90goldhatch

ok i converted my dpfi harness to dohc zc, im getting codes 7 Tps, 14 IAC (EACV. im positivily sure i did all the wiring right, the car wont go pass 2k rpms then it just dies out, i dont know what else to tell you guys but help! tried to explain it as easy as possible

not sure if this makes a difference but the harness came from a 90 hatch and its in a 88crx now

1 Fly SI

You usually use the original harness for the car. Even if the engine harness connects at the shock tower, The wires are usually in different locations. So the crx was a Dx and the civic was a what? So it runs but is in limp mode? Have you cleared the codes? Did you reverse the wires on the tps?

90goldhatch

the civic is std, yes i reversed the wires on the tps, and the car dies out i have to press the gas just to keep it running

the reason why i used the civic harness in the crx because i used the crx harness in the civic and it was already converted to mpfi zc, so thats running. now im just trying to get the crx dohc zc running

1 Fly SI

What chart did you go by on the mpfi conversion? did you clear the codes?

90goldhatch

i used the dx to zc on thezcr.com, and what to you mean clear the codes?

1 Fly SI

Clear the codes out of the ecu? pull the ecu fuse out for 30-45 seconds. The ecu will store the codes. see if that helps or not. If the car runs, which you stated it does and is running on all four cylinders than the mpfi swap is good. If clearing the codes doesn't work than you have a sensor plug hooked up in the wrong spot or a bad connection. Did you ajust the tps?

90goldhatch

no i didnt adjust the tps, how would i go about that, and ill clear the codes tomorrow because the wires are a mess right now i reopened the loom where i did all the wiring to double check and yeah its just a mess

1 Fly SI

You could check the voltage on the tps to see if it is correct. It could be a bad tps.
let us know.

90goldhatch

ok cool ill let you know by tomorrow what happens , thanks

90goldhatch

ok we just swaped the harnesses, so i guess you cant use the civic harness in a crx now we are getting code 9cyp cylinder position, is that the two extra wires for the zc???

jlicrx

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by xXLevoNXx &raquo;</TD></TR><TR><TD CLASS="quote">ok we just swaped the harnesses, so i guess you cant use the civic harness in a crx now we are getting code 9cyp cylinder position, is that the two extra wires for the zc???</TD></TR></TABLE>yes, code 9 is for cylinder sensor which is on the end of the exhaust camshaft - code 9 can be a bad cylinder sensor (rarely goes bad) or something wrong with the wiring to the sensor (bad connection or wires not in the right place) - or could be exhaust camshaft timing not correct

jdm_titan

check ur Timing on intake and exhaust

90goldhatch

yeah i pulled my cylinder sensor off my hatch and put it in the crx and it reved fine before that it wouldnt even go pass 2k so i guess thats solved, now the car just keeps cutting off but i think its out of GAS , ill let you guys know by tomorrow, and can i use a first gen zc cyp on my motor?

jlicrx

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by xXLevoNXx &raquo;</TD></TR><TR><TD CLASS="quote">can i use a first gen zc cyp on my motor?</TD></TR></TABLE>you can use the cylinder sensor from 88-89 (not 86-87) Integra D16A1 on the DOHC ZC

90goldhatch

ok um no codes but the car just keeps dying it has gas. what next?

90goldhatch

it stayed running in this video i have no codes,i took it around the block it goes but its real slow, just wondering if you guys can tell whats wrong with it by listening to this video

1 Fly SI

Map sensor? Do you have a vaccum line hooked to it?