im having a problem at cold start. like the first start of the morning it won't start unless i open the throttle body up a tiny bit and then she will start....once its warm it fires right up almost as soon as i turn the key. i checked the IAC, its got a new MAF MAF relays (yes i got the correct ones)and fuel presure is good. now the funny thing is that it kinda started happening around the time it started all this code 33 b/s. so im kinda stumped anybody have any ideas? i was thinking maybe the cold start injector isn't working

thanks in advance guys

 

I just had a similar problem with my 88 trans am, turned out to be a vaccum leak.

 

that was the first thing i checked....i had a local shop do a smoke test for me....everything is sealed up