94hondap28

so i took out the old d16z6 out of my 1994 hond civic ex... with abs if it matters..

i got a jdm b16 put that in and have been having alot of problems since..

first..


had a bad tps... changes that... no more tps code

had a bad ects (engine coolant temp senc...) changes that no more ect code..

dont have any other codes besides a ait sence (air intake temp senc..)

okay..

the car yesterday was running really crappy before i changed all that stuff it was driving fine about a week ago.. about 3 days ago it started bogging out when you get around 4500 rpms.. checked oil.. good.. checked coolant.. great.. checked all sensors good... checked timing... good... new plugs and wires new oil filter and oil... proper axles proper motor mounts..

okay today i put new sensors on and everything was running great cept for it was still loosing power at 4500 rpms but when v-tec hit it was crazy power... now i was driving home from work tonight and it wont let me rev past 3500 rpms.....

i hard wired in the obd 2 distribuitor with the single cam obd1 wiring harness along with changes the injectors to obd 1 inkectors and used the obd2 altanator just wired that in too.... any help would be REALLY helpful thanks

B serious

iTrader: (1)

You dont have any more CELs?

94hondap28

cels?? i dont know what that is but im runnin a stock p28 ecu.. tried reseting tht many times

B serious

iTrader: (1)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 94hondap28 &raquo;</TD></TR><TR><TD CLASS="quote">cels?? i dont know what that is but im runnin a stock p28 ecu.. tried reseting tht many times</TD></TR></TABLE>

Check engine lights = CEL. Any codes being thrown?

94hondap28

okay i have a air temp senc that is it... no other codes.. but it was running fine and i havent ever had that sensor pluged in before.. and it ran fine before

94hondap28

when i try to go over 3500 rpms it will not let me whats so ever.. but earlier today it was letting me go to red line or whatever..

i even unbolted exhaust cause someone told me that it might be the resignator or the cat

lsdB16aEj1

if you are running a b16 on a virgin p28 it's not going to run normal unless you have it chipped with a B16 map, otherwise you need to use a p30 ecu.

94hondap28

but it was running fine... this all just happend within the last 3 days and i have had it in for 2 weeks driving it.. its just all the sudden doing this

B serious

iTrader: (1)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 94hondap28 &raquo;</TD></TR><TR><TD CLASS="quote">okay i have a air temp senc that is it... no other codes.. but it was running fine and i havent ever had that sensor pluged in before.. and it ran fine before</TD></TR></TABLE>

Well...there's your problem. You cant run without that sensor. The ECU doesn't know fuel curves without it.

This is how speed density fuel management works:

The Air temp sensor senses the temp of the air (duh). The MAP senses the pressure inside the manifold. Both those are put together inside the ECU and the TPS is factored in. That's how the ECU knows how much air is in the manifold and how much fuel to add for each cycle. The concept is that air is denser when it's cold. Couple that with a pressure reading, and you can calculate air mass inside of the manifold. IT DOES THIS FOR EVERY SINGLE FUEL CYCLE. It's fast. But it needs that AIT and MAP reading. Those are critical sensors.

If you ECU has a safety or generic setting for when the air temp sensor is not operating. It will operate under that safety setting until the air simply gets too hot or the generic setting is inaccurate to the point where the car will not run properly.

You need to get a new AIT that works properly (air temp sensor).

The P28 is not correct for the B16A unless it is chipped. Then it's kinda sorta made to be correct.