Ford Transit 2.3L Petrol Fuel System 1 Status OL-Fault: Erratic Idle and Stalling
I own a 2004 plate Ford Transit with a 2.3L petrol engine. The vehicle exhibits erratic idle behavior—engine vibrates and rocks before stalling. There are no stored fault codes on the ECU, but live data shows a 'Fuel System 1 Status OL-Fault' entry. I'm looking for guidance on how to diagnose and resolve this issue. Any advice on clearing or troubleshooting this specific fault would be greatly appreciated. Thank you. Veeman
The use of the term 'petrol' suggests you're not in North America—this is a common engine type we frequently encounter there. The fault code might be due to your code reader being incompatible or lacking support for certain diagnostics. If live data is available, please check the fuel trim values—they can indicate if the engine is running lean or rich. A noid light could help verify injector pulse activity. In general, start with the basics: spark plug condition, injector pulses, and cylinder compression to rule out fundamental mechanical issues.