Topic: lamba or cat failure (update) (Read 612 times)

mantagte · « **on:** 20 March 2010, 12:39:22 »

replaced the lambda sensor with a new one from vauxhall
car was back in for retest this morning
result FAILED

fast idle
co was 0.53 now 0.61
lambda was 1.050 now 1.038
hc was 20 now 88

second fast idle
co was 0.57 now 0.73
hc was 1 now 101

natural idle test
co was 0.36 now 0.49

guess its the cat then
lambda was 1.049 now 1.035

cem_devecioglu · « **Reply #1 on:** 20 March 2010, 17:14:07 »

mate, I think trial error will be an expensive way :-/

as I mentioned before I still think you have problem with ignition and/or combustion in some cylinders are not complete.. and also a compression test may give better ideas imo.. :-/

mantagte · « **Reply #2 on:** 20 March 2010, 19:00:23 »

thanks Cem
will check the compressions in the morning
the car has had new plugs leads coil pack
a replacement maf as there was a code p0100 relating to that put replacement maf on cleared code
no codes have returned

cem_devecioglu · « **Reply #3 on:** 20 March 2010, 19:27:09 »

if those tests dont give a clue including the compression test , check coolant temperature sensor.. and ideas finished

rhinofender · « **Reply #4 on:** 27 March 2010, 17:23:41 »

We had the same problem with our mercedes, it was the air mass sensor

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Author Topic: lamba or cat failure (update) (Read 612 times)

mantagte

lamba or cat failure (update)

cem_devecioglu

Re: lamba or cat failure (update)

mantagte

Re: lamba or cat failure (update)

cem_devecioglu

Re: lamba or cat failure (update)

rhinofender

Re: lamba or cat failure (update)