88 Fiero will not idle up/weak spark

[kanouse660]

Car will only start with gas pedal down, and will stall when foot is removed. It sounds like the computer is not controling the timing or just sounds like that because of weak spark maybe. The coil and ign. module pass all tests. With new plugs, cap, rotor and wires I can only get a Purple, not quite good Blue spark with a gap of .025 (this was the best of more or less gap) The computer says 45 (rich exhaust) The O2 sensor and fuel pressure regulator are new and the cold start valve was checked. Could not find vacuum leaks or plugged lines anywhere. Also if the coil wire is grounded or held by a ground i get a better Blue and Orange spark. Could this be from low battery/alternator performance even though the starter turns like normal ? What else could cause the weak spark ? With the plug gap at .025 I was able to get it to start, before; nothing. There is 1.6 ohm resistance in the harness from the distributor to the coil. Is that ok ? What else could be the problem ???

 

[Oreif]

Leaking/dirty injectors can cause the running rich/having to keep pedal down to run.
They tend to spit rather than spray when they are real dirty or their seals are going bad.
As for spark, It could be a couple of things:
The coil could be going bad and it gets worse with heat.
The Ignition Module could be going bad.
Pick-up coil could be going bad.