Question about 1990 Nissan 300ZX
I have a 1990 zx with the vg30dett and cylinder 4 isnt firing..have sufficiant spark new iridium plugs replaced coilpack.. volts at coilpack and injector..put a stethescope on the injector and clicking well..took the spark plug out and run the engine at first appeared the chamber was flooded with fuel but cleared it out and by the sounds of things good compression although i will have to replace the valve seals at some stage as it does smoke quite profussely on warmup out of the left bank..also the plug had alot of oil on it..shes been a real pig on gas lately as well (understatement!!)..traced and retightend all links from tank to regs but cant seem to get fueltight pressure..any thaughts??
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Posted on Jan 02, 2017
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