Question about 1983 Nissan 280ZX

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What is the adjustment procedure of the air flow meter of my 1979 280 zx?

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1979?' isnt this a carb model??

Posted on Jul 17, 2010

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Posted on Jan 02, 2017

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You are not actually adjusting the air flow, just the fuel distributor's response to air flow. This video walks you through how to do that: Duty cycle measurement on Mercedes W124 diagnostic socket faulty control...

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1983 nissan 280 zx car back fires when cold


Sounds like you could have an aux air regulator valve, that is not working when it will not work; there is no fast idle cold. Should be around 1500 rpm cold, the car will stall out and pop through the intake when bad. You have a digital volt meter to do some testing with to make sure the mass air flow is working correctly.

Also, c
heck the plugs for how they're burning, check the air filter for good flow, do a compression test and judge from there. Intake backfire is usually caused by running lean or improper timing.

For the 79 model zx, ignition timing was 10 degrees BTDC @ 700rpm
For 80 and up zx, non turbo - 8 degrees BTDC +- 2 degrees @ 700rpm
turbo - 20 degrees BTDC +- 3 degrees @ 700 rpm

Also done with distributor vacuum advance hose removed and plugged.
NOTE:
* BTDC = Before Top Dead Center
* + - = Plus or minus
Hope thos helps; keep us updated.

Aug 02, 2011 | 1983 Nissan 280ZX

1 Answer

Air flow meter problems


Check your air filter first, ensure it is clean, then check your MAF(Mass Air Flow Sensor) If you are not familiar with vehicles I suggest taking it out and replacing it, it should be in your intake box or located close by it. It is typically a round sensor that reads the air flow and adjusts fuel.

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Mercedes Benz C-class 180C, the car stops engine each time I break, I have removed the switch connection to the air flow meter and this stops, what is the implication of removing the switch and driving car...


don't drive the car without air flow meter connected because the air flow meter signal very impotent for fuel mixture in combustion chamber, in your car faulty air flow meter replace air flow meter, is this information helped you?

Mar 24, 2010 | 1998 Mercedes-Benz C-Class

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Air flow meter sensor.


the air flow meter adjust the mixture ( fuel /Air) to the intake . as the engine RPM increase if there is a irregularity when the throtle is increased then yes that would solve the problem . make sure first there are no vacume leaks this will make the same effect.

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Need to increase the idle on a 1987 Nissan 300 zx non turbo. where is the "idle screw" or equivalent


Remove plug from air flow meter(air filter box) and adjust there. It will be on the top.

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1 Answer

Need instructions on how to change it


please forgive me if the images do not show up. please do not forge to rate and comment about your experience with fixya today. Removal & Installation
  1. Disconnect the negative battery cable.
  2. Loosen the hose band and remove the intake hose.
89544p13.gif To remove the mass air flow sensor, first detach its wire harness connection
89544p14.gif Next, remove the sensor-to-air cleaner housing retaining bolts and loosen the air intake pipe clamp
89544p15.gif Pull the sensor out of the air cleaner housing
89544p16.gif Inspect the air flow sensor sealing ring and replace as needed
  1. Remove the airflow meter attaching bolts and detach the wire harness connector.
  2. Remove the airflow meter from the air cleaner housing.
  3. Installation is the reverse order of the removal procedure.

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Idle and Power Where is the fuel filter?


Fuel filter is inside the gas tank and its built into the fuel pump housing. You need to remove the back seat and get into the tank via access hole under the seat. Than you need to "split" the fuel pump assembly open and get the filter out. Reverse procedure to assemble. Those filters are rated for 105k miles. My 00 Maxima has 167K on it and it runs just fine with the original. As far as the air flow meter , its a pretty common part that fails and that's why 00 Max air flow meter costs only $100 and all others $500 or more. If you replace an air flow meter, make sure that you use a "NISSAN" air filter or YOU WILL BE replacing the air flow meter AGAIN. Also with the new air flow meter the cars ECM/Computer needs to be reprogrammed. As far as plenum gaskets leaking?? unless someone had it apart and didnt put it back together the right way, its "VERY UNLIKELY" for those gaskets to be bad. Totally bullet proof.

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87 RX 7


rx7`s should rev to 3000 when started cold then it should settle to 750 to 1000 after about 30 to 60 seconds.
mine suffers a similar problem. so far I have been told various answers, mostly involving the bac valve, lambda sensor, air flow meter, etc. try starting of by adjusting the idle adjust screw (on top of the throttle body under plastic cover) this may be all it is. I have not had time to do mine. Its been fine otherwise and idles fine after a few minutes. mine is non turbo 87.

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