Hard Starting Still.....

[BennyLumpkin]

Ok so I've had the fuel pressure checked, ran a scanner on it, tried pretty much everything short of throwing parts at it because I don't do that. My 02 will fire right up when cold, or hot, but let it sit an hour and it doesn't want to start without giving it a bit of pedal.....what gives?

 

[LS4me]

Ok so I've had the fuel pressure checked, ran a scanner on it, tried pretty much everything short of throwing parts at it because I don't do that. My 02 will fire right up when cold, or hot, but let it sit an hour and it doesn't want to start without giving it a bit of pedal.....what gives?

Leaky injector? Sub-standard (non-Top Tier) fuel?

 

[2002_lincolnLS]

That's my first thought as well. You may find a way to test that but not sure. You may be able get a stethoscope and listen to it after you shut it off and listen if it they are closing or not. But if you wait long enough it'll start up seeing as the extra fuel evaperates

 

[BennyLumpkin]

I'm not sure....maybe next tank I'll run some high test in it and see if it makes a difference....I've never had a car that high or low test made any noticeable difference.

 

[LS4me]

I'm not sure....maybe next tank I'll run some high test in it and see if it makes a difference....I've never had a car that high or low test made any noticeable difference.

You're NOT running 91+ octane? That could very well be your problem!

 

[2002_lincolnLS]

Placing palm firmly on my face.......

 

[BlackLS06]

I dont get why people run under 91 when the tank clearly says 91+. Hell i run 93.