Question about 1991 Nissan Pickup
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Posted on Jan 02, 2017
This can be your Idle control valve, when you turn the air on it puts the engine under load and your computer will increase the idle automatically to prevent the engine from cutting out.
When you are standing still and the car is shaking, by touching the accelerator very softly does the shaking stop? If so check the idle control valve.
I hope this will help.
Posted on May 13, 2009
if you have a 1.6 engine the gap is .041 ths /(1.04mm) if you have a 2.0 engine the gap is .033 ths / (.84mm)
Posted on May 30, 2009
Try to disconnect MAF sensor(mass air flow sensor) or MAP sensor (manifold absolute pressure) , I don't know which one you have , (suppose to have either one) , when engine running and see if it becomes any better , if it did , then it's your problem.
Just remember one thing , if your check engine light is off now , it will be on after you disconnect any above mentioned components.
Easy to reset , disconnect battery for 30 sec.
Posted on May 27, 2010
SOURCE: we changed spark plugs &
Here is the firing order diagram for the 5.0 liter (305), 5.7 liter (350) and the 7.4 liter (454) V-8 engines (note position of locking latches/screws between the 3 and 6 and the 1 and 2 terminals on the distributor cap). Let me know if you need the 4.3 liter V-6 engine diagram (hopefully not in a 2500 series truck) or if you require any further assistance.
Posted on Nov 29, 2010
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