Parts for your 2002 Honda Stream-Fuel cap

2002 Honda Stream fuel cap — what it does, why it matters, and how to look after it

Technical references confirm the 2002 Honda Stream absolutely uses a conventional screw-on fuel cap. The Honda Stream 2001–2006 (RN1–RN5) Service Manual (Fuel and Emissions: Fuel Tank and Lines) details a sealing cap as part of the evaporative emissions control system, and the Honda Electronic Parts Catalogue lists a fuel filler cap for these models (commonly P/N 17670-S5A-013 or its superseding equivalent, market-dependent). That makes the fuel cap relevant and required on every 2002 Stream.

On this model, the fuel cap’s job is simple but critical: it seals the tank to stop petrol vapour escaping, keeps dust and water out, and lets the EVAP system do its thing so the car meets emissions rules and doesn’t stink of fuel. A healthy cap helps maintain the slight pressure/vacuum the ECU expects. When the seal’s tired or the cap’s not done up properly, you’ll often cop a Check Engine Light with EVAP leak codes (like P0455 or P0456), a whiff of fuel around the left-rear quarter, or visible cracking on the cap’s rubber gasket.

As part of servicing of your 2002-honda-stream fuel-cap, it’s worth inspecting the cap every oil change. Look for a perished O-ring, damaged tether, or a filler neck that’s gummed up with grit. Replacement is straightforward and affordable, stick with an OEM cap or a quality aftermarket unit that’s EVAP-compatible and ADR-compliant. If you’re chasing part numbers, many RN-series Streams share the cap used on early-2000s Civics, your VIN will confirm the exact supersession.

Fitment and day-to-day use are easy: tighten the cap until it clicks—usually three audible clicks—so the seal beds in without overdoing it. If the MIL pops on after a fill-up, recheck the cap, click it home, then give the car a few drive cycles to clear the code. A light smear of silicone-safe rubber conditioner on the gasket (never petroleum grease) can keep it supple, especially in hot Aussie or Kiwi summers.

• Inspect the cap seal each 10,000–15,000 km.
• Clean the filler neck lip with a lint-free cloth.
• Replace the cap if the gasket’s cracked, the cap won’t click, or EVAP leak codes persist.
• Ensure the tether isn’t pinched so the cap seats squarely.
• After refuelling, click it tight before closing the fuel door—no dramas, no smells.

Bottom line: the 2002 Honda Stream relies on a properly sealing cap for safety, economy, and emissions. It’s a small part that saves big headaches.

Popular questions about the 2002 Honda Stream fuel cap

What fuel cap part number fits a 2002 Honda Stream?
Many RN1–RN5 Streams use a cap listed as 17670-S5A-013, with regional supersessions. Because markets vary (Japan, Europe, NZ/AU), the best bet is to confirm by VIN in the Honda EPC or with a dealer/parts specialist.

Why did the Check Engine Light come on after refuelling?
Most likely the cap wasn’t clicked tight, or the gasket’s worn. Refit the cap until it clicks, then drive normally, the ECU will usually clear an EVAP small-leak code after a few trips. If it keeps returning, the cap or EVAP plumbing needs a closer look.

How tight should the cap be on a Stream?
Tighten until you hear/feel multiple clicks—don’t reef on it. Over-tightening can distort the seal. If it won’t click or the seal looks flattened or cracked, replace the cap.