P1320 on Infiniti
Nissan and Infiniti: the engine computer is not seeing the expected ignition primary signal back from the ignition coils
Severity: Inspect soon
On Nissan and Infiniti, P1320 means the ignition primary signal is not coming back as expected, which Nissan ties to ignition coils. The engine may run fine, but a failing coil can cause misfire or detonation, so have it checked soon.
It gets more serious if:
- Stop: The check engine light starts flashing. That means misfire heavy enough to overheat and damage the catalytic converter; avoid further driving and get it checked.
- Stop: The engine stalls or will not restart. A crank sensor or primary circuit fault can cut ignition entirely; do not keep driving a car that stalls.
This page covers only what differs on Infiniti. For what P1320 means, the ranked causes and the test order, see the P1320 guide.
What's different on Infiniti
InfinitiYour car
1999–2001 · I30
Supported by vehicle dataInfiniti ties P1320 to ignition coils on the I30; wiring is worth checking if new coils do not clear it.
ITB01-052Status unverified
MIL with P1320 and/or spark knock due to ignition coil(s)
2000–2001i30 · NHTSA 623137
Same condition as the Maxima bulletin.
We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.
ITB01-053Status unverified
MIL with P1320 due to the ignition coil
1999i30 · NHTSA 623696
P1320 stored in the ECM due to the ignition coil.
We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.
Sources and review
- Infiniti ITB01-052: MIL with P1320 and/or spark knock due to ignition coil(s), 2000-2001 I30
- Infiniti ITB01-053: MIL with P1320 due to the ignition coil, 1999 I30
- 2000 Infiniti I30 3.0L: P1320 ignition primary
- Nissan NTB01-059: MIL with P1320 and/or spark knock (detonation) due to ignition coil(s), 2000-2001 Maxima
- 2000 Infiniti I30 code P1320
- Last reviewed
- Written by
- Saurabh K.
- Editorial review
- Pending
- Technician review
- Technician review pending
This page explains what a code usually means; it is not a substitute for a professional inspection. How we source and review · Report an error