake Motor harness is open or shorted, Variable Intake Motor circuit poor electrical connection.
- 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 P1159 KIA Description
What are the Possible Causes of the DTC P1159 KIA?
- Faulty Variable Intake Motor
- Variable Intake Motor harness is open or shorted
- Variable Intake Motor circuit poor electrical connection
How to Fix the DTC P1159 KIA?
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 P1159 KIA 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.
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Frequently Asked Questions about P1159 KIA Code
1. What does the OBDII code P1159 mean for a Kia vehicle?
P1159 indicates a Variable Intake Motor Malfunction, meaning the intake manifold runner control system is not operating as expected.
2. What are the common symptoms of a P1159 code in a Kia?
Symptoms may include reduced engine performance, poor fuel economy, rough idling, and the check engine light being illuminated.
3. What causes a P1159 code in a Kia?
Common causes include a faulty variable intake motor, damaged wiring or connectors, carbon buildup in the intake system, or a malfunctioning intake manifold runner control valve.
4. Can I drive my Kia with a P1159 code?
Driving with a P1159 code is not recommended as it can lead to poor engine performance and potentially cause further damage to the intake system.
5. How do I diagnose a P1159 code in my Kia?
Diagnosis typically involves checking for damaged wiring, testing the variable intake motor, inspecting the intake manifold for obstructions, and using a scan tool to monitor the intake system's operation.
6. How do I fix a P1159 code on a Kia?
Repairs may include replacing a faulty variable intake motor, cleaning carbon buildup in the intake manifold, repairing damaged wiring, or replacing the intake manifold runner control valve.
7. How much does it cost to repair a P1159 code on a Kia?
Repair costs can vary but typically range from $150 to $500, depending on whether parts like the variable intake motor need replacement.
8. What tools are needed to repair a P1159 code in a Kia?
Basic tools include a scan tool or OBDII reader, multimeter for electrical testing, and possibly cleaning tools for removing carbon deposits.
9. Can a dirty air filter cause a P1159 code in a Kia?
While a dirty air filter can contribute to performance issues, it is not a direct cause of the P1159 code, which is related to the intake manifold runner control system.
10. Will clearing the code with a scan tool fix the P1159 issue?
Clearing the code will turn off the check engine light temporarily, but the issue will likely return unless the underlying problem is resolved.
Discuss the causes and fixes for P1159 KIA OBDII Code
-
The Check Engine Light (Code reading was P1159) came on my 2002 Kia Sedona. I basically don't like any kind of lights showing up stating this. So I basically did some basic research and found that if its not the Faulty Intake Motor there is a way to terminate this problem.
The way I did it was I disconnected the negative post hook on my battery and set it aside for one minute. Making sure it did not touch anything. Then I compressed the horn for about 30 seconds releasing any and all emissions out of the system. The I waited another minute and hook it back up to the battery again. Then I restarted the Van and the Check Engine was gone. I drove it some afterwards making sure the problem was taken care of. It was! Then the next morning I went to work in it. The light never appeared again. Thus far, all is well.
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