Question about 1986 Nissan Pickup 4WD 1986

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My truck began running very rich little by little.

My truck (1986.5 Nissan D21 4x4 VG30 V6 manual trans) began running very rich little by little. If the truck is cold or has not been driven for a long time it runs great. Once I stop the truck for a little while and go to start it, it will start right up but then begins running very rich and idles rough. ECm is throwing trouble coded 31 and 24. I replaced the O2 sensor and Mass air flow sensor about 3 years ago. I cannot seen to get the ECM to go to mode #3. it just starts producing codes listed above. AC currently does not have any refridgerant. have any advice?

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FROM WHAT I FOUND OUT ON MY SAME TRK ONLY 94' IS THE DIAPHRAM ON THE FUEL PRESSURE REGUALTOR IS SLUGGISH OR BLOWN. DISCONNECTING THE VACCUM LINE AND PLUGGING THE MANIFORD PORT HAS HELPED UNTIL I AM ABLE TO AFFORD THE REGULATOR. TO HELP CLEAN THE OXY SENSOR, SPEED UP THE IDLE AND DISSCONNECT THE BRAKE BOOSTER VACCUM LINE AT THE ENGINE. THE FRESH AIR WILL SOMEWHAT HELP CLEAN THE SENSOR IF IT IS ABLE TO BE HELPED. I AM TOLD THAT THE OXY SENSOR ON THESE MODELS IS CRIDICAL. JACK

Posted on Jun 14, 2010

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Related Questions:

1 Answer

Break and battery light stays on all the time


sold all over earth, what country> we cant guess this....
don't break the brakes....!!!
my guess, you meant the
brake lamps are on keys in pocket. and the battery lamp is dash(charge) glows, keys in pocket. right?
and battery cable kills all this illegal states above. sure.

86 nissan PU.
720 PU>? Datsun>?
or D21 Nissan ( 1986 Dat-SUNS became NISSANS. in USA)
Model years 1986.5 (second half) and later were called Nissan Hardbody Trucks, chassis code D21.

D21 are called HARD BODY trucks. mid year changes.
so???? which is yours.

as you might not ,know , the models are wired diffrent by different exact models and country.
long ago , i had the 86 with the VG30 V6...

so i will roll the dice and answer for
D21
ok?

things off stay on, 101
bad wiring, hacked in wiring, radios,alarms and other things.
all can cause this..... its old and is common on old cars.
but if wiring is not hacked, (id see that in 10seconds in person)
no hacks.
gas engine car not diesel.
USA 86 body
brakes
Im looking now at the schematic and this car has a hot at all times
brake lamp switch. (foot pedal switch)
SO only a bad switch can cause this.... period
now the dash charge (battery ) light stuck on.


my online source ,has the alternator system missing.
so can not comment.
the lamp gets its power from the key switch
if the key switch fails , all warning lanps glow not just the
charge.(battery)
so its not that
my best guess is wiring errors, that put power the the cluster
key off. id bet that is it .

wiring errors to the ignition output is side, key switched power is failing.




Jul 14, 2014 | 1986 Nissan Pickup 4WD 1986

1 Answer

1986 nissan pick running rough no horsepower going up hills smells like its burning rich


try removing your catalytic converter seems like its plugged enough to slow you down.hope this helps you

Feb 07, 2010 | 1986 Nissan Pickup 4WD 1986

1 Answer

What kind of trannys interchange with a nissan maxima with a v6 3000 engine


there is no interchangable trans for your model year maxima. you can install only maxima trans build in your model years. I think that was 1991-1994. also the engine configuration has to be the same as yours. nissan made your model maxima with 2 different engines. one model had VG30 engine and the other had VE30. two different engine models. you need to match it with yours.

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1 Answer

Will a v6 fit in my 89' nissan?


yes
you can get these with the VG30 V6 in them

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1 Answer

CHANGING THE FUEL PUMP ON A 1986.5 NISSAN HARDBODY EXT CAB 4X4


lol good ? look at your tank staps compared too the bed bolts might be cheaper getting new bolts rather then fuel straps, the pumps from a 2 or 4 wheel might not make a difference *** lond as same engine.

May 10, 2009 | 1986 Nissan Pickup 4WD 1986

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