1990 240 sx

Asked by onebombshell Apr 30, 2013 at 03:35 PM about the 1990 Nissan 240SX

Question type: Maintenance & Repair

engine missing. replaced ecu, injectors, fuel filter, new plugs and wires, tested wiring.all good. #3 injector miss fire.test reads everything is firing correctly but it is not.

3 Answers

migration_judge_roy answered 11 years ago

does it crank evenly? as unknown we should verify that the timing chain is in the correct location, this one has a distributor? if it does pull the cap, see if the rotor is all that, cracks show up as carbon traces and the little pushbutton in the middle should yield a bit but not fall out- the basics please air, fuel, spark, timing----kinda drivin' this burro backwards, eh?

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migration_judge_roy answered 11 years ago

the computer will know if your battery is old thru mis-baving badly, seen this on Datsun's before~Get a fresh battery 1990 is more than ten years old=kaput---get a brand new one reputable brand (not walmart)---the ecu will see proper voltage after cleaning off the ground terminals black wire to chassis and the 1/0 battery cable to the engine block as well. It is through reliable solid power (who's connections are clean for the job) that we can expect the computer to start co- operating with us~

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