please help me!! I have a 91 ext cab dlx with the 3.0. it started to run rough from idle to around 1500 rpm, with a noticable loss of power. I found the #5 plug wire had pulled back into the boot at the distributor and had been arching. so after new plugs and wires, still rough.
check engine light came on with codes 25 & 26. But how can it be ruinning lean and rich at the same time?
can someone please help me with this.