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RX-7 2nd Gen Specific (1986-92) RX-7 1986-92 Discussion including performance modifications and technical support sections.

 
 
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Old 08-08-2010, 03:58 PM   #1
Rotary#10
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Default Failed smog Pretest.
Hey folks I have a bit of a problem now. I failed a smog pre-test On my 90 gtus n/a/ Everything else is fine but my NOx it thru the roof. Either I have alot of carbon build up or my engine is on its way out. Im thinking its the carbon build up. Whats recommended to clean it? Steam cleaning? Seafoam? The stuff Mazda sells for 50 bucks a bottle to clean the engine? Also the tech said my engine is ping-ing. Sigh*






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Currently running:
90 GTUs converted to S5 TurboII. Track car.
90 N/A GTUs..
Running project car

89 N/A GTUs in Black #2
10/6/18
Blown coolant seal undergoing rebuild and restomod.
Rotary#10 is offline   Reply With Quote
 

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