Question about 1997 Nissan Pickup
Has any one checked the true temperature of your engine the fan might be coming on but at
the wrong temp you could have pre ignition and its firring ahead of time or the mas flow censor
is being restricted check the tubes and make sure they are clear but all and all it sounds to me its out of time electronically the pick up coil the crank censor or even a bad intake manifold gasket
leaking air when the intake heats up and expands allowing a pin hole
i hope this helps you
Posted on May 23, 2011
It is a common problem with Nissans that the harness and connectors lose their connectivity as they age-replace the harness and connector, worse case you might need to find something in a junkyard or make a connector out of pieces found there-use a ohm meter to check for broken wires, as that seems to be the issue. The reason it runs well when cold is the engine is run off of a set table of adjustments in open loop, when it goes into closed loop it has to get good input from these sensors and your MAF is not doing that-not due to a faulty sensor but because of an electrical problem, and the only solution is to find the fault or just replace the wiring/harness.
Posted on May 23, 2011
Get the crank position sensor also checked by the mechanic.If its shorting then it will also cause bucking. ---------- Check the fuel injectors and spark plugs too.also check that fuel tank is not very low.Also check to run the pick up with out maf sensor.Just see if its getting started or its just dies when you try to start without maf. ---- This should help.Thanks.Helpmech.
Posted on May 22, 2011
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Posted on Jan 02, 2017
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