2008 tacoma 255,000 miles 4 cylinder, I got a PO301 code (#1 Cyl. misfire) I changed all four plugs and #1 ignition coil and all worked great for about 40 miles and then the same code came back. Not sure what my next step should be? #1 cyl. compression is 140 I've been doing some research and I think I should replace the injectors. Has anyone used rebuilt injectors? I'm looking at them on Rockauto.