I have a 91 rs that had a 305 TBI and I swapped a 305 TPI out of an 88 iroc into it but for some reason it's not running. I had it running great for afew days then it just stalled out and hasn't started since. I have fuel and spark so I'm pretty much lost as far as what could be keeping it from starting. It tries to crank over but it just won't catch. If anyone has any ideas please let me know.

 

What is your fuel pressure?

Any chance the distributor slipped?

 

a

 

Since I posted this thread I checked my fuel pressure and it's REALLY low. It was fine before this started happening (between 40 and 45 psi) but now it's only going up to about 7 psi. It isn't holding pressure either. After i turn the key it'll hold 7 psi till the fuel pump stops running. I heard it could be caused by an injector stuck open but I haven't had the time to check into it. If anyone has anything to add to this please let me know. Thanks again.