Question about 1991 Nissan 300ZX
Ive got a rb26dett engine that shakes on idle, and ive been told by a number of people that im misfiring. I unplugged the coilpacks one at a time and the engine responded by shuddering untill i unplugged the coil on the cylinder closest to the firewall. The engine ran no differently if that coil was disconnected or not. I swapped it with a different coil and it didnt solve it, so the coils are good. I checked the wiring harness and grounds, they seemed ok as well. This has become quite frustrating and i don't know where else to turn, any help would be appreciated
thanks in advance.
1991 r32 gtr rb26dett 145,000 kms
Put a vacuum gauge on the engine,the needle should fluctuate back and forth, take a timing light and instead of putting on the number one plug put it on the plug wire with the problem.point the light at the gauge if the needle looks like it is steady you have a problem with one of the valves or the cam shaft.
Posted on Apr 22, 2009
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Posted on Jan 02, 2017
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