Need a little help to get car running again

[Matt_H]

First off its a '89 sunbird just a 4 cylinder deal nothing special just get to work and party wheels. Anyways The fuel pump went on my car or at least thats what I was told cause there wasn't 60 psi so I put in a new fuel pump but you still need to give the car 1/2-full throttle for it to run, and if you take off the gas then it will die. Now as I found out 10 mins ago my dad thought it was my timing so he played around with it. What do you think timing or is it still a fuel probalem maybe my fuel filter?. Any help would be great thanks.
Matt

 

[Rooster]

Start with the fuel filter. Then check your exhaust flow, making sure the catalytic converter isn't clogged.

Let us know what you find.

Good luck.

 

[Zerotact]

I am by no means an expert, but you might want to find how to test your throttle position sensor, and your map sensor. Like I said "test it" don't just replace it and get mad it that doesn't work. I am sure with a little searching you can find how to test those sensors with a multimeter

 

[Highbeam]

There wasn't 60 psi, so was there like 5? I would address this first and a fuel filter is maintenance that should be done anyway. Had it been sitting long? maybe a mouse nest in the muffler? You don't need to regularly adjust the timing as unlike in the old days there are no points to wear out.

 

[jaction125]

Fuel Injector?