The Lemon IndexThe fuel injector circuit for cylinder 3 is open or faulty, so that cylinder may get no fuel and misfire.
Get it fixed soon. A few more days of normal driving is usually OK, but waiting can turn a small repair into a bigger one or a breakdown.
Failed injector on cylinder 3. Then: broken wiring or connector; engine computer driver fault.
Owners named P0203 in 8 complaints to the U.S. government, most often on the Volkswagen Tiguan.
Cars owners report it on
Complaints that name P0203, by model. Raw counts, not a failure rate: popular models get more complaints.
Years owners report it on most: 2018 Volkswagen Tiguan
The details
What P0203 means
The fuel injector circuit for cylinder 3 is open or faulty, so that cylinder may get no fuel and misfire.
Can I drive with P0203?
Get it fixed soon. A few more days of normal driving is usually OK, but waiting can turn a small repair into a bigger one or a breakdown.
62% of the owner complaints that name P0203 also say the car shakes, runs rough or misfires. A complaint can describe more than one problem, so this doesn't prove the code caused it.
Common causes of P0203
- Failed injector on cylinder 3
- Broken wiring or connector
- Engine computer driver fault
A shop should confirm the cause with a scan and tests before replacing parts.
What owners describe
- Shakes, runs rough or misfires: 62% of complaints
- Loses power or goes into limp mode: 38% of complaints
- Warning lights and electrical faults: 25% of complaints
Share of complaints naming the code whose text also mentions each problem.
Model years that report P0203 most
Related codes
P0202 P0204 P0201 P0217 P0218 P0219 P0221 P0222
Quick answers
What does P0203 mean?
Cylinder 3 Injector Circuit/Open. The fuel injector circuit for cylinder 3 is open or faulty, so that cylinder may get no fuel and misfire.
Can I drive with P0203?
Get it fixed soon. A few more days of normal driving is usually OK, but waiting can turn a small repair into a bigger one or a breakdown.
What causes P0203?
Failed injector on cylinder 3; Broken wiring or connector; Engine computer driver fault.
Counts: NHTSA owner complaints whose text names P0203. A complaint is an owner's report, not a diagnosis. Meanings: the standard SAE J2012 definitions in our own words; manufacturer codes only where verified for that make. General information, not repair advice for your car.