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Just bought a 1983 280ZX (not turbo) and am having trouble getting it to pass the Virginia emissions inspection. The NO is within limits, but the HC and CO are not. I've changed the spark plug wires, plugs, cap/rotor, and the exhaust gas sensor; I also checked the timing and it was set at 20 BTDC, but the Haynes manual says it should be 8 +/- 2; so I set it to 10. The sticker under the hood was missing, so I don't know what the specs should be.
- Anybody have any ideas on what to check first?
- What should be the timing and idle RPM specs?
Any help would be greatly appreciated!
- Anybody have any ideas on what to check first?
- What should be the timing and idle RPM specs?
Any help would be greatly appreciated!