[gargoyle_6996]

I have a 99 blazer with some issues that just can't seem to figure out. I have had the trans rebuilt, new intake, manifold, exhaust, spark plugs, and among other things just replaced on it.

When i go to start it up it seems fine, untill i either put it in reverse or drive, and go to gas it it seems to hesitate. Sometimes but not all the time, i can put it in reverse and just gluide out of a parking space it hasitates and then stalls out.

i have had my brother look at it and had a computer hooked up to it. These are the codes that have came up, P0171B1 P0174B2, P1441B, P1380c

There is no engine light on, when i start it up thats when i have the problem of hasitation or stalling, i usually leave it in park and reve up the engine a bit tell it stops. Still going down the road i will still have the same problems.....

Any advice?????