Question about 1993 Toyota Pickup

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RUNNING RICH AND MISSES,IT SMOKES BLACK

MY 3.0 V6 3VZ-E TOYOTA TRK,I OVER HAUL ENGINE, WHEN I START ENGINE IT MISSES A LITTLE ,IT RUNNING TO RICH.SHOOT OUT BLACK SMOKE,IT IDLE'S HIGH AND LOW REPEATILY.WHO COULD HELP ME WITH SOME ANSWER'S.THE TIMING SETTING IS ON TIME.

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  • Richard Camp
    Richard Camp May 11, 2010

    Carburated or fuel injected? Is it controlled with a ECM (engine control module)? Black smoke of blue smoke? Was it a complete rebuild, new timing belt and all? Over head cams? Sounds like you have a carburator of fuel injection problem. Need more information to help. Good luck, RAC

  • Devon Sacco
    Devon Sacco May 11, 2010

    Sounds like what a vacuum leak would cause, or a vacuum line not hooked up properly. I would check all the vacuum lines. I'm sure there's a vacuum line on the fuel pressure regulator like my truck.

    Just one idea from me. :)

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  • Contributor
  • 17 Answers

Check your spark plug wires to make sure they are in the correct firing order, thats what it seems like the problem is

Posted on May 15, 2009

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Posted on Jan 02, 2017

SOURCE: 1994 Chevy Astrovan. v6 . Running very rich, black smoke.

If this van uses flow meter? If does, replace it.

Posted on Jul 09, 2009

stevenhurc
  • 450 Answers

SOURCE: it starts up good then in app. one min. the

sounds like ABS module fault
its getting signal thinking your driving and an ABS event is happening the ABS ECU comands engine ECU to reduce power(missfire) need to read codes from system to point you in right direction.
ABS sensor?
ABS ECU?
WIRING PROBLEM?
ENGINE ECU?

Posted on Jul 02, 2009

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1 Answer

Crank up runs good for couple mins then rough idle like its going to die then it will catch up dose it over and over smokes a little black souty looking but runs down the road good


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Rough idle, misses ,,Engine hesitates,poor acceleration


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I have a 1995 GMC sierra truck smoke when it stop at red light.


It probably smokes all the time , when moving you don't notice it > What color smoke ? White - coolant is getting in to the combustion camber , head gasket , intake manifold . Blue - oil is being burnt - rings , valve seals , Black - running rich , leaking fuel injectors . leaking fuel pressure regulator . Smokes from were , exhaust ? Engine bay etc....

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Idles rugh , blows black smoke misses


General info...
Running very rich. Too much gas. Is this a carburetter with automatic choke? Inline 6 cyl.?
Sorry I'm not familier with the toyota itself.
Check that choke pull off is operating after initial start.
Remove air filter. Look at top of carb throat for a disc flap that is closed when engine is off and cold.
As soon as you start engine it should open about one third right away, then slowly open further as it warms up. It may be a small vacuum device that does the initial pull off.
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1 Answer

My truck began running very rich little by little.


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

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1 Answer

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Jan 15, 2010 | 1983 Toyota Pickup

1 Answer

1986 toyota truck 22r fuel injected. runs to rich


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1 Answer

Engine running very rich


i had a honda prelude that did the same exact thing and it was unbeleivably it was the altanator!!

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