{"id":20428,"date":"2025-04-17T08:55:28","date_gmt":"2025-04-17T06:55:28","guid":{"rendered":"https:\/\/www.checkstar-techblog.it\/lancia-y-840a-2003-a-motore-caldo-lauto-si-spegne\/"},"modified":"2025-04-17T09:05:32","modified_gmt":"2025-04-17T07:05:32","slug":"lancia-y-840a-2003-a-motore-caldo-lauto-si-spegne","status":"publish","type":"post","link":"https:\/\/www.checkstar-techblog.it\/en\/lancia-y-840a-2003-a-motore-caldo-lauto-si-spegne\/","title":{"rendered":"LANCIA Y 1.2 8V, 2003 - The car switches off when the engine is hot"},"content":{"rendered":"<p>Good morning everyone, I have this car that has a problem and we can't find a way out of it, I'll describe the defect: when the engine is hot and especially with the bonnet closed, if we leave it idling it suddenly switches off, I restart it with the accelerator pressed down, it starts up again with a rise in revs and then immediately switches off and continues like this until we leave it to cool down for a few minutes. I've replaced several parts: two engine control units, rev sensor, spark plugs, spark plug wires, coils, throttle body, we reinforced the ground to the throttle body-engine-body, checked the ECU power supply, disconnected the knock sensor. There are no fault codes in the diagnosis, we noticed that when the car is about to switch off, the relay that feeds the petrol pump-coils-injectors- lambda probes starts pulsing, it's really the command from the engine control unit to the relay that pulses. It's as if it's the control unit that at a certain temperature goes into protection, cooling it with water or compressed air the engine starts immediately and runs well until it warms up and returns to the same fault. The car is converted to LPG but we have ruled out the ECU. By chance colleagues if you have any ideas we will gladly accept them, thank you, best regards<\/p>\n<table class=\"table table-sm loggedtarga\">\n<tbody>\n<tr>\n<th scope=\"row\">Number plate<\/th>\n<td>- CH641XH -<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Brand<\/th>\n<td>- LANCIA -<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Model<\/th>\n<td>- Y (840A) -<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Year<\/th>\n<td>&#8211; 2003 &#8211;<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Displacement<\/th>\n<td>&#8211; 1200 &#8211;<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Power supply<\/th>\n<td>- B -<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">kW<\/th>\n<td>&#8211; 44 &#8211;<\/td>\n<\/tr>\n<tr>\n<th scope=\"row\">Engine Code<\/th>\n<td>- 188A4000 -<\/td>\n<\/tr>\n<\/tbody>\n<\/table>","protected":false},"excerpt":{"rendered":"<p>Good morning everyone, I have this car that has a problem and we can't get it out, I will describe the defect: [...].<\/p>","protected":false},"author":557,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[302],"acf":[],"featured_image_urls":{},"appp_media":null,"views":833,"_links":{"self":[{"href":"https:\/\/www.checkstar-techblog.it\/en\/wp-json\/wp\/v2\/posts\/20428"}],"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\/557"}],"replies":[{"embeddable":true,"href":"https:\/\/www.checkstar-techblog.it\/en\/wp-json\/wp\/v2\/comments?post=20428"}],"version-history":[{"count":0,"href":"https:\/\/www.checkstar-techblog.it\/en\/wp-json\/wp\/v2\/posts\/20428\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.checkstar-techblog.it\/en\/wp-json\/wp\/v2\/media?parent=20428"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.checkstar-techblog.it\/en\/wp-json\/wp\/v2\/categories?post=20428"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.checkstar-techblog.it\/en\/wp-json\/wp\/v2\/tags?post=20428"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}