Failed Smog due to NO (PPM)
Thread Starter
Full Member
Joined: Dec 2010
Posts: 52
Likes: 1
From: SoCal
Failed Smog due to NO (PPM)
Just bought the car (1995 Rx7), I will put some time into a proper introduction in the new members forum asap.
Tried to Smog the car today and it failed with a 15mph NO measure of 1017 PPM vs 704 PPM Max. Tech speculates it could be a faulty o2 sensor causing car to run lean.
Records show the car got a full tune up at Tri-Point Engineering in 12/11 with 78,348 miles which included plugs and o2 sensor followed by a Smog Pass. Back then it measured 670 PPM at 15mph.
Today, almost 3 years later but with only 300 additional miles it's a very different story. Can the o2 sensor fail after so few miles but that long just sitting around? Looks like an expensive unit that was used at tune-up.
I'm about to buy an NGK unit for like $25 but thought I'd check with the brain trust here before placing the order.
Thanks much.
L T
Tried to Smog the car today and it failed with a 15mph NO measure of 1017 PPM vs 704 PPM Max. Tech speculates it could be a faulty o2 sensor causing car to run lean.
Records show the car got a full tune up at Tri-Point Engineering in 12/11 with 78,348 miles which included plugs and o2 sensor followed by a Smog Pass. Back then it measured 670 PPM at 15mph.
Today, almost 3 years later but with only 300 additional miles it's a very different story. Can the o2 sensor fail after so few miles but that long just sitting around? Looks like an expensive unit that was used at tune-up.
I'm about to buy an NGK unit for like $25 but thought I'd check with the brain trust here before placing the order.
Thanks much.
L T
Thread
Thread Starter
Forum
Replies
Last Post
Turblown
Vendor Classifieds
12
Oct 17, 2020 03:25 PM
NickNac113
1st Generation Specific (1979-1985)
13
Oct 1, 2015 09:25 PM
pfsantos
2nd Generation Specific (1986-1992)
1
Sep 30, 2015 01:29 PM