TwinTurbo.NET: Nissan 300ZX forum - Personally, I woul dhave replaced the plugs with
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Subject Personally, I woul dhave replaced the plugs with
     
Posted by Audioquest on June 01, 2008 at 9:54 AM
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In Reply To Serious Problem 90 Z32 NA. Need help please posted by rusf77 on June 01, 2008 at 04:16 AM
     
Message the factory NGK Platinums. What was the plug # on the Iridium you used? Most plugs do not have the right nose length and therefore it doesn't sit in the combustion chamber properly, nor always the right heat range.
On the other issue, I say pull all the connectors with the spring clip and clean the terminals. They have to be 100% clean and make good contact for the engine to run properly, especially the Coolant Temp Sensor, CAS, PTU, MAF and AAC.

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