Code remove a product in cart.
$cartHelper = Mage::helper('checkout/cart'); $items = $cartHelper->getCart()->getItems(); $sku = 'product_1'; foreach ($items as $item) { //remove product have sku is $sku if ($item->getProduct()->getSku() == $sku) { $cartHelper->getCart()->removeItem($item->getItemId())->save(); } }