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1989 Nissan Hardbody King Cab 2WD Base 5-Spd

1989 Nissan Hardbody King Cab 2WD
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March 9, 2012, 1:34 pm

AutomotiveForums M

Question: 89 nissan wont start or run

my truck wont start or run it turns over i have spark and i have fuel ive taken the air filer out ive check the timing by checking the notchs on the outter pulley of the crank and it is on iflock the line off to the tbi and let it run out of fuel it seems to wanna start but dont and if i unlock the line it starts to wanna start but dont and i have to hold the pedal to the floor to get it to do this then it seems almost to flood out im running out of ideas any suggestions

March 13, 2012, 6:03 pm

Ron W
Expert Mechanic

When you say you have fuel, does that mean fuel pressure or that the injectors are firing. If it is pressure, check your RPM signal (crank sensor) as the injector won't fire (even with fuel pressure) if it doesn't get an RPM signal. If the injectors fire, check your fuel filter and pressure. You may have a pump or filter restriction issue.

I would also do a compression check on it just to eliminate a mechanical issue.

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