egricepatrol

i dropped ina jdm b16 motor in my cx hatch and i was wonderin if i was to replace the engine harness with a obd1 vtec one off a gsr or del sol b16. whould i need to change my dash plugs to i can pass smog with the referee. right now i jus wired up my stock harness for vtec. and i dont know wut 02 sensor to plug in. any help would be very much appericiated

HondaFanatic708

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by egricepatrol &raquo;</TD></TR><TR><TD CLASS="quote">i dropped ina jdm b16 motor in my cx hatch and i was wonderin if i was to replace the engine harness with a obd1 vtec one off a gsr or del sol b16. whould i need to change my dash plugs to i can pass smog with the referee. right now i jus wired up my stock harness for vtec. and i dont know wut 02 sensor to plug in. any help would be very much appericiated</TD></TR></TABLE> You could buy another harness but why bother. Go to your honda dealer and get some electrical pins or canabalize a clip from a junk-yard car. Re-wire your VTEC and all the other **** right through the OE wiring clips. It really isn't that hard to do. Just need some solder and your good to go. The only wire you should have to run to the ECU from the enigne bay is the knock sensor wire.

HondaFanatic708

Oh **** your in Cali... Well buy some sort of piggyback or other fuel managment system. Only way I could think of a JDM motor passing Cali smog. Turn the fuel way down. Hide you A/F gauge when you smog though. Don't want em seeing how lean your running it. VACF-II works well for this. Happy Tuning!!

egricepatrol

well, wut kind of 02 sensor would i use if i was too sawp a different harness?

TallAssFilipino

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by egricepatrol &raquo;</TD></TR><TR><TD CLASS="quote">i dropped ina jdm b16 motor in my cx hatch and i was wonderin if i was to replace the engine harness with a obd1 vtec one off a gsr or del sol b16. whould i need to change my dash plugs to i can pass smog with the referee. right now i jus wired up my stock harness for vtec. and i dont know wut 02 sensor to plug in. any help would be very much appericiated</TD></TR></TABLE>

What year is your CX? If it's a 92 or 93, then all 92's and some 93's came equipped with under-dash VTEC wiring (OBD1).

egricepatrol

mine is a 92, so does that mean i can use and obd1 vtec harness off a gsr or b16 del sol or possibly ? if so wut about the 02 sensor and knock sensor

HondaFanatic708

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by egricepatrol &raquo;</TD></TR><TR><TD CLASS="quote">mine is a 92, so does that mean i can use and obd1 vtec harness off a gsr or b16 del sol or possibly ? if so wut about the 02 sensor and knock sensor</TD></TR></TABLE> All you will need to do is run the VTEC wires under the hood, BTW they should be on your B16A engine harness. Then you will have to run the knock sensor wire all the way to the ECU, pin D3 at the ECU from there it goes to chassis clip 216 which plugs in to Engine harness clip 101 then the RED/BLU wire runs to the knock sensor. If you knock isn't corrected properly and you have an ECU that looks for one you will more than likely get a CEL. Code 23 Check for continuity between D3 and a body ground. If there is continuity then repair the short in the RED/BLU wire between ECU and KS. If there is not continuity there check from D3 to the KS wire. If there is NO continuity then repair the wire. There are some other steps from there but that is only if the ECU or KS are physically bad. If this doesn't help I don't know what to tell ya. Hit us back and happy tuning!!!

egricepatrol

im thinkin bout using an obd1 ls engine harness for the 02 sensor. or would i be able to wire it to my current harness? and there is no o2 sensor on my car right now and i am running a p28 skunk2 program. but when i redline at 7500 rpm my car bogs out and stops pushing. it jerks my *** forward and ****? is it cuz my ecu is in safe mode since i dont have a 02 sensor pluged in? would i also need to wire a crank sensor?

HondaFanatic708

Hmmm I would have to check on the crank sensor, I beleive your wiring is already equipped to handle this. You can wire any harness up with any other harness, some are just more of a pain in the *** to splice everything over. Just get some extra under-hood clips from a junk yard so you can steal the wiring pins out of em. Then install the pins in the proper area to wire the o2 sensor. Your program on the EMPROMM chip may be what is causing the car to stall out at 7,500. Does it feel like it may be a rev limiter? I don't the o2 sensor will throw the car in limp mode. I have a 91 Teg RS, with LS motor no 02 sensor wired up. My prob is the ECU is stock so the rev limiter kicks in at 7,200 RPM so I couldn't test the o2 sensor theory for ya. Myabe when I drop VTEC on the bitch we will see. Good luck and happy tuning!!!

egricepatrol

im bout to swap my b16 head wit a new one from the 99-00 si. would it be alright if i was to reuse the same headgasket?

CRXified

if u have a 92, its plug and play with ur harness minus the extention of the O2 sensor wires and running a knock sensor to a pin in the ECU (A6 rings a bell here).

92 are pre-wired for vtec as was mentioned before. and i just did this swap in my car last weekend so if u have any questions PM me cause its still fresh in my mind

egricepatrol

hey where did u get the info bout the 92 civic cx being prewired for vtec?

HondaFanatic708

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by egricepatrol &raquo;</TD></TR><TR><TD CLASS="quote">hey where did u get the info bout the 92 civic cx being prewired for vtec?</TD></TR></TABLE>This is common knowledge. Why would they waste time having 2 different chassis harnesses manufactured when they could just include the few extra wires in the non-VTEC cars. Oh BTW this supposedly stopped somewhere in late 93 production. Think long and hard about it, it only makes sense.

CRXified

my car is a 93 and it wasnt pre-wired, but didnt matter i just ran teh 3 wires and was done with it.

yeah and its common knowlegde for a 92 to be pre wired.