Over weekend, swaped motor, ecu from b15 to b16z6, got it all done, now throwing 3 codes, 10, 14, 21. Looked them all up, switching back to stock EG ecu gets rid of all codes but tranny code.
With VTEC ecu, the intake sounds like a 747 intake, loud sucking noise, stock ecu quiets down a lot.
Both idle smooth.
Good punch when stomped.

HELP!!!

 

first of all its a D15 and a D16z6. make sure u have the right ecu.

 

also did u wire up vtec wiring. and check if the iacv and the iat wires are crossed up.

 

sorry can you please let me know what the iacv is.
Yes vetc is wired up.
Where is the ks located, i need to check wires on it too. Thanks

 

ECU was the unit that the engine was attached to, came from same car.
The shop I bought the setup from is a honda shop, thought they would be more help.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by gt3hurman &raquo;</TD></TR><TR><TD CLASS="quote">sorry can you please let me know what the iacv is.</TD></TR></TABLE>

IACV = Idle Air Control Valve. It is located on the back of the manifold near the throttle body side and has 2 coolant hoses running in and out from the throttle body. The IAT = Intake Air Temp. Both the IACV and IAT have the same style round 2 prong plugs so it's possible that you have the connectors backwards.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by gt3hurman &raquo;</TD></TR><TR><TD CLASS="quote">Where is the ks located, i need to check wires on it too. Thanks</TD></TR></TABLE>

Neither the D15 nor D16Z6 have a knock sensor.

The pinouts for both ECU's are the same so you should be throwing the same codes when using either ECU. You need to use the P28 ECU (should be the one you have from the D16Z6) and check the connections for the IACV, IAT and VTEC solenoid.