As title, my car starts up a bit rough when hot, once I give it some gas it clears up, wondering if this has something to do with too much fuel. similar happens if I sit in idle for long, then it will eventually start to stumble, and I can see on power fc the injector duty goes to 6% where as normally it would sit around 5.2-5.3%.

could I possibly have leaky injectors? or could an overly rich idle map cause this also ? is there any way to check if the injectors are leaking ?


thanks

 

Do you only have issues getting her to start when the engine is warm? (Does it start up fine when cold?)

What is your engines history? I'd go get your compression tested. When I had hot start issues it turned out that I'd thrown a corner seal.

 

yeah really only when its hot. cold start is fine. the engine has recently been rebuilt by previous owner.

 

compression test. And check for leaky injectors.

-AzEKnightz

 

when your corner seals were going out, after your hot start, did it hold idle as normal ?

 

I had done a compression test before I bought the car, and both rotors were putting just over 100psi