I have an 01 Taurus with the 3.0L OHV engine and 153K miles. It had a head gasket blown, so I replaced all that and have it running good except for a rough idle.
I started out with getting PO302 and a PO301 pending code. I changed the plugs, wires, and coil first as all were bad. The coil had burned through it's casing and was arcing, it was on the cylinder 1 side. After all that, it was still missing. Next I took the fuel injectors out and they were pretty nasty so I soaked them in fuel injector cleaner and got them looking good. Put it back together and the PO302 was gone, but PO301 remained. I went and got a new fuel injector for it, installed it and the PO301 remained for a few miles, then got replaced by a PO302.
It runs great once it's above 1200RPM, it doesn't miss at all and it doesn't fire a code, just when it returns to idle does it start missing.
Any idea?
I started out with getting PO302 and a PO301 pending code. I changed the plugs, wires, and coil first as all were bad. The coil had burned through it's casing and was arcing, it was on the cylinder 1 side. After all that, it was still missing. Next I took the fuel injectors out and they were pretty nasty so I soaked them in fuel injector cleaner and got them looking good. Put it back together and the PO302 was gone, but PO301 remained. I went and got a new fuel injector for it, installed it and the PO301 remained for a few miles, then got replaced by a PO302.
It runs great once it's above 1200RPM, it doesn't miss at all and it doesn't fire a code, just when it returns to idle does it start missing.
Any idea?