well like the title says my car is running very very very rich once it is completely warmed up. I have just swapped a p30 b16 into it the sparkplugs are new and so is the o2. The ecu was purchased off of somebody on honda-tech. The car will run so rich that it will bog at around 3k rpm, but only once it is warm. I also have a narrow band o2 guage which i know doesnt mean **** but it seems to always read lean, off the chart lean after the car has been running for about 15 minutes. However at full throttle it will go back up to stoich/rich. My question is how do i fix this issue, could it be a bad ecu, or could anything else be causing this??? I would appreciate your guy's help.
thank you,
Roman

 

take the cover off the ecu c if its chipped..
-joseph

 

Well i have asked around and have gotten different opionions from different people locally, i want to boost the b16 so i did a compression test and all 4 cylinders read 104-110 but I am still concerend about how rich it runs. This is what happens on a cold start i am not too sure if this is becuase the car sat for a long time during the motor swap or if it actually is this rich


this is a picture of the ecu it does not looked chipped but i am not too positive on how ecu's should look inside.


but the plugs look crazy fouled and this is only after about a hundred or so miles

 

its burning oil.

 

compression 104-110? seems like motor is done

 

the plugs dont even look bad, id guess that your valve seals r fucked, if it spat out oil after sitting for a while. happened on my gsr too, smoked like crazy

 

I will tell you right now what the black fuely mixture is on the ground. Your valve seals, and most importantly valve guides. If you have plans on keeping this motor, now is a good time to put new valves in it as well. I don't know anything about ecu's other than mine is not chipped! haha jk but I leave that to someone else.

 

I did the compression test worng the first time it is actually about 180-190 across the board

 

flip up the knock board and take a pic

-joseph

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lightcrx &raquo;</TD></TR><TR><TD CLASS="quote">flip up the knock board and take a pic

-joseph</TD></TR></TABLE>

what is the knock board???

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by p00n &raquo;</TD></TR><TR><TD CLASS="quote">I will tell you right now what the black fuely mixture is on the ground. Your valve seals, and most importantly valve guides. If you have plans on keeping this motor, now is a good time to put new valves in it as well. I don't know anything about ecu's other than mine is not chipped! haha jk but I leave that to someone else.</TD></TR></TABLE>

even with good compression you think it could be valve guides/seals????

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by teler86 &raquo;</TD></TR><TR><TD CLASS="quote">

what is the knock board???

even with good compression you think it could be valve guides/seals????</TD></TR></TABLE>

Take off the board with the 4 phillips head screws....The "chipping area" is under it

 

problem solved my friend who i asked to pour in the oil once we were almost done with the swap poured in 2 quarts too much but it is all better now, and ready for boost