Emission failed. AIRPUMP direct to Cat without ACV??
#1
Junior Member
Thread Starter
Emission failed. AIRPUMP direct to Cat without ACV??
Hi everyone! (sorry my bad english... ) I failed in the emission test , obviously I had not any catalytic.
Now I installed a catalytic converter, I have the airpump connect to the manifold, but I havenīt the ACV.
ACTUAL - So my setup now is this one:
OPTION A - So, could be work the next setup???:
OPTION B - If not, could be work directly from airpump to cat?? Will I need cap the red part?
Other question is the catalytic, because the CAT that I bought has two air injections... why?? must I cap one? Use both? whaaat?!!?
Thanks everyone!!!
Now I installed a catalytic converter, I have the airpump connect to the manifold, but I havenīt the ACV.
ACTUAL - So my setup now is this one:
OPTION A - So, could be work the next setup???:
OPTION B - If not, could be work directly from airpump to cat?? Will I need cap the red part?
Other question is the catalytic, because the CAT that I bought has two air injections... why?? must I cap one? Use both? whaaat?!!?
Thanks everyone!!!
#2
rotorhead
iTrader: (3)
I'm pretty sure you want to use #1 for hooking up the air pump and cap others. I have no idea what they do for emission tests in your area. Do they run your engine just at idle? Do they put it on a roller and have it go some fixed speed like 50 km/h ?
I think if you block off the ACV completely you don't have any choice but to put it right to the cat. So option B. I think you need to cap it, but it's hard to say from the picture. I don't have the car in front of me. Or you should be able to put the ACV back on, not hook anything up to it (no vacuum lines or electrical connectors) and it will flow air to the cat all the time.
I think if you block off the ACV completely you don't have any choice but to put it right to the cat. So option B. I think you need to cap it, but it's hard to say from the picture. I don't have the car in front of me. Or you should be able to put the ACV back on, not hook anything up to it (no vacuum lines or electrical connectors) and it will flow air to the cat all the time.
Last edited by arghx; 09-04-16 at 09:11 AM.
#3
Junior Member
Thread Starter
Thanks! Itīs really helpfull your info!
My emission test is CO in idle, CO in accelerated Idle (between 2000-3500rpm approximately) and LAMBDA in accelerate idle.
Lambda must be min 0.97 - max 1.03 (in the failed test were 0.85).
Iīm not really sure what mean "FEEDBACK" (my bad english ) But I think that in mode "Feedback LOW SPEED LIGHT LOAD" is my accelerated idle... right? So I need for pass the test a portion of the air pumped... maybe? :S
Thanks again!
My emission test is CO in idle, CO in accelerated Idle (between 2000-3500rpm approximately) and LAMBDA in accelerate idle.
Lambda must be min 0.97 - max 1.03 (in the failed test were 0.85).
Iīm not really sure what mean "FEEDBACK" (my bad english ) But I think that in mode "Feedback LOW SPEED LIGHT LOAD" is my accelerated idle... right? So I need for pass the test a portion of the air pumped... maybe? :S
Thanks again!
#4
rotorhead
iTrader: (3)
Accelerate idle. So you mean high idle speed. Does the vehicle move on a machine (dyno) or does it not move?
Do they test HC or NOx?
I think you just need to get the air pump working. Feed back means oxygen sensor is controlling lambda. No feedback means computer controls lambda without oxygen sensor. Idle speed is never oxygen sensor on an Rx7. But if the vehicle is moving on a machine (wheels turn, on a dyno) it is different.
CO emission is controlled by lean or rich. Lean is low CO. Rich is high CO. HC and NOx are more complicated.
Do they test HC or NOx?
I think you just need to get the air pump working. Feed back means oxygen sensor is controlling lambda. No feedback means computer controls lambda without oxygen sensor. Idle speed is never oxygen sensor on an Rx7. But if the vehicle is moving on a machine (wheels turn, on a dyno) it is different.
CO emission is controlled by lean or rich. Lean is low CO. Rich is high CO. HC and NOx are more complicated.
#5
Junior Member
Thread Starter
Not hc or NOx, only CO and lambda(they read the lambda in the muffler (end of the exhaust).
I mean high idle speed (not dyno or moving) in 3000rpm.
Thanks mate!!!
I mean high idle speed (not dyno or moving) in 3000rpm.
Thanks mate!!!
#7
Junior Member
Thread Starter
Thread
Thread Starter
Forum
Replies
Last Post