All codes › P0108
P0108: Manifold Absolute Pressure Circuit High Input
What it means
The MAP sensor signal voltage is too high (reads as no vacuum).
Severity: Medium Lean or rough running possible; check for a disconnected hose.
Common causes
- Disconnected vacuum hose to sensor
- Failed MAP sensor
- Signal shorted to voltage
- Engine mechanical issue (low vacuum)
Most common causes first. Exact causes vary by make, model and engine.
Can I fix it myself?
Often DIY. Reconnect or replace the sensor hose; replace sensor if voltage stays high.
Repair cost
SEEDED ESTIMATE Roughly $60–$310
Most likely repair: map sensor. Diagnosis fees, taxes and other causes are not included.
| Line | Low | High | Basis |
|---|---|---|---|
| MAP sensor | $30 | $180 | Typical listed retail range, source ($309–$550 listings excluded) |
| Labor 0.3–0.8 hr | $30 | $128 | $100–$160/hr, shop survey |
⚠️ This is an editorial placeholder range for this type of repair. It is not based on real invoices or licensed pricing data yet. Real ranges will appear here once enough reader invoices for P0108 are verified.
Verified reader invoices for P0108: 0. Share your repair bill to help build real costs.
Tools that can read P0108
- ScanFixAI: Pro $29.99/mo or $249.99/yr
- OBDAI: Annual PRO bundle $299
- BlueDriver Pro Next-Gen: $119.95 list ($99.95 sale seen)
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