Drove my car to work this morning and it was fine. Was about to head over to a friend's house this afternoon, when I started my car and it was dying.
The Check Engine Light is on, and the idle is either very lopy (it goes from like 400-800 and almost stalls everytime) or steady at 500rpm, which is barely enough for it to stay alive.
I checked the fault codes, nothing is showing. I unplugged the AFM, and the car died. I unplugged the ICV and there was no change in anything. Checked all connections, looking for any loose vacuum tubes, checked the plug wires, everything looks fine. The only known issue is a leaking heater valve, and an exhaust leak at the manifold to downpipe connection.
The exhaust leak has been around for a while, and it is on the pipe that the O2 sensor is. But if the O2 failed, why didn't it throw a fault code? And can a bad O2 cause the above symptoms? I don't think its the O2 because wouldn't it only cause trouble once it is warmed up? This started when the car was bone cold.
Thanks in advance.
The Check Engine Light is on, and the idle is either very lopy (it goes from like 400-800 and almost stalls everytime) or steady at 500rpm, which is barely enough for it to stay alive.
I checked the fault codes, nothing is showing. I unplugged the AFM, and the car died. I unplugged the ICV and there was no change in anything. Checked all connections, looking for any loose vacuum tubes, checked the plug wires, everything looks fine. The only known issue is a leaking heater valve, and an exhaust leak at the manifold to downpipe connection.
The exhaust leak has been around for a while, and it is on the pipe that the O2 sensor is. But if the O2 failed, why didn't it throw a fault code? And can a bad O2 cause the above symptoms? I don't think its the O2 because wouldn't it only cause trouble once it is warmed up? This started when the car was bone cold.
Thanks in advance.
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