i have a auto mustang that i had parked for about 5 years. when i parked it 5 years ago it was working fine...but now afters 5 years i put a new fuel pump wires spark plugs ect...and it wont past 20 miles an hour...it starts to slug and sometimes back fires....


but i was thinking also because 3 years ago i tryed to started and i notice that some of my pullys were stuck ...could that struggle make the car go off timing?? i need help badly

 

did u drain the gas and put new in

 

yes i did

 

ok, are you getting spark on all plugs, could also be a bad injector

 

also check the timing

 

im goiung to try that....and another thing when is parked i rev it to about 3800 rpm and leave the pedal there the rpms drops with out me moving the padal

 

idk that could be a tps problem