Omega Owners Forum

Omega Help Area => Omega General Help => Topic started by: Proz on 19 March 2009, 11:17:42

Title: Emissions Test
Post by: Proz on 19 March 2009, 11:17:42

Just had my emissions checked for my on going P0420 code

First test failed   >:( >:( >:(

Fast Idle 2500-3000 rpm

CO  0.301%    fail
HC  31 ppm    pass
Lambda 1.018 pass


Second test passed  :-/ :-/ :-/

Engine Speed 2750-3250
CO   0.289%   pass
HC    17 ppm  pass
Lambda  1.018 pass

Natural Idle
CO 0.184%  pass

Does anyone see anything here out of the norm or what to do next .
My cat will be covered by its warranty as its only 5-6 months ago it was changed for the same fault .

Cheers  :y

Title: Re: Emissions Test
Post by: Marks DTM Calib on 19 March 2009, 11:41:24

Cat failing....classic one.....it gets hot after the first hard run and passes the second time.

So, cheap pattern cat!

Title: Re: Emissions Test
Post by: Proz on 19 March 2009, 11:52:53

Quote

Cat failing....classic one.....it gets hot after the first hard run and passes the second time.

So, cheap pattern cat!

Mmm ok looks like another trip to Vx then .. it was them that fitted it  :y
Thanks

Title: Re: Emissions Test
Post by: NEP69 on 20 March 2009, 22:59:51

its a cheap replacement cat i've the same problem need a genuine one but they are expencive trying to find one myself at the right money

Title: Re: Emissions Test
Post by: Proz on 20 March 2009, 23:03:34

They quoted me £760 for a genuine one  :o

Title: Re: Emissions Test
Post by: Welung666 on 20 March 2009, 23:56:44

Sorry to latch on Proz but here are my readings from today's MOT fail...

1st Fast Idle Test
RPM 2815 Pass
CO 0.003 Pass
HC 34 Pass
Lambda 1.340 Fail

2nd Fast Idle Test
RPM 2920 Pass
CO 0.001 Pass
HC 6 Pass
Lambda 1.320 Fail

Natural Idle Test
RPM 808 (with missfire due to EML) Pass
CO 0.002 Pass


Any clues? I know I need to get the codes read though.

Title: Re: Emissions Test
Post by: Marks DTM Calib on 21 March 2009, 07:37:24

Quote

Sorry to latch on Proz but here are my readings from today's MOT fail...

1st Fast Idle Test
RPM 2815 Pass
CO 0.003 Pass
HC 34 Pass
Lambda 1.340 Fail

2nd Fast Idle Test
RPM 2920 Pass
CO 0.001 Pass
HC 6 Pass
Lambda 1.320 Fail

Natural Idle Test
RPM 808 (with missfire due to EML) Pass
CO 0.002 Pass


Any clues? I know I need to get the codes read though.

A few options

Engine not warm.

Coolant temp sensor playing up

Stat stuck open.

In a nut shell, its done well but, the ECU is not in closed loop mode and hence the lambda issue

Title: Re: Emissions Test
Post by: Welung666 on 21 March 2009, 10:56:59

Quote

Quote

Sorry to latch on Proz but here are my readings from today's MOT fail...

1st Fast Idle Test
RPM 2815 Pass
CO 0.003 Pass
HC 34 Pass
Lambda 1.340 Fail

2nd Fast Idle Test
RPM 2920 Pass
CO 0.001 Pass
HC 6 Pass
Lambda 1.320 Fail

Natural Idle Test
RPM 808 (with missfire due to EML) Pass
CO 0.002 Pass


Any clues? I know I need to get the codes read though.

A few options

Engine not warm.

Coolant temp sensor playing up

Stat stuck open.

In a nut shell, its done well but, the ECU is not in closed loop mode and hence the lambda issue

Cheers Mark, engine was plenty hot but I need to get the codes read. There could also be a very slight blow at the cats to manifold joint as well so I'm going to re-do that joint today.