Fox1986

Erg valve I recently took my van to a ford dealer because my engine management light was on, they diagnosed it and said it was the egr valve and would cost £900 to fix because part is expensive because it comes together with a manifold for around £340.00. I've seen the egr valve on eBay for £85.00 on eBay on its own if I replaced this would I need to reset engine management to clear warning light?.