Well a stuck open thermostat can put the EML on, its just emissions light, not saying it will say thermostat is stuck open but an ECU can pickup on an engine running cold and consuming to much fuel but only at motorway speeds when the airflow is high.
Hi, fitted 2nd hand throttle body from a stilo and car now runs ok and revs up ok. Fitted new map sensor but eml still staying on. Hope this helps anyone with the same problem.?