emissions help!!


Dicko09

Dicko09

Dicko09
Joined
Dec 1, 2009
Messages
204
sent my ek9 for the nct recently and it failed on emissions! i hav put a standard ctr exhaust and cat on it but it stil failed! its mapped on an apexi power fc....could this be the problem??
 
God, emissions could be anything!
what condition was the cat you replaced the original one with?
it would be unlucky but dont rule out that being screwed aswell
 
CR1S said:
God, emissions could be anything!
what condition was the cat you replaced the original one with?
it would be unlucky but dont rule out that being screwed aswell
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as far as i know the cat is perfect.....it was used recently for a friend and it passed no problem
 
More than likely 02 feedback is turned off and its failing on lambda reading. Post nct results and I will confirm.
 
NCT results

low idle(960 rpm)
CO 0.87 vol %
HC 241 ppm


High idle(3000rpm)
lambda 0.97
CO 1.01 vol %
HC 79ppm
 
Your just on the limit with lambda reading. CO is way over allowed level. What condition is the cat in?
 
Im having the same ****ing problem with my emissions. Im running a b16a2 bottom end with dc2 pistons, ek9 head, inlet, fuel rail. Dc2 ecu and throttle body, 2.2 injectors and a decat. My mate has ran a through few mot like this and passed, yet when i go to mot, the allowed limit is 3.50 and my emissions are up to 7.9. They where 8.2. Ive got a lend of a cat but its surely not going to make that much difference. We did try another 02 sensor and its bought it down a bit but im wondering do i need a new one! Also changed the ecu to a vti one for mot.
 
Jack-Civic said:
Im having the same ****ing problem with my emissions. Im running a b16a2 bottom end with dc2 pistons, ek9 head, inlet, fuel rail. Dc2 ecu and throttle body, 2.2 injectors and a decat. My mate has ran a through few mot like this and passed, yet when i go to mot, the allowed limit is 3.50 and my emissions are up to 7.9. They where 8.2. Ive got a lend of a cat but its surely not going to make that much difference. We did try another 02 sensor and its bought it down a bit but im wondering do i need a new one! Also changed the ecu to a vti one for mot.
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If the car hasn't been mapped for the h22 injectors that's most likely the problem, I doubt the stock ecu designed to run 230cc injectors will be able to cope with the amount of fuel trim needed to reach stoichiometric air/fuel ratio.
 
Vtec6000 said:
Your just on the limit with lambda reading. CO is way over allowed level. What condition is the cat in?
Click to expand...

as far as i know the cat is perfect it was used for NCT's before and passed
I put a standard teg r ecu in it today wil that help?
 
Jack-Civic said:
So you reckon a cat and b16 injectors shud do it?
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Yeah that's your best bet. Throw some dipetane into aswell, should be able to get a bottle at local motorfactors.

Dicko09 said:
as far as i know the cat is perfect it was used for NCT's before and passed
I put a standard teg r ecu in it today wil that help?
Click to expand...

Depends on spec of engine weather or not it would be wise to run it on stock ecu or not. Where about's in Ireland are you? I might be able to tweak your power fc to pass emmisions test if the problem is with map.
 
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Depends on spec of engine weather or not it would be wise to run it on stock ecu or not. Where about's in Ireland are you? I might be able to tweak your power fc to pass emmisions test if the problem is with map.[/QUOTE]


im in kildare....eh its a stroked b16b with standard cams
need it sorted this week....i was told it could be a leak in the exhaust either
 
Dicko09 said:
.
Depends on spec of engine weather or not it would be wise to run it on stock ecu or not. Where about's in Ireland are you? I might be able to tweak your power fc to pass emmisions test if the problem is with map.
Click to expand...


im in kildare....eh its a stroked b16b with standard cams
need it sorted this week....i was told it could be a leak in the exhaust either[/QUOTE]

Will be ok to run the standard ecu then but there's no reason it shouldn't pass with power fc. Could be a leak, cover the tailpipe while car is running and see can you hear it blowing out anywhere.
 
Vtec6000 said:
im in kildare....eh its a stroked b16b with standard cams
need it sorted this week....i was told it could be a leak in the exhaust either
Click to expand...

Will be ok to run the standard ecu then but there's no reason it shouldn't pass with power fc. Could be a leak, cover the tailpipe while car is running and see can you hear it blowing out anywhere.[/QUOTE]


im gonna try this tomorrow and see! ive bin told it could be a faulty o2 sensor either
 
Dicko09 said:
Will be ok to run the standard ecu then but there's no reason it shouldn't pass with power fc. Could be a leak, cover the tailpipe while car is running and see can you hear it blowing out anywhere.
Click to expand...


im gonna try this tomorrow and see! ive bin told it could be a faulty o2 sensor either[/QUOTE]

You passed on lambda @.97 which is just on the limit but still when 02 sensors fail they are normally out by a good bit.
 
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