B16 CRX Failed Emissions :(
Thread Starter
Honda-Tech Member
Joined: May 2004
Posts: 158
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From: Phoenix, AZ, USA
B16 CRX Failed Emissions :(
I just put a B16 in my 89 CRX Si and it failed its emissions check.
Test/allowed/actual
CO/15/64.30
HC/1.60/2.58
So far I have double checked the timing and am ordering a new set of O2 sensors. What else could be causing this, cat parhaps? ECU (PR3) is not throwing any codes. Thanks in advance for any advise!
Test/allowed/actual
CO/15/64.30
HC/1.60/2.58
So far I have double checked the timing and am ordering a new set of O2 sensors. What else could be causing this, cat parhaps? ECU (PR3) is not throwing any codes. Thanks in advance for any advise!
Thread Starter
Honda-Tech Member
Joined: May 2004
Posts: 158
Likes: 0
From: Phoenix, AZ, USA
Re: B16 CRX Failed Emissions :( (URNVS)
Update - Installed new O2 sensors, dist cap, rotor and spark plug wires and ALMOST passed;
Test/allowed/actual
CO/15/16.42
HC/1.60/1.44
NOX/2.50/1.34
Compression is 195/210/205/210, after new O2 sensors the car does idle a little high (was a little low before).
Some of the other threads about emissions mention adjusting the air/fuel mixture, how is this accomplished? Also, I was wondering what the numbers for a properly running 1st gen B16 are supposed to look like? Any other suggestions?
Test/allowed/actual
CO/15/16.42
HC/1.60/1.44
NOX/2.50/1.34
Compression is 195/210/205/210, after new O2 sensors the car does idle a little high (was a little low before).
Some of the other threads about emissions mention adjusting the air/fuel mixture, how is this accomplished? Also, I was wondering what the numbers for a properly running 1st gen B16 are supposed to look like? Any other suggestions?
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T_Rex
Honda CRX / EF Civic (1988 - 1991)
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May 13, 2003 07:09 PM
