Cause
Faulty ignition module or pickup
The ignition module and the pickup that tells it when to fire — a pairing that matters because the module is usually blamed and the pickup usually fails. The pickup is a magnetic or Hall sensor watching a toothed wheel; the module is the switching electronics acting on it. A module with a bad input behaves exactly like a module with a bad output.
Heat is the common thread in both failures. These parts sit on or near the engine, and a marginal semiconductor junction or a pickup coil whose insulation has degraded works cold and fails hot — which produces the characteristic complaint of an engine that runs perfectly until it is warmed through, then cuts out and restarts after twenty minutes standing. A fault that goes away while you fetch a meter is this pattern, not an intermittent connection.
Measure the pickup's output before replacing the module. Its resistance should be within the specified range and stable when warm, and its waveform should be clean at cranking speed — a signal that collapses in amplitude as the engine heats is the pickup, whatever the code names. Air gap matters too: a pickup that has shifted on its mounting or a reluctor wheel with a damaged tooth gives a signal the module cannot use, with both parts in perfect condition.
Typically a moderate job.
Some of these codes mean you should stop driving
4 of the 5 codes this can cause indicate a fault where continuing to drive risks damage or is unsafe. Which one you have matters more than the cause does — read the code's own page before deciding.
Codes this can cause (5)
Codes where this is a likely explanation first, rather than merely a possible one.
- P0320 Ignition/Distributor Engine Speed Input Circuit Likely for this code Stop driving High
- P0321 Ignition/Distributor Engine Speed Input Circuit Range/Performance Likely for this code Stop driving High
- P0322 Ignition/Distributor Engine Speed Input Circuit No Signal Likely for this code Stop driving High
- P0323 Ignition/Distributor Engine Speed Input Circuit Intermittent Likely for this code Stop driving High
- P2614 Camshaft A Position Signal Output Circuit/Open Bank 1 Moderate
Information, not instruction
CarGeek is a reference, not a service manual. Its pages are written from public sources and from what other people have found, never from a manufacturer's own service information, so they can be wrong or incomplete for your particular vehicle. Some of what they describe carries real risk: high voltage, fuel under pressure, stored energy, hot and moving parts.
Have anything you intend to act on checked by a trained person against the manufacturer's own procedure for your vehicle. Nothing here replaces that procedure.
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- The car — make, model, year and engine. The same fault behaves differently on each.
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