No start

1999 SW2 was running fine-got full tank of gas on Sunday night, and didn't
use the car until Tuesday night. Went to start the car, and the engine
just cranked. I noticed that the fuel tank gauge was not moving. Later in
the evening, I checked the 10 amp fuse (lowest amp should blow first) and
it was ok. I tried starting the car again, and it started to catch. I
pulled out the fuel pump relay but you can't tell anything by just looking
at it and reinserted it. When I tried starting the car again, it cranked
right up. The fuel gauge took a couple of seconds but it also worked. I
noticed that when I shut the engine down and turned the ignition back on
right away, the fuel gauge responded instantly. But if I left the
ignition off for a minute or so, when I turned the key to Acc, it took the
fuel gauge about 3 or 4 seconds to respond. I don't know if any of this is
pertinent, but with electronics all tied together I wanted to tell all.

Now the car is starting fine, but the 'check engine light' is on. I am
bringing it over to get the code read, but would like to get any imput as
to what could be wrong.

I am not comfortable letting my wife and kids use the car until I know
what happened.

Thanks for the help

 

I hit refresh to see if my question posted, and it resubmitted it self.
Sorry

 

The code should help. Right now we would be shooting in the dark. Relays
however are pretty simple especially since a vast majority of GM's
relays have diagrams on them. Though you need a meter and some jumper
wires to check them...