The car will start and idle, but when I go to.

How long since a tune-up? Use a gage and check fuel pressure. Any applicable mil codes? You should be able to check those codes, yourself. To check mil codes, use a jumper wire between the A & B terminals at the data link connector. Turn key just till the dash lites come on, no further. The mil on the dash starts flashing, you count the flashes to get the codes. Your looking for two digit codes.

The picture is just to show location of pins A & b. All pins may not be applicable.