Parts for your 1998 Daihatsu Gran move-Egr valve

1998 Daihatsu Gran Move EGR valve — is it actually there?

Short answer for Australia and New Zealand: an EGR valve generally isn’t fitted to the 1998 Daihatsu Gran Move (petrol). This conclusion comes from Daihatsu’s Electronic Parts Catalogue (G30# Gran Move/Pyzar listings for AU/NZ), which shows no EGR valve or related pipework/modulator for local-spec cars, plus factory workshop manual emissions schematics for the HE-E/HD-E petrol engines that omit EGR on “General/Europe/Australia” variants. It also lines up with the emissions rules of the day (ADR 37/01 and Euro 2), which didn’t require an external EGR system for small-capacity petrol engines to meet NOx targets.

Why no EGR on the 1998 Gran Move in AU/NZ? Daihatsu met the standard using closed-loop fuel control, a three-way catalytic converter, oxygen sensor feedback, evaporative emissions control (charcoal canister), and PCV. For these engines, an external EGR valve didn’t add enough emissions benefit to justify the extra cost and complexity, so the local-spec cars were calibrated to run clean at stoichiometric AFR without recirculating exhaust gas. That’s very normal for late-90s small petrol engines sold here. Some Japanese Domestic Market Pyzar variants did use EGR hardware, which is why owners sometimes see EGR diagrams online and get confused—but those don’t apply to AU/NZ delivered vehicles.

If a workshop suggests an “EGR fault” on a 1998 Gran Move in Australia or New Zealand, it’s worth double-checking the engine spec and build plate. In most local cars, there’s no EGR valve to fail. Instead, look to the usual suspects for rough running, high emissions, or failed inspections: vacuum leaks, a lazy oxygen sensor, a clogged PCV valve, a tired catalytic converter, or a dirty throttle body/IAC passage. Those items do exist on this model and make a noticeable difference when serviced.

• Technical references owners and techs rely on:
  • Daihatsu Electronic Parts Catalogue (G30# Gran Move/Pyzar) — AU/NZ listings show no EGR valve assembly.
  • Daihatsu Gran Move/Pyzar factory workshop manual (G30# series) — emissions control schematics for HE‑E/HD‑E engines note EGR as market-dependent and not shown for AU/NZ.
  • ADR 37/01 and Euro 2 frameworks — allow compliance without external EGR on small petrol engines using a three‑way catalyst and closed‑loop control.

What to service instead of an EGR valve on a local 1998 Gran Move:

1. PCV valve and hose — replace if gummed up.
2. Oxygen sensor — ageing sensors hurt fuel economy and emissions.
3. Throttle body and idle control passages — clean to stabilise idle.
4. Vacuum hoses — renew brittle lines to prevent lean codes and stumbles.
5. Catalytic converter — check backpressure and condition if power is down.

Note for grey imports: If the vehicle is a JDM Pyzar or a swapped engine, it may indeed have an EGR valve. Look for a metal pipe linking the exhaust manifold to the intake plenum and a small diaphragm/solenoid assembly near the throttle body.

Popular questions about the 1998 Daihatsu Gran Move EGR valve

Does a 1998 Daihatsu Gran Move in Australia or New Zealand have an EGR valve?
Most local-spec petrol Gran Move models don’t have an EGR valve. Daihatsu met the emissions rules here using a three-way catalytic converter, O2 sensor feedback, PCV, and evap control. If the car is a grey-import Pyzar, it may differ—check for an exhaust-to-intake metal EGR pipe.

Where would the EGR valve sit if my Gran Move had one?
On EGR-equipped variants, the valve typically mounts near the intake manifold with a stainless pipe running from the exhaust manifold, plus a vacuum/solenoid control. On AU/NZ cars you won’t find this pipework, which is a quick way to confirm it’s not fitted.

What should be serviced instead of an EGR valve on this model?
Prioritise the PCV valve and hoses, the oxygen sensor, throttle body and idle passages, and general vacuum plumbing. Keeping these tidy usually fixes the drivability and emissions complaints that sometimes get (incorrectly) blamed on a non-existent EGR valve.