Parts for your 2006 Honda Odyssey-Fuel injectors

2006 Honda Odyssey fuel injectors – what they do and how to look after them

Technical sources confirm the 2006 Honda Odyssey absolutely runs fuel injectors. The Honda Service Manual for the 2005–2010 Odyssey (Fuel & Emissions, PGM‑FI) specifies a multi‑port Programmed Fuel Injection system, with one injector per cylinder on the J35 V6. Honda’s parts catalogues for the 2006 model year also list individual injector assemblies and seals, so fuel injectors are both used and relevant on this vehicle.

On the 2006 Odyssey, the injectors precisely meter and atomise petrol into each intake port, with the ECU commanding pulse width based on airflow, load, coolant temp and oxygen sensor feedback. That fine spray helps the V6 start cleanly, pull strongly through the revs, and keep fuel economy in check on long Kiwi and Aussie motorway runs.

There’s no scheduled replacement interval for injectors, but they do benefit from sensible maintenance. Quality fuel, periodic intake and injector cleaning, and fresh filters go a long way. Many owners opt for a professional on‑car clean or ultrasonic bench service around 120,000–180,000 km, especially if the Odyssey sees lots of short trips. If an injector fails electrically or leaks, replacement is the fix—ideally as a matched set for even flow, though single replacements are common when diagnostics point to one cylinder.

Common symptoms of injector trouble include rough idle, hesitation on take‑off, misfire codes (P030x), lean/rich codes (P0171/P0172), hard starting, higher fuel use, or a raw‑fuel smell. Before swapping parts, good workshops will check fuel trims, perform a cylinder balance test, verify fuel pressure, and inspect the injector connectors and grounds. When replacing injectors, always fit new upper and lower O‑rings, relieve fuel pressure before cracking the rail, and check for leaks on restart. On the transverse J35 V6, access to the rear bank is tighter, removal of the upper intake plenum may be required, so fresh gasket(s) are wise. After work, an idle relearn helps the ECU settle trims.

Genuine Honda injectors tend to be the safest bet for long life, with reputable aftermarket units a cost‑effective option if they’re flow‑matched and come with quality seals. As a guide for local owners, it’s normal to see injectors last well past 200,000 km if fed decent fuel and serviced on time.

• Best practice: quality petrol, periodic cleaning (20,000–30,000 km), fresh filters
• Replace seals any time an injector is removed
• Scan, test, and confirm before replacing parts

Popular questions about 2006 Honda Odyssey fuel injectors

How many fuel injectors does a 2006 Odyssey have and where are they?
It has six—one per cylinder. They sit in the intake manifold at each port under the fuel rail. On this transverse V6 there’s a front bank and a rear bank, the rear injectors are tucked closer to the firewall and may require removing the upper intake plenum for access.

Do fuel injectors need routine replacement on this model?
No fixed interval. They’re a service‑on‑condition item. With quality fuel and the occasional clean, injectors commonly last 200,000 km or more. Replace if diagnostics confirm a mechanical or electrical fault, or if cleaning won’t restore proper flow.

What does it typically cost to replace injectors in Australia or New Zealand?
Expect roughly 2–4 hours of labour depending on access and how many are replaced. Parts vary: aftermarket units might run AUD/NZD $80–$250 each, while genuine can be AUD/NZD $180–$400 each. A full set fitted can land anywhere from around AUD/NZD $600 to $1,500+, depending on parts choice and workshop rates.