300zxgirl

Hi, I have an 87 300zx N/T and I have some emissions problems. I pre-tested ( I had a feeling it would fail) it pre-tested as a gross polluter(I live in CA.) the HC failed at idle max is 112, it measured at 248. NO failed also at idle, max is 778 it measured at 2392. At 25 MPH everything passed. I changed gas cap, and did spark plugs, wires, rotor and cap. I haven't taken it back to test yet, I was wondering if anyone has any other suggestions that may help. I LOVE my car, and wanna get it back on the road, I miss driving it, it's been sitting in my driveway for 4 months.... ANY help would be greatly appreciated!
THNX...

Hendrix

Congradulations on finding NF!! Hopefully, you can find the answers that you need.

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Hendrix
"Have you heard of the chain of command? It's the chain I beat you with until you realize that I'm in command" - Firefly, Jayne. Affirmative Action MoFo
Signature edited to please Scoot

Radioaktiv

might try running fuel system cleaner thru it
and maybe get a new catalytic convertor

welcome to NF

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champagne taste on a beer budget

Scott

I'm going to move your post to the Z31 section. Someone there will probably be able to offer a suggestion.

Zen31ZR

Lets see , HC is too rich , and NOx possibly means it's running too warm. O2 sensor and thermostat......it may just be that simple.

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1992 Yamaha FZR 1000. 145 Hp, all stock..