ok my friend left for the navy and left me his car.....ok wireing harness is a mess...where can i get on or how can i fix it i dont know where any thing goes.........and yes its just that bad.....ok also car boggs down...and has an idle at 2000 rmp.......i dont know what the hel is goin on here please send pics or help meh.....

 

"i dont know what is wrong with this car please send pics"


wtf? that's basically what you said

 

unfortunately noone else is going to know wtf is going on either without knowing more details. sorry
All I can gather from the info given is that your cars harness is pretty fucked up

 

im "projectteg" on here under the OP name..im not the OP im a different person .this is what it is,. its a crx with a jdm zc swap. its running the 86-89 ecu and the idle "hunts" at idle and even when you are holding the gas pedal in a fixed position. im thinink its the evap purges system, but im not sure. i thought it was the map sensor, replaced that, the tps is fine, the iacv is ok, and the engine isnt equiped with a fitv valve. also all the vacuum lines are hooked up and there are no vacuum leaks.

any insight?

also the ecu have been swap for different ones. this car is basically horrible...the swap was done wron....you cant tell if the cars trowing a cel because the cell light doesnt work,....ahh, to hack job swaps.

 

bump

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by AccordGreen &raquo;</TD></TR><TR><TD CLASS="quote">im "projectteg" on here under the OP name..im not the OP im a different person .this is what it is,. its a crx with a jdm zc swap. its running the 86-89 ecu and the idle "hunts" at idle and even when you are holding the gas pedal in a fixed position. im thinink its the evap purges system, but im not sure. i thought it was the map sensor, replaced that, the tps is fine, the iacv is ok, and the engine isnt equiped with a fitv valve. also all the vacuum lines are hooked up and there are no vacuum leaks.

any insight?

also the ecu have been swap for different ones. this car is basically horrible...the swap was done wron....you cant tell if the cars trowing a cel because the cell light doesnt work,....ahh, to hack job swaps.</TD></TR></TABLE>

i wrote this

 

First thin I'd do is get another ECU. Is your DOHC a black top or brown top, asking because you said you are using an 86 ECU?

 

All I can help you with is that Hasport Performance sells wiring harnesses for that swap. and as it goes for what type of zc it is its most likely a black top because the brown isnt compatiable with that chasis.

 

Also the best ecu's for that setup are the PM7 (best) PG6(good)PM8 (acceptable for temp purposes)

 

i think its running a 89 ecu. it was running fine, then he said one day it just started to act up. i think they messed around with some vac lines and his evap system is the problem. why is there a harness for that swap it looks like a direct drop in. excuse the n00bness when it comes to these engine....im used to f,b, and d-series engine. ive never really touched a zc(d16)

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by crxnonvtec &raquo;</TD></TR><TR><TD CLASS="quote">All I can help you with is that Hasport Performance sells wiring harnesses for that swap. and as it goes for what type of zc it is its most likely a black top because the brown isnt compatiable with that chasis.
</TD></TR></TABLE>
The harness is the same...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Autoworks &raquo;</TD></TR><TR><TD CLASS="quote">
The harness is the same...</TD></TR></TABLE>

figured they were

 

up and up for more help

 

is the car originally mpfi or dpfi
maybe got the wiring wrong

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by d16vtecx &raquo;</TD></TR><TR><TD CLASS="quote">is the car originally mpfi or dpfi
maybe got the wiring wrong </TD></TR></TABLE>

yea, it was converted to mpfi when it had a d16a6 head on it and it ran fine. the car previously had a b16 into so i would think it was converted right. the wiring on that looks fine. could the crank postion sensor on the exhaust cam on the passenger side of the car be doing it? because it looks like the did some wiring to that sensor.

 

what exactly is the problem with the car? is it just the fluctuating idle? fluctuating idle 90% of the time is bad EACV - could also be low coolant level

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jlicrx &raquo;</TD></TR><TR><TD CLASS="quote">what exactly is the problem with the car? is it just the fluctuating idle? fluctuating idle 90% of the time is bad EACV - could also be low coolant level</TD></TR></TABLE>

the idle "hunts" while idleing and while holding the throttle in a extended postion, like in neutral holding the pedal down 25% int will "hunt". ive never experienced this.

 

you say you can't check for codes?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jlicrx &raquo;</TD></TR><TR><TD CLASS="quote">you say you can't check for codes?</TD></TR></TABLE>

not sure if i can...the gauge lights dont work and im not sure if the ecu has the led indicator, i can check though

 

check the ECU LED - it is on the side of the PG7 - first thing to do is check EACV - unplug the connector from it - idle should drop to about 600 and stay steady - you will get a code for EACV (which you will need to clear later) - if idle doesn't drop and stay steady, it is probably not EACV

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jlicrx &raquo;</TD></TR><TR><TD CLASS="quote">check the ECU LED - it is on the side of the PG7 - first thing to do is check EACV - unplug the connector from it - idle should drop to about 600 and stay steady - you will get a code for EACV (which you will need to clear later) - if idle doesn't drop and stay steady, it is probably not EACV</TD></TR></TABLE>

yea done that, the idle drops, but doesnt stay steady it bounces up in down really fast. when i jump the connector the code should count out of the led, just like the cel?

 

you check the codes by counting the flashes of the LED - you don't need to jump anything - just look at the ECU - however, if someone put the PG7 internals into a PM6 case, you won't be able to see the LED - on the PG7, it is on the side, not on top like PM6

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jlicrx &raquo;</TD></TR><TR><TD CLASS="quote">you check the codes by counting the flashes of the LED - you don't need to jump anything - just look at the ECU - however, if someone put the PG7 internals into a PM6 case, you won't be able to see the LED - on the PG7, it is on the side, not on top like PM6</TD></TR></TABLE>

oh ok...thanks ill try that. i seem like such a n00b....sry about that i just dont know much about zc engines

 

no problem - make sure the cooling system is completely full of coolant and all of the air is out of the cooling system - next thing to check is the coolant temp sensor - warm up engine to operating temp (fan comes on) - disconnect the 2wire connector from the coolant temp sensor, which is on the end of the head below and in front of the distributor - measure resistance between the 2 terminals on the sensor itself - should be 200-400 ohms - if not, replace sensor

 

ok well i worked on the car a bit today and found that it is running a pg7 ecu. the think with it now is the car pops and bogs and has a really rough, it idles like a v8. im really not sure what wrong with this thing im about to take this thing and tear it apart and start from scratch/