I have intermittent spark at the plug wires; compression is 123/125, swapped out coil for one I know is good, same thing. Sparks once, then nothing, motor rolls over easily, if you give it fuel, pops(occasional spark lighting fuel-I believe) but will not start. Coil, wires, and plugs are good. Seems to me, that signal is bad? Any ideas?? I know it’s getting fuel, VOS is hooked up, and fuses under side cover are all good.
Monique, Replace the vehicle altitude sensor found behind the battery on the left side under the fuse block. Check the service manual for exact location. I think I’m close and have seen many of these go bad. Wrench Safe, FMH