car flooding out when first started

[97SILVERBIRD]

When I start my 97 , 3.8 Firebird up and step on the accelerator when it is park it acts like it is flooding out. This only last 10 /15 seconds and then it runs fine . No engine check light has come on. Any ideas
Thanks

[97rs4life]

Re: car flooding out when first started

maybe a sound clip of said issue would help diagnose

[Guest]

Re: car flooding out when first started

Is it hard starting too? Maybe a fuel pressure regulator. Sometimes my 98 would fire right up, other times take 5-8 secs b ut always seemed to run rough for about 8-10 secs. It would also kind of get that flooding out effect if I try to rev it immediately after starting.
If you know someone who has a pressure gauge, you can do a bleed down check on fuel pressure to see if regulator is holding.

[Barbadian Camaro]

Re: car flooding out when first started

I was reading along and was wondering what would happen if you let it warm up and see what happens

[loser]

Re: car flooding out when first started

if the motor is cold you have no reason to be revving it anyway, not good for it.

keep in mind, when you cold start, the czr runs in open loop mode ( a "default" of sorts ) untill the o2 sensors are up to temp and then the computer goes into closed loop where it takes info from the sensors. first few secs the cars running its running on gerneral outlines as far as air and fuel ect go.