P0208

Cylinder 8 Injector A Circuit

Q: Is it safe to drive with P0208?

Not for long. A dead injector means cylinder 8 misfires, and sustained misfires can quickly overheat and destroy the catalytic converter. Repair it before driving much further.

Q: Can I just clear P0208?

It returns within a drive cycle or two while the injector or its circuit is faulty. This is a wiring/component fault, so it needs a real repair, not just a reset.

Fuel injector circuit Generic OBD-II High

What it means

P0208 means the computer detected a fault in the electrical circuit that fires the cylinder 8 fuel injector. When that circuit fails the injector often stops firing, so cylinder 8 misfires and the engine runs rough and down on power. Because sustained misfires can damage the catalytic converter, it's worth fixing quickly — usually a failed injector or its wiring.

High

Can I keep driving? Drive as little as possible — an injector circuit fault usually means cylinder 8 isn't firing, causing a misfire that can overheat and damage the catalytic converter.

Real-world scan data

Seen in

scans in the past year

Found in

<0.1%

of scans

<0.1%

of scans that found faults

Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.

Common symptoms

What you'll notice

Check-engine light on (may flash during an active misfire)
Rough running, shaking, or misfire
Reduced power and hesitation on acceleration
Poor fuel economy, possible raw-fuel smell

Common causes

Most likely first

Failed injector for cylinder 8 (open or shorted coil)Likely
Open, shorted, or chafed wiring in the cylinder 8 injector circuitCommon
Corroded or loose injector connectorCommon
Poor injector driver ground or supplyLess often
Rarely, an ECM/PCM injector-driver faultLess often

How to diagnose & fix

Work through it in order

Read freeze-frame data and confirm the misfire is on cylinder 8.
Inspect the cylinder 8 injector connector and wiring for damage, corrosion, or a loose fit.
Measure the injector's resistance against spec and compare with the other injectors.
Check for injector-drive signal and proper power/ground at the connector.
Replace the injector if it's open or shorted and the wiring is good. Clear and re-test.

FAQ

Quick answers

Is it safe to drive with P0208?+

Not for long. A dead injector means cylinder 8 misfires, and sustained misfires can quickly overheat and destroy the catalytic converter. Repair it before driving much further.

Can I just clear P0208?+

It returns within a drive cycle or two while the injector or its circuit is faulty. This is a wiring/component fault, so it needs a real repair, not just a reset.

Read & clear P0208 yourself

Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.

▶ Get it on Google Play

✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX