2001 Vauxhall Zafira can you bypass the egr valve?
Year: 2001
Variant: 1.6 16v
Categories:
Electrics, ECU, Warnings & Lights
as took it the garage AGAIN and they now say that they have updated the ecu to bypass the egr valve, can this be done and what is the purpose of the egr valve?
Posted: Jul 9, 2008 (15 years ago)
the egr valve--when on cruse (not idle or wide open throttle) the ecu opens the egr valve this takes a sample of engine output(exhaust fumes)from the exhaust and puts it back into the inlet manifold, this changes the temp in the combustion chamber. improves fuel economy and reduces emissions.(a little).older systems can be blocked with little change to ecco and emissions. sorry dont know zafira syster well enough ecu remapping poss ask vauxhall if its poss.later cars may have problems with euro 5 emission laws mot etc?
Posted Jul 11, 2008 (15 years ago)
yes you can reprog the ecu on zafiras with tech 2 to disable the egr valve.
Posted Jun 23, 2009 (14 years ago)
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