Help Needed. Smog Test in Orange County - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Scrubbin · 09-21-2011, 01:32 PM

Got a Prelim Smog test done on my s14 for California.

I am from Washington, Now in Aliso Viejo.
The only Engine Mods are.

Injen Intake
Tanabe CarExhaust

My readings are at "Idle" are.

Gas
HC......PPM: 1085
CO........%: 3.24
CO2......%: 9.6
O2........%: 2.6
NO(X)...PPM: 224
P.E.F...: 0.474

What should i do to fix it?

PM me or reply to the Thread.

Thank you!!!!

rcdad123 · 09-21-2011, 03:02 PM

what gasses failed? show us the max allowed for each gasses.

RB240zDET · 09-21-2011, 06:22 PM

You should move away from Cali! lol. On another note like the previous person said what gasses failed and what are the max allowed in the smog test? I want to say its the exhaust. My brother had to swap a stock exhaust on his car for it to pass smog, then once he passed he swapped his exhaust back on. I honestly do not know how you guys do it out there with how strict Cali is...

*!Zar!* · 09-22-2011, 04:19 PM

Exhaust has nothing to do with smog.

Pacman · 09-24-2011, 01:28 AM

He failed on HydroCarbons. The engine is running very rich and not efficient at all (CO2 is WAY down, should be around 12%-higher for that engine). I'd start looking for a lazy O2 sensor, or a lean misfire (making the engine not burn the raw fuel, IE hydrocarbons). You'll need a scope (optimally) to check the O2 sensor for being stuck on the rich side. If you're not familiar with diagnosing emissions related components, take it to a shop who knows what they're doing. Emissions can be a PITA if you're unsure, and can be a lot of wasted money at the 'throw this part in' mentality.

Scrubbin · 10-04-2011, 01:48 PM

Ended up selling it, Thanks for the help though haha

09-21-2011, 01:32 PM	#1
Scrubbin Leaky Injector Join Date: Jan 2011 Location: Irvine, CA Age: 30 Posts: 54 Trader Rating: (0) Feedback Score: 0 reviews	Help Needed. Smog Test in Orange County Got a Prelim Smog test done on my s14 for California. I am from Washington, Now in Aliso Viejo. The only Engine Mods are. Injen Intake Tanabe CarExhaust My readings are at "Idle" are. Gas HC......PPM: 1085 CO........%: 3.24 CO2......%: 9.6 O2........%: 2.6 NO(X)...PPM: 224 P.E.F...: 0.474 What should i do to fix it? PM me or reply to the Thread. Thank you!!!!

09-22-2011, 04:19 PM	#4
!Zar! Premium Member Join Date: Nov 2004 Location: North Korea Posts: 14,576 Trader Rating: (27) Feedback Score: 27 reviews	Exhaust has nothing to do with smog. __________________

09-24-2011, 01:28 AM	#5
Pacman Zilvia FREAK! Join Date: Sep 2003 Location: Ohio Age: 33 Posts: 1,147 Trader Rating: (1) Feedback Score: 1 reviews	He failed on HydroCarbons. The engine is running very rich and not efficient at all (CO2 is WAY down, should be around 12%-higher for that engine). I'd start looking for a lazy O2 sensor, or a lean misfire (making the engine not burn the raw fuel, IE hydrocarbons). You'll need a scope (optimally) to check the O2 sensor for being stuck on the rich side. If you're not familiar with diagnosing emissions related components, take it to a shop who knows what they're doing. Emissions can be a PITA if you're unsure, and can be a lot of wasted money at the 'throw this part in' mentality. __________________ In search of a Zenki S14 right side (passenger) fender and straight hood that are rust free.

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09-21-2011, 03:02 PM	#2
rcdad123 Zilvia Addict Join Date: Jul 2011 Location: san diego Posts: 639 Trader Rating: (0) Feedback Score: 0 reviews	what gasses failed? show us the max allowed for each gasses.

09-21-2011, 06:22 PM	#3
RB240zDET Zilvia Member Join Date: Aug 2011 Location: ATL Posts: 157 Trader Rating: (5) Feedback Score: 5 reviews	You should move away from Cali! lol. On another note like the previous person said what gasses failed and what are the max allowed in the smog test? I want to say its the exhaust. My brother had to swap a stock exhaust on his car for it to pass smog, then once he passed he swapped his exhaust back on. I honestly do not know how you guys do it out there with how strict Cali is...

10-04-2011, 01:48 PM	#6
Scrubbin Leaky Injector Join Date: Jan 2011 Location: Irvine, CA Age: 30 Posts: 54 Trader Rating: (0) Feedback Score: 0 reviews	Ended up selling it, Thanks for the help though haha