1997 BMW 318TI E36

1.9L I4 M44RWDAUTOMATICgas
Founding sponsor spot is openYour name on every procedure for this vehicle, permanently.Sponsor — $99 →
P1519moderate severityPowertrain

Idle Control Valve Position Circuit

on 1997 BMW 318ti E36 1.9L I4 M44 · RWD

What this code means

The DME detected a malfunction in the idle control valve (ICV) position circuit. The ICV regulates airflow at idle to maintain a stable engine speed. On BMW engines, this is commonly caused by a sticking or carbon-fouled valve.

Symptoms

  • Rough or unstable idle
  • Engine stalling at idle
  • Idle speed too high or too low
  • Check Engine Light

Common causes

  • Carbon-fouled idle control valve
  • Faulty idle control valve motor
  • Wiring issue to ICV
  • Vacuum leak affecting idle
  • DME output driver failure

Diagnostic steps

  1. Test ICV operation by commanding open/close with scan tool
  2. Measure ICV motor resistance
  3. Clean ICV with throttle body cleaner
  4. Check vacuum lines around throttle body
  5. Inspect ICV wiring

Repair notes

Clean the idle control valve with throttle body cleaner; replace if cleaning does not resolve the issue.

Other Powertrain codes on this vehicle

⚠ STILL BEHIND THE PAYWALL
The 1997 BMW 318ti E36 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 BMW 318ti E36 — $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 →