Mustang gt 05 09
Fighting this trouble 4 years, fuel lean 171 174. After 500 km driving pops, car uneven acceleration, when heats up, if i let her go when engine warm uphill, whole engine starts rattles, but if i step on gas pedal shes fine. I left here once for month, when i started car was like new animal, response on pedal was like beast for 2 or 3 minutes ... I lost 17k euros on hundreds mechanics, i dont even know why im here
Well it's running lean on both sides. It could be a simple as the electric fuel pump starting to go out and doesn't provide enough fuel. But it could also be clogged injectors. Could be lots of things you need to find a guy like me. You can hook up a scan tool and analyze the live data to see what the source of a problem is. And of course you can have the fuel pump pressure test and Valium tested to see if it's that simple of a fix
