Warm Start Problem
 

Hopefully someone can help with this issue I started noticing a few weeks ago. Car starts w/o problem when cold or when hot, i.e after a cold night no issue and after a long freeway drive no issue to start the engine.

However, when the engine is just warm, oil temperature is just above the lowest mark, the engine will not start unless I "help" with a little accelerator support. I get the Engine Warning light but it goes out after a couple of seconds.

Car has new spark plugs, new rotor and new distributor, distributor belt is fine, new oxygen sensor

Initial thoughts were:

- Temperature sensor - checks out fine
- Spark plug wires - check out fine
- Fuel pump relay - checks out fine

Please help. Any idea is welcome.

Thanks!

Could be a bad microswitch, not enough slack in the throttle cable causing the microswitch not to engage, or ISV.

Ran the codes today and nothing came up. So, I hope it is a mechanical issue, i.e fuel pressure regulator. Fuel filter is new.... Will let you know if this is it... Parts are on the way.