1992 hardbody lossing power

187,187 MILES
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CHOLLINGSHED
  • MEMBER
  • 4 POSTS
1992 nissan hardbody lossing power.
When i go to start the p/u it will idle rough,to prevent it from dieing i have to throttle it up to get past it bogging once it clears the bogging i can let off the throttle and it will idle fine for a period of a few minutes and will bog again. Then when i go to drive down the street it will bog a lil bit if im easy with it and then when i floor it it acts like its flooding(bogg really bad). Ive been reading up on it and i found that if when i goto start it if i un plug my mass air flow sensor it will start clean but idle a lil high will have very lil power if i attempt to drive on it then when i plug it back in it will runn great till i let it idle for to long or if i shut down and restart the p/u.What would cause this is it my mass airflow failing ir is it some thing more or can i clean it?
Aug 3, 2011 at 5:58 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
Could be caused by one of the following below

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft position sensor
Knock sensor
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.

Note:If it doesn't apply disregard it and keep testing.
Sep 22, 2011 at 12:37 AM
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