Hey guys this is one of my first post. But would like to say thank you, you guys have helped me so much on my car i have an 88 305 tpi and i had recently just got the check engine light to go off i had a heater valve that went bad but now i can't figure out why the car is sputtering and bucking. The car idles pretty well but not great and when trying to drive i get a hesitation and it is as if the car is not giving the full kick of what it has. i had recently cleaned the throttle body with a toothbrush ( i didn't remove the intake before cleaning kinda just a quick little spray and wipe then let it run). and it had worked good for about 2 weeks so i think that the possibilty is that the injectors are partially clogged but not sure cause i took it into the local shop and they said that didn't know what it is and they are idoits cause they charged me for 5 hours of dignostics and all the did was change the time which did nothing for me. so someone said that it could be a maf which i got a new one and nothing so please let me know what you guys think and any suggestions.

 

Have you looked into the fuel system yet?..fuel filter replaced..checked fuel pressure?.If so what was the pressure at?