smoking injector...

Nissan 300ZX technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting.
DevZX
Posts: 81
Joined: Mon Apr 09, 2012 9:17 pm
Car: 1990 300zx twin turbo
1995 miata mx-5
1990 miata mx-5

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i just had 550cc jecs injectors installed and now the idle goes from 500-800 up and down. and there is alot of smoke coming from the driversside exhaust and the car doesnt seem as fast. could the whole injector be bad? or is it just the o ring? thanks guys


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Ziggy1621
Posts: 1137
Joined: Sun Jun 10, 2012 5:57 pm
Car: '90 Z32 TT (Shibui)
'90 Z32 2+0 NA
'68 311 Roadster
2004 Rx330
2011 BMW 550i (TT)
Location: Cocoa, Florida
Contact:

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This needs to be in the tech section ;) I'd check the orings first. What color is the smoke? Blue is oil, white is coolant or fuel. So if it white and wasn't smoking before, then I would check your orings. Also, did you have your ecu chipped? If not, then the ecu is throwing 50% more fuel into the system than it thinks it is

DevZX
Posts: 81
Joined: Mon Apr 09, 2012 9:17 pm
Car: 1990 300zx twin turbo
1995 miata mx-5
1990 miata mx-5

Post

Yes it is chipped and i see white smoke coming out of the drivers side and it smells like smoke and alittle bit of fuel. So its the oring?

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Ziggy1621
Posts: 1137
Joined: Sun Jun 10, 2012 5:57 pm
Car: '90 Z32 TT (Shibui)
'90 Z32 2+0 NA
'68 311 Roadster
2004 Rx330
2011 BMW 550i (TT)
Location: Cocoa, Florida
Contact:

Post

That would be my guess. Got one pinched.


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