P1519 on Mercury
Intake Camshaft Control / Adjustment Bank 1 Malfunction
P1519 on Mercury vehicles indicates intake camshaft control / adjustment bank 1 malfunction. Au7o has documented this code across 1 Mercury model — most commonly on Cougar. P1519 is a manufacturer-specific code most commonly found on VAG vehicles (Volkswagen/Audi), where it indicates a malfunction in the intake camshaft control (variable valve timing / camshaft adjustment) on Bank 1. The engine control module has detected that the intake camshaft cannot be adjusted to the commanded position, meaning the VVT system on that bank is not responding correctly. On some other makes the same code number is used differently (e.g., BMW: inlet camshaft end-position plausibility; Mercedes-Benz: camshaft position control mechanical fault; some others: intake manifold runner control stuck closed), so the exact meaning can vary by manufacturer. Typical repair costs on Mercury range from $120 to $600, depending on the specific model and root cause.
Common Causes of P1519
- •Faulty or clogged camshaft adjuster (VVT) solenoid on Bank 1 (resistance spec roughly 10-18 ohms)
- •Low or dirty oil / sludge restricting the camshaft adjuster oil flow
- •Wiring or connector fault to the camshaft adjustment valve (loose/corroded connector)
- •Failed or stretched timing chain, worn tensioner, or camshaft phaser/adjuster unit
- •Faulty camshaft or crankshaft position sensor causing timing correlation error
- •Engine control module fault or incorrect camshaft timing alignment
P1519 on Mercury by Model
Mercury Cougar(1 issue)
- Intake Manifold Runner Control (IMRC) Failure - 2.5L V61999-2002
The 2.5L Duratec V6's IMRC system uses an electric actuator with plastic gears and plastic linkage bushings to open the secondary intake runners at higher rpm. The plastic linkage bushings break and the actuator's gears jam or strip — a failure common to all Fords with this IMRC design — leaving the runners stuck closed (P1519) or stuck open (P1518). With the runners stuck closed the engine loses most of its power above roughly 3,000 rpm and the check engine light prevents passing emissions testing.
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View P1519 across all makes →Frequently Asked Questions
What does P1519 mean on Mercury?▼
P1519 stands for "Intake Camshaft Control / Adjustment Bank 1 Malfunction." P1519 is a manufacturer-specific code most commonly found on VAG vehicles (Volkswagen/Audi), where it indicates a malfunction in the intake camshaft control (variable valve timing / camshaft adjustment) on Bank 1. The engine control module has detected that the intake camshaft cannot be adjusted to the commanded position, meaning the VVT system on that bank is not responding correctly. On some other makes the same code number is used differently (e.g., BMW: inlet camshaft end-position plausibility; Mercedes-Benz: camshaft position control mechanical fault; some others: intake manifold runner control stuck closed), so the exact meaning can vary by manufacturer. On Mercury specifically, this code is documented across 1 model.
What causes P1519 on Mercury vehicles?▼
Common causes on Mercury: Faulty or clogged camshaft adjuster (VVT) solenoid on Bank 1 (resistance spec roughly 10-18 ohms), Low or dirty oil / sludge restricting the camshaft adjuster oil flow, Wiring or connector fault to the camshaft adjustment valve (loose/corroded connector), Failed or stretched timing chain, worn tensioner, or camshaft phaser/adjuster unit, Faulty camshaft or crankshaft position sensor causing timing correlation error. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix P1519 on a Mercury?▼
Repair costs on Mercury range from $120 to $600, depending on the specific model and root cause.
Which Mercury models have P1519 documented?▼
Au7o has documented P1519 on 1 Mercury model: Cougar.