P1320 Infiniti Code - Ignition Signal
Quick Answer
The ignition signal from the Engine Control Module (ECM) is sent to and amplified by the power transistor. Common causes include Faulty power transistor unit built into ignition coil, Ignition primary circuit is open or shorted (circuit to ignition coils), Ignition primary circuit poor electrical connection (circuit to ignition coils). 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
- P1320 Infiniti indicates Ignition Signal.
- Common causes
- Common causes include Faulty power transistor unit built into ignition coil, Ignition primary circuit is open or shorted (circuit to ignition coils), Ignition primary circuit poor electrical connection (circuit to ignition coils).
- 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 P1320 Infiniti Description
What are the Possible Causes of the DTC P1320 Infiniti?
- Faulty power transistor unit built into ignition coil
- Ignition primary circuit is open or shorted (circuit to ignition coils)
- Ignition primary circuit poor electrical connection (circuit to ignition coils)
- Faulty ignition system condenser
- Crankshaft position sensor circuit
How to Fix the DTC P1320 Infiniti?
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.
Code Tech Notes
The P1320 code means that there is problem with the "Ignition Coil" or the wire to the ignition coil. For some models without individual ignition coils the Ignition Coil is inside the distributor and the distributor need to be replaced to fix the problem.
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What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1320 Infiniti 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 P1320 Infiniti code?
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Frequently Asked Questions about P1320 Infiniti Code
No Frequently Asked Questions about P1320 Infiniti Code found.
Discuss the causes and fixes for P1320 Infiniti OBDII Code
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P1320 code and P0301 for some time. Problem was intermittent at first and difficult to isolate. Sometimes trouble starting. Sometimes hard idle but RPMs don't vary. Sometimes feels like a lack of power with acceleration on interstate. Replaced coil #1 and all spark plugs. Fixed the starting issue but nothing else. Took it to dealership for diagnostics. They said coil #2 was bad. Now the miss seems almost constant, no power at interstate speeds. Replaced coil #2 and cleared codes. Still with miss and codes came right back. Disconnected each coil one at a time to see which one might be bad, but heard the engine slow with all six. Any other ideas or suggestions would be appreciated.
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What model and year is your Infiniti? When you replaced the coils, did you use factory inanition coils?
When The P1320 code is present, along with a P030X code, the solution to the problem is usually and ignition coil. -
I have a P1320 and a P0430 combined. I just replaced and all 4 o2 sensors and all 6 Coils with in the last 2 years. Any suggestions?
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What model an year is your Infiniti? did you use factory ignition coils? I have seen some aftermarket coils triggering the P1320 code, even if the coils are new. Also, the bad ignition coils could damage the catalytic converter. Fix the P1320 code and try to fix the P0430 code.
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2001 QX4. No I did not use dealer parts but they did say OEM. If I knew how to fix the P1320 1st I would. I'm stuck right now with this light on.
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Other than the ignition coils, I haven't seen any other component triggering the P1320 code. The only way to be sure is by connecting an oscilloscope to the coils and check the voltage.
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