2008 Ford Focus Ztec - engine issue By GingerOverlord, Monday at 12:01 PM. 6 replies; 195 views; 2007 Ford Focus Eng Malfunction Light on then off. An update my power is back in the car and the engine malfunction sign is gone. Hitting 80/90ph is just like before. So what I should have added originally is that I had an engine management light on since Feb with Dpf codes but as it didn't cause driving issues I just thought it was a sensor issue and just kept driving normally and this engine management light came straight after changing my One of the most common reasons for a check engine light in your Focus is also the easiest problem to fix. A loose gas cap is often the reason the check engine light turns on. This happens because the engine detects a leak in the evaporative emissions system, which exists when the gas cap isn’t tightened until it clicks. It’s easy, and it Top 5 Symptoms of an Engine Immobilizer System Malfunction. Like anything else that is electronic, an immobilizer system can malfunction and case some problems for you. Here are the 5 most common signs that you can expect to experience if there’s a problem somewhere in your car’s immobilizer system. #1 – Unlocking Problems this Ford focus would not start sometimes the engine would turn over but not fire up.then sometimes it just wouldn't even turn over no response from the key. Anyway, driving down a dual carriageway earlier today. My engine has the warning siren go off and a message on my dash says "Engine Malfunction". I lost power in my engine, so I pull over and turn the engine off. After a minute, I start it again and it's all back to normal. The check engine light is on, but that's not unusual, and it seems to I assumed that either (somehow) it had detected the oil had become so degraded and the oil change fixed it, or it brings up "Engine Malfunction" after a certain number of miles have been driven with the oil service warning ignored. So, as the car is quite old now, I decided to do the oil change myself - did this and reset the service warning Hello, I picked up my 2008 1.8 Zetec Focus on Wednesday from a local used car dealer, its on 105k with FSH When i was driving it home the car was telling me it was -50° outside which i thought was strange but didn't think anything of it. JPudZzI.