MajorVery commonEngine

Toyota Crown: 2JZ-FSE D-4 Direct Injection Carbon Buildup on Intake Valves

2JZ-FSE D-4 Direct Injection Carbon Buildup on Intake Valves is a very common engine fault on the Toyota Crown on the 1999–2008 cars, and we rate it major. Putting it right costs $600 to $1,800 at New Zealand independent workshop rates. Below is what goes wrong, the symptoms to notice on a test drive, where to look, and what to ask the seller before you hand over any money. It is one of 24 documented faults on the Toyota Crown.

Vehicle: Toyota Crown
Engine: 2JZ-FSE
Years: 1999–2008
Fuel: petrol
Gearbox: auto
System: Engine

This page covers the Toyota Crown as a model. Some faults only affect particular engines or build years — enter a plate below to narrow the list to one car.

All Toyota Crown faults24 documented faults on this model

What you are looking at

No photograph available

We do not hold a verified photograph of the PCV / oil separator yet. We would rather show none than show a picture of a different part.

What goes wrong

The 2JZ-FSE uses Toyota D-4 direct injection, spraying fuel directly into the cylinder rather than through the intake ports. Without fuel washing the valve faces, oil vapour from the PCV system deposits carbon on intake valve stems and seats. Heavy deposits restrict airflow and cause rough idle, hesitation, misfires, and power loss. Walnut-blast cleaning or manual scraping requires partial disassembly and is due on most examples above 150,000 km.

What you would notice

Rough idle particularly when cold
Hesitation or stumble on light throttle application
Reduced power output at all rpm ranges
Misfire codes P0300–P0306 on OBD scan

How to check it

Where to look. Intake valves inside cylinder head, accessed via intake manifold removal

Request OBD scan for misfire codes. Ask for intake cleaning history. On examples above 150,000 km with no cleaning record, budget for the service. If a workshop inspection is possible: Use a borescope to inspect intake valve faces through intake ports with manifold removed or vacuum line disconnected for access.

Parts involved: PCV / oil separator.

What it costs to put right

$600 to $1,800 at New Zealand independent workshop rates. That is for this job on its own, not for the car.

An estimate, in NZD, for the repair as normally carried out. What a specific car costs depends on which part has failed and what it damaged on the way — treat this as the floor for a negotiation, not a quote.

Ask the seller

“Has the intake been walnut-blasted or chemically cleaned?”
“Any rough idle or hesitation on acceleration?”
“What is the full service history and current mileage?”

Now check the Toyota Crown you are actually looking at

Everything above is true of the model, and it is free. What it does not tell you is whether THIS car has been looked after: its odometer history and whether the reading has ever gone backwards, whether there is still money owing on it, whether it has been reported stolen, how many owners it has had and what it is really worth today. That comes from the official records for that plate. Enter the plate for the free details, or get the full history and a market valuation from $13.49.

Not sure what you would be paying for? See what a full KickTyres check includes.

Where this comes from

The failure described above is documented in published sources — owner forums, technical service bulletins, recall notices and workshop write-ups — held in our fault database. The inspection instructions and the cost estimate are KickTyres’ own interpretation of them, and it is a starting point for an inspection rather than a manufacturer statement.

Toyota Crown buyer questions

Is 2jz-fse d-4 direct injection carbon buildup on intake valves serious on a Toyota Crown?

We rate it major and very common on the Toyota Crown. The 2JZ-FSE uses Toyota D-4 direct injection, spraying fuel directly into the cylinder rather than through the intake ports. Without fuel washing the valve faces, oil vapour from the PCV system deposits carbon on intake valve stems and seats. Heavy deposits restrict airflow and cause rough idle, hesitation, misfires, and power loss. Walnut-blast cleaning or manual scraping requires partial disassembly and is due on most examples above 150,000 km.

How much does it cost to fix on a Toyota Crown?

$600 to $1,800 at New Zealand independent workshop rates. That figure is for this job on its own. A car showing the symptoms on this page is usually worth either walking away from or negotiating down by at least the repair figure.

Which Toyota Crown years are affected?

Our research records this fault on the 1999–2008 Toyota Crown. Build dates move around, especially on imported cars, so treat the range as the years to look hardest at rather than a guarantee either way. The official records tell you the exact build and first registration date for the car in front of you.