Starting/cranking issue when slightly warm

[immortality]

Hey guys,

Having issues with the Calais ( VX L67 running enhanced code) when starting, starts perfect when dead cold and starts fine when @ operating temp however it never wants to start first turn of the key when it's a little warm, say after it's been driven and then sat for a couple of hours. Did it today, engine temp was about 45°C, when it does this it turns over good, seems to catch so you let go of the key but doesn't start, turn the key a 2nd time and it fires straight up.

Looking at the cranking tables (A and B) they aren't referenced to engine temp in any way and because it starts well when cold I would assume these tables are fairly accurate so I'm not sure if I should try adding a little extra pulse width to try and fix the starting hesitation when warm?

There is a table Crank - Fuel Pulse Width Multiplier V's CTS but it's all zeroed out.

Any thoughts?

[vlad01]

I would start by checking for leaking injectors as that have been 100% of the causes of my hot starting issues.

When they drip while the engine is hot, the fuel vaporizes and fills the runners, sometimes cylinders and plenum with pure fuel vapor basically a dry form of flooding.