high idle, white smoke out exhaust

Nissan 300ZX technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting.
tjv24
Posts: 4
Joined: Wed Apr 05, 2017 4:04 pm
Car: 1990 300zx na

Post

i found a bad injector on my z32 and decided to pull the plenum and replace it, while i was at it i cleaned some connectors. put everything back together, all vacuum lines are in the right locations, car has no codes. it fires right up but idles at 2,000 rpm and emits alot of white smoke. any ideas of what the cause is?


tjv24
Posts: 4
Joined: Wed Apr 05, 2017 4:04 pm
Car: 1990 300zx na

Post

Could this be cause by a pinch in the o-ring for the injector, maybe when I installed it. Any advise would help a lot, thanks

tjv24
Posts: 4
Joined: Wed Apr 05, 2017 4:04 pm
Car: 1990 300zx na

Post

Ohm the injectors now one is 29, but wouldn't high resistance cause that cylinder to run lean, unless it's spreading at the wrong time? Also one was 14.1.

Please any help or ideas will help out tremendously.

JJT211
Posts: 16
Joined: Fri Jul 22, 2016 4:27 pm
Car: 1990 300zx TT
Location: New Orleans, LA

Post

IS that 29 ohm injector new?

tjv24
Posts: 4
Joined: Wed Apr 05, 2017 4:04 pm
Car: 1990 300zx na

Post

No the 29 ohm injector is old, but you would think high resistance in the injector coil would cause the car to run lean, unless it could be spraying at the wrong time...


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