Few questions bout motor
 

ok so i just got a civic off my buddy that he recently did a sawp in it and im pretty unfamalliar with civic :confused: but am a licensed mechanic. now the has the d16 vtec the car does not have an ecu. the car itself was orginally not vtec. so my question is will the p28 ecu just be plug n play or will that have to be modded? also is the p28 the only ecu i can put in the car? thanks

what year is the car? if its a 92-95 yes the ecu will plug in, any years prior or after that you will have to get a conversion harness to plug that ecu into the cars factory wiring harness

dito.... is it a d16z6. d16y8 motor.... or is it a 92-95 or 96-00 civic....

the Z6 is for 92-95 civics and the Y8 is for 96-00 civics.

Yea, we need to know the engine code to tell you.
If it's a D16Z6 get a P28 ECU.
If it's a D16Y8 and you don't have to pass smog in your state, get an OBD2-OBD1 ECU conversion harness from phearable.net and then use a P28 ECU.


Also, did he swap engine harnesses too? If the engine harness hasn't been swapped you'll need to run two wires from the VTEC oil pressure switch and VTEC solenoid to the ECU. On OBD1 ECU Harnesses, the VTEC solenoid wire is at pin A4. Not sure where the oil pressure switch is, but you can look it up.

yeah a p28 with a conversion harness will work your motor must be a frankestien motor or some would just call it a mini me swap dseries

the car is a 92. and my buddy had said something about having to run two wires to the ecu. and all i knwo about the motor is that it is a d16 vetec i would check the engine code but the car isnt at my house its at my garage so. but what im gathering from all this is that i should get the p28 ecu and run the two wires? if im wrong here please correct me.

yes, exactly

ok thank you everyone for all your help.

check the engine code tho and let us kno.

can do

the motor is a d16z6. and i know you guys said i need a p28 but is it possible to use a non vtec ecu? then woudl the vtec just not work or do i have to use the p28. and if so what is the best place to get a p28 because saturday i went to 7 junkyards and every civic i found already had the ecu taken out. so they seem to go quick.

your going to be hard pressed to find any Honda ECU in a junkyard.

You can use a non vtec ODB1 ECU but Vtec would not engage. Your best place to look for an ECU is going to be eBay, HT, here, or other forum FS sections.

phearable.net

yeah ECU's are hot money, some website will buy them off you just to chip them and re-sell them.

But p28 is what you need, you can get them cheap off eBay

ok. i checked ebay and saw the price i jsut wasnt sure if they were the best quality i guess is the word im looking for. money is not really and issue for me. i leave for basic training for the army and my brother is going to finish working on the car for me while im gone. so i wll have money. umm so if i used a non vtec (only reason i would do that is to get it on the road right now) will that affect the driving at all? and also i was wondering we had had my buddys p28 hooked up to the car but did not have the wires running to the vtec. did not know they had to but ne way. all the car would to is crank it wouldnt kick over. so we put a new disrubutor on (old one was bad) and still nothing. it has fuel and it has spark. we allso did a compression check and all cylinders were arounf 135 the 4th was arounf 117? is that bad and would that keep it from starting? if not what else could it be. sorry for all the question and if any of the questions have already been answered in other posted i apologize i did search but did not find answers but that doesnt mean there isnt. but thank you guys all very much so far for all your help.

yeah i had the same prob but i found one if u wunna do the ecu to have the non vtec i got it sitting right here let me know

ok will def keep that in mind.

bumping for my questions two posts ago.