P0320
Ignition/Distributor Engine Speed Input Circuit Malfunction
Ignition and Knock Sensor DTC Codes
Ignition system, knock sensor, spark control OBD-II codes — and why these should never be suppressed.
About Ignition / Knock codes
Knock and ignition codes are engine-protective. If you're seeing knock DTCs after a tune, the tune is too aggressive — back off. Suppressing knock detection is a fast way to bend rods or melt pistons.
All 73 codes in Ignition / Knock
P0321
Ignition/Distributor Engine Speed Input Circuit Range/Performance
P0322
Ignition/Distributor Engine Speed Input Circuit No Signal
P0323
Ignition/Distributor Engine Speed Input Circuit Intermittent
P0324
Knock Control System Error
P0325
Knock Sensor 1 Circuit Malfunction (Bank I or Single Sensor)
P0326
Knock Sensor 1 Circuit Range/Performance (Bank 1 or Single Sensor)
P0327
Knock Sensor 1 Circuit Low Input (Bank I or Single Sensor)
P0328
Knock Sensor 1 Circuit High Input (Bank I or Single Sensor)
P0329
Knock Sensor 1 Circuit Intermittent (Bank 1 or Single Sensor)
P0330
Knock Sensor 2 Circuit Malfunction (Bank 2)
P0331
Knock Sensor 2 Circuit Range/Performance (Bank 2)
P0332
Knock Sensor 2 Circuit Low Input (Bank 2)
P0333
Knock Sensor 2 Circuit High Input (Bank 2)
P0334
Knock Sensor 2 Circuit Intermittent (Bank 2)
P0350
Ignition Coil Primary/Secondary Circuit Malfunction
P2300
Ignition Coil A Pri Ctrl Circ Low
P2301
Ignition Coil A Pri Ctrl Circ High
P2302
Ignition Coil A Sec Circ
P2303
Ignition Coil B Pri Ctrl Circ Low
P2304
Ignition Coil B Pri Ctrl Circ High
P2305
Ignition Coil B Sec Circ
P2306
Ignition Coil C Pri Ctrl Circ Low
P2307
Ignition Coil C Pri Ctrl Circ High
P2308
Ignition Coil C Sec Circ
P2309
Ignition Coil D Pri Ctrl Circ Low
P2310
Ignition Coil D Pri Ctrl Circ High
P2311
Ignition Coil D Sec Circ
P2312
Ignition Coil E Pri Ctrl Circ Low
P2313
Ignition Coil E Pri Ctrl Circ High
P2314
Ignition Coil E Sec Circ
P2315
Ignition Coil F Pri Ctrl Circ Low
P2316
Ignition Coil F Pri Ctrl Circ High
P2317
Ignition Coil F Sec Circ
P2318
Ignition Coil G Pri Ctrl Circ Low
P2319
Ignition Coil G Pri Ctrl Circ High
P2320
Ignition Coil G Sec Circ
P2321
Ignition Coil H Pri Ctrl Circ Low
P2322
Ignition Coil H Pri Ctrl Circ High
P2323
Ignition Coil H Sec Circ
P2324
Ignition Coil I Pri Ctrl Circ Low
P2325
Ignition Coil I Pri Ctrl Circ High
P2326
Ignition Coil I Sec Circ
P2327
Ignition Coil J Pri Ctrl Circ Low
P2328
Ignition Coil J Pri Ctrl Circ High
P2329
Ignition Coil J Sec Circ
P2330
Ignition Coil K Pri Ctrl Circ Low
P2331
Ignition Coil K Pri Ctrl Circ High
P2332
Ignition Coil K Sec Circ
P2333
Ignition Coil L Pri Ctrl Circ Low
P2334
Ignition Coil L Pri Ctrl Circ High
P2335
Ignition Coil L Sec Circ
P2336
Cylinder #1 Above Knock Threshold
P2337
Cylinder #2 Above Knock Threshold
P2338
Cylinder #3 Above Knock Threshold
P2339
Cylinder #4 Above Knock Threshold
P2340
Cylinder #5 Above Knock Threshold
P2341
Cylinder #6 Above Knock Threshold
P2342
Cylinder #7 Above Knock Threshold
P2343
Cylinder #8 Above Knock Threshold
P2344
Cylinder #9 Above Knock Threshold
P2345
Cylinder #10 Above Knock Threshold
P2346
Cylinder #11 Above Knock Threshold
P2347
Cylinder #12 Above Knock Threshold
P2530
Ignition Switch Run Pos Circ
P2531
Ignition Switch Run Pos Circ Low
P2532
Ignition Switch Run Pos Circ High
P2533
Ignition Switch Run/Start Pos Circ
P2534
Ignition Switch Run/Start Pos Circ Low
P2535
Ignition Switch Run/Start Pos Circ High
P2536
Ignition Switch Accessory Pos Circ
P2537
Ignition Switch Accessory Pos Circ Low
P2538
Ignition Switch Accessory Pos Circ High