{"id":21342,"date":"2025-10-02T20:00:29","date_gmt":"2025-10-02T18:00:29","guid":{"rendered":"https:\/\/www.checkstar-techblog.it\/ford-c-max-ii-cb7-2012-ford-c-max-mancate-accensioni\/"},"modified":"2025-10-03T09:16:00","modified_gmt":"2025-10-03T07:16:00","slug":"ford-c-max-ii-cb7-2012-ford-c-max-ignition-failure","status":"publish","type":"post","link":"https:\/\/www.checkstar-techblog.it\/en\/ford-c-max-ii-cb7-2012-ford-c-max-ignition-failure\/","title":{"rendered":"FORD C-Max 1.6 Duratec 16V from 2012 - ignition failure"},"content":{"rendered":"<p>Good evening, everyone,<br \/>\nThis car arrived at the garage with a problem of misfiring and irregular idling (after a few minutes of running): the engine runs smoothly until accelerated after starting, then as the engine warms up and reaches idle speed it starts to lose steam, runs irregularly, misfiring on 1-4 cylinders and sometimes even a few pops, in gear it pitches and lacks acceleration.<br \/>\nWe have already replaced spark plugs, coil, ignition cables and tried four working injectors of another similar car without any results.<br \/>\nAlso tested compression, smooth and identical on all cylinders, also tried removing the upstream probe to facilitate exhaust gas discharge.<br \/>\nThe feeling is that the engine runs on 3\/4 cylinders but only after it warms up.<br \/>\nIn diagnosis only faults related to misfiring and rich mixture the spark plugs turn black.<br \/>\nThank you to everyone who can help me.<\/p>\n<table class=\"table table-sm loggedtarga\">\n<tbody>\n<tr>\n<th scope=\"row\">Number plate<\/th>\n<td>- EK543NT -<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Brand<\/th>\n<td>- FORD -<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Model<\/th>\n<td>- C-Max (II CB7) -<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Year<\/th>\n<td>&#8211; 2012 &#8211;<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Displacement<\/th>\n<td>&#8211; 1500 &#8211;<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Power supply<\/th>\n<td>&#8211; 92 &#8211;<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">kW<\/th>\n<td>&#8211; 92 &#8211;<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Engine Code<\/th>\n<td>- PNDD -<\/td>\n<\/tr>\n<\/tbody>\n<\/table>","protected":false},"excerpt":{"rendered":"<p>Good evening everyone, I received this car at the workshop with a problem of misfiring and irregular idling (after a few days of work, I [...].<\/p>","protected":false},"author":1643,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[170],"acf":[],"featured_image_urls":{},"appp_media":null,"views":587,"_links":{"self":[{"href":"https:\/\/www.checkstar-techblog.it\/en\/wp-json\/wp\/v2\/posts\/21342"}],"collection":[{"href":"https:\/\/www.checkstar-techblog.it\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.checkstar-techblog.it\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.checkstar-techblog.it\/en\/wp-json\/wp\/v2\/users\/1643"}],"replies":[{"embeddable":true,"href":"https:\/\/www.checkstar-techblog.it\/en\/wp-json\/wp\/v2\/comments?post=21342"}],"version-history":[{"count":0,"href":"https:\/\/www.checkstar-techblog.it\/en\/wp-json\/wp\/v2\/posts\/21342\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.checkstar-techblog.it\/en\/wp-json\/wp\/v2\/media?parent=21342"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.checkstar-techblog.it\/en\/wp-json\/wp\/v2\/categories?post=21342"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.checkstar-techblog.it\/en\/wp-json\/wp\/v2\/tags?post=21342"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}