did a b16a engine swap in my cx check engine light turns on when revs down from high rpm....think it is pulling a code one please help.....also i still have the stock radiator keep popping fuses cause fan stays on all the time so any ideas?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by hookeduphatch95 &raquo;</TD></TR><TR><TD CLASS="quote">did a b16a engine swap in my cx check engine light turns on when revs down from high rpm....think it is pulling a code one please help.....also i still have the stock radiator keep popping fuses cause fan stays on all the time so any ideas?
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code 1 eh?
Did you happen to reuse your CX engine harness on the B16 engine & B16A ecu or reprogrammed P28 ecu?

If yes, then that's why you're getting a code 1. The B16A ecu looks for 4-wire 02 sensor and if you're reusing your CX engine harness it uses a single-wire 02 sensor.

Your options are:
1) find yourself a 92-95 EX/Si engine harness and swap it with your CX harness altogether, then you won't have to worry about wiring anything accept the knock sensor wire (depending on what ecu you're using).

2) If you want to keep yer CX harness, wire in the 3 additional wires for the 02 sensor and be sure to be running a 4-wire 02 (your b16 should have one). You'll also have to wire up VTEC & the knock sensor (again, depending on what ecu yer using).