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NCT fail: Lambda 1.05

rightyabe · 2011-05-27 09:24:58

Its a 99 civic, passed on all apart the Lambda was 1.05 it should be between 0.97-1.03 Engine Temp---80 degrees Low Idle (750rpm) C0 = 0.07 (0.50 allowed) PASS HC = 33ppm (0ppm allowed) N/A Lambda 1.05 (0.97-1.03 allowed) High Idle (2940rpm) C0 = 0.16 (0.30 allowed) PASS HC = 13ppm (200ppm allowed) PASS Having read threads…

27-05-2011 9:24am

#1

rightyabe

Registered Users, Registered Users 2 Posts: 812 ✭✭✭

Join Date: July 2010

Posts: 728

Its a 99 civic, passed on all apart the Lambda was 1.05 it should be between 0.97-1.03

Engine Temp---80 degrees

Low Idle (750rpm) C0 = 0.07 (0.50 allowed) PASS
HC = 33ppm (0ppm allowed) N/A

Lambda 1.05 (0.97-1.03 allowed)

High Idle (2940rpm) C0 = 0.16 (0.30 allowed) PASS
HC = 13ppm (200ppm allowed) PASS

Having read threads on here it seems that my exhaust must be leaking, and the NCT man said the same.

1. Any tips on finding the holes/cracks, should I let the car go cold, block the exhaust and wait to see if it conks out? whats the best way to find smoke leaving the exhaust? a torch?

2. What exhaust putty/fillers is the best for DIY?

3. When its tested again do they test for C0 and HC as well as lambda, so could I fail it on other areas of the emmisions test or will they just test me for lambda?

1

Comments

#2 15-07-2011 5:19pm

peckmyster

Registered Users, Registered Users 2 Posts: 12 ✭

Join Date: April 2009

Posts: 7

Failed today for same reason, got a lambda reading of 1.04

0