P1259moderate severityPowertrain

VTEC System Malfunction Bank 1

on 2002 Acura CL 3.2L V6 · FWD

What this code means

VTEC oil pressure switch did not indicate proper pressure when commanded.

Symptoms

  • CEL
  • Loss of power above 4000 RPM
  • Cannot rev past 4000
  • Rough idle
  • Decreased economy

Common causes

  • Low oil level
  • Dirty/degraded oil
  • Faulty VTEC solenoid
  • Clogged oil screens

Diagnostic steps

  1. Check oil level/condition
  2. Test VTEC solenoid
  3. Clean VTEC screen filter
  4. Monitor oil pressure

Repair notes

Change oil. Replace VTEC solenoid or clean screens.

Other Powertrain codes on this vehicle

⚠ STILL BEHIND THE PAYWALL
The 2002 Acura CL repair data is incomplete because no one has sponsored it yet. For $99, we generate the full step-by-step procedures, then fact-check them with a second AI pass and your expert review. Your name on every procedure, permanently.
The same data would cost $169/mo from Mitchell1 or $30/year from ALLDATAdiy — and you'd be renting access, not freeing it. Sponsor once, free forever.
Sponsor the Acura CL — $99 →
Building an app?
Free API access to all this data — 50 requests/day, no card required.
Get an API key →
Run a shop?
Manage repairs, estimates, and customers with ShopBase — $249/mo, all features included.
Try ShopBase →