Finialized Fit Sheet Metal Manifold..
#27
02-04-2009, 10:41 PM
Here's what we did to Solve the LOW EGR FLOW CEL LIGHT..
Lemme try and explain what we did..
The reason why the ECU was seeing LOW EGR flow was because it needed to flow back into the cylinder head..
Look at the This picture of the USDM HONDA FIT.
EGR gases come from the EGR Actuator ALONG the GROOVE on the Cylinder head.
The EGR Gases flow through the BACK side of the manifold.
From the backside to the front side of the manifold, and gets re-distributed to the 4 intake ports and back into the engine..
The reason for the CEL with the old design is The EGR gases were not being distributed and the flow wasnt flowing at the rate it was supposed to be flowing at. Now if you look at the picture of the Cylinder head there are 4 wedges that allow EGR flow to flow back into the intake ports..
What we have done is Bypass all the flowing through the manifold etc.. etc.. ( PICTURED in pictures#1-3 ) is directly let the EGR gases flow from the EGR Actuator and evenly distribute the EGR Gases back to the intake ports..
This is basically doing the same thing that the OEM manifold was doing, which is true by looking at an OEM USDM Intake Manifold Gasket..
Flow comes from the middle and then needs to go to the 4 intake ports..
I hope i have explained it so everyone can understand what we did..
Lemme try and explain what we did..
The reason why the ECU was seeing LOW EGR flow was because it needed to flow back into the cylinder head..
Look at the This picture of the USDM HONDA FIT.
EGR gases come from the EGR Actuator ALONG the GROOVE on the Cylinder head.
The EGR Gases flow through the BACK side of the manifold.
From the backside to the front side of the manifold, and gets re-distributed to the 4 intake ports and back into the engine..
The reason for the CEL with the old design is The EGR gases were not being distributed and the flow wasnt flowing at the rate it was supposed to be flowing at. Now if you look at the picture of the Cylinder head there are 4 wedges that allow EGR flow to flow back into the intake ports..
What we have done is Bypass all the flowing through the manifold etc.. etc.. ( PICTURED in pictures#1-3 ) is directly let the EGR gases flow from the EGR Actuator and evenly distribute the EGR Gases back to the intake ports..
This is basically doing the same thing that the OEM manifold was doing, which is true by looking at an OEM USDM Intake Manifold Gasket..
Flow comes from the middle and then needs to go to the 4 intake ports..
I hope i have explained it so everyone can understand what we did..
#31
02-07-2009, 03:54 AM
i just installed mine. no CEL!!!!!!
it feels so good throughout the whole rpm range. almost has the ITB sound when you first punch on the throttle.
im really happy with it.
im not running any leaner than stock either. it will occasionally show a .1 jump on the a/f gauge but no more than that which could be the gauge error.
it feels so good throughout the whole rpm range. almost has the ITB sound when you first punch on the throttle.
im really happy with it.
im not running any leaner than stock either. it will occasionally show a .1 jump on the a/f gauge but no more than that which could be the gauge error.
#32
02-07-2009, 09:37 AM
i just installed mine. no CEL!!!!!!
it feels so good throughout the whole rpm range. almost has the ITB sound when you first punch on the throttle.
im really happy with it.
im not running any leaner than stock either. it will occasionally show a .1 jump on the a/f gauge but no more than that which could be the gauge error.
it feels so good throughout the whole rpm range. almost has the ITB sound when you first punch on the throttle.
im really happy with it.
im not running any leaner than stock either. it will occasionally show a .1 jump on the a/f gauge but no more than that which could be the gauge error.
When do we get a full write up??
#34
02-07-2009, 03:30 PM
uh.... i didnt do a diy cause i was putting it on at 11pm so me and my buddy just pulled off the old and on with the new.
sorry guys but the install is really simple.
pm me if you have any questions about installing it.
sorry guys but the install is really simple.
pm me if you have any questions about installing it.
#35
02-07-2009, 04:12 PM
thank's WRLEO for showing me what the EGR valve piping was there for, that's what i was wondering why it was designed like that. I think i'm going to be ordering one for myself also.
#39
02-08-2009, 03:35 AM
^^ Lol.
Just curious, this is because the projected sales of the mani would be FAR outweighed by the $$$ need to get through C.A.R.B. certification?
I hate CA sometimes.. soo many innocent bolt-ons that actually make cars run cleaner & more fuel efficient are "illegal" here because they don't have a magic sticker.. weak!!
Just curious, this is because the projected sales of the mani would be FAR outweighed by the $$$ need to get through C.A.R.B. certification?
I hate CA sometimes.. soo many innocent bolt-ons that actually make cars run cleaner & more fuel efficient are "illegal" here because they don't have a magic sticker.. weak!!