NEW- distributor, TPS sensor, plugs wires, air filter, fuel filter, and cleaners run through motor. when heated up from short drive a heated metal popping sound acures
Sounds like the cat converter is plugged up
SOURCE: engine bk firering & lose of compression.
Backfiring after warming up can be from many things.
One that comes to mind is carbon deposits on valves, causing them to not close properly. The carbon deposits would also heat up and then ignite air/fuel mixtures before the spark plug can fire.
Or you would have hot exhaust gasses leaking back into the cylinder on intake and that would ignite the fuel.
Tac gauge fluctuating, and engine running rough on acceleration could be a vacuum leak, do you hear a hissing sound when the engine is running? listen closely under the hood. If you have a vacuum leak you would lose power and your RPM would fluctuate oddly. As for the backfire however, there are probably more than just one problem. Its hard to say for sure.
So please, more details, noises you hear, when exactly everything happens etc.
What speed and RPM the engine begins to bog down at, does it stall? What range is ur tac fluctuating at? anything you can think of, throw it on there.
Hope this helps you
SOURCE: Nissan 300ZX shakes
where can I find out how to change plugs and wires of my 87 nissan 300zx turbo? I have never worked on a car and would like to try.l know nothing.
SOURCE: while driving on the freeway my engine just
This usually indicates a broken timing belt/chain. This can be verified by doing a compression test. You can rent a tester from most auto parts stores. Disconnect the distriutor, remove all spark plugs. Install the tester in one spark plug hole, hold the throttle wide open, then crank the engine for 5 seconds. You should get around 180 psi. Anything lower then 150 and I would suspect the timing belt/chain.
SOURCE: My 1997 Nissan King Cab pickup wont run!
i have had the same problem and it was my mass air flow sensor. and dont by the whole kit from the deal cause it was like 500 buck and you can order one from ebay for like 70
SOURCE: replaced mass air flow sensor, fuel filter, air
check timing make sure it;s ok . second check your exhaust system if it;s close , start accilerate for 3 min. then look all exhaust pipe (silencer) if there is difrent coler . check Oxgen sensor it;s ok .
and if you have no enough fuel presure try close the return line temporary . maf, sensor only when there it is highand low accilerator.
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PCV Valve
Plugged or damaged pcv valve.
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Air Filter
Restricted or clogged air filter.
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Catalytic Converter
Clogged, damaged, defective or faulty catalytic converter.
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Automatic Transmission
Improperly adjusted kickdown cable adjustment or internal transmission problems.
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Fuel Pump
Improperly functioning fuel pump or circuits.
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MAP Sensor
Improperly connected or faulty m.a.p. sensor.
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Mass Air Flow Sensor
Improperly connected or faulty mass air flow sensor.
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Throttle Position Sensor
Faulty throttle position sensor or throttle position sensor circuit.
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Timing Specification
Incorrectly adjusted engine timing.
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Fuel System Pressure
Incorrect fuel pressure being delivered to carburetor or fuel injection system.
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