i have a 88 crx si with a d15b dpfi motor converted to a MPFI motor. it starts and idles well but the problem is when u touch the throttle it just stalls out it. Im throwing 4 codes which are 6,7,9,10 an btw im running a pm6 ecu... when i bought the car it had no motor, tranny, harness or ecu so im using a LS harness on the motor. Is this my problem?? some one please help 88 crx si harness's arent exactly easy to come across. ive run several test and the most ive been able to figure out is that when i unplug the wire on the TPS it still acts the same.CEL 7 is tps and i have a brand new tps as well as 2 used honda tps's that ive tried. CEL 6 is engine coolant temp sensor. 9 is CYP sensor which i know is part of the DIZZY. i have a brandnew dizzy on the motor as well i just bought it from autozone and i still have my old one so wats going on.. 10 is air intake temp sensor an im using the original one that seems to be in decent shape visualy. my friend is telling me it may be fuel pressure problem or injector promlems.. i think i need a profesinals help:

 

the ls harness is your problem. although it might not be easy you're going to need to find a stock harness.

 

Tps

 

im get no change from anything when i disconnect or change the tps.. i have 3 tps's one is brand new so i know its not the sensor. its like the ecu is just searching for tps but getting nothing at the ecu.. i know there has to be a way to fix this. i used a ls harness an such on sevral other swaps.. maybe something has tto be repinned at the ecu. the car i know used to have a b16 swap. maybe its pinned all crazy already. someone please help. ive searched the web for 88crx si harness and they are rare to find.. not to mention expensive at least 150$

 

now my friend is tellin me it would be easier to convert to obd1 with a jumper an yada yada yada.. but i still dont think that will fix my problems. its starts and runs great it doesnt die or anything. Im pretty much lost..

 

*BUMP* hello? i know there has to be a way to fix this. most hondas have to same typical wiring its all just color matching the wires to the plugs.. i know my wiring is spot on. buying a new harness is what honda would say.. i know there is someone here who can help. honda tech is supposed to be the know all place to go for anything honda related??

 

how can you be sure the wiring is correct? judging by how the car is running i think we can agree that it's not correct. you can't use a teg harness in a civic, they are not interchangeable.

edit: my b, thought i had read it was dpfi

 

the car is a 88 si crx which is factory equipped with a mpfi engine.. i got the car with nothing under the hood. i got a DPFI motor and converted it MPFI. the wiring out of a LS intregra is essentialy the same as a si crx motor because its factory MPFI engine as well.. all the wires are the same if you color match the wires from a SI crx to a ls integra wiring harness.. the problem is that 88 si crx are kinda a bastard year. like the tranny is 21spline and the plug on the resistor box is more square instead of retangular like some 89 and up crx's. So even another crx si harness will still not quite plug in properly everywere. i really need to get a pro's advise.. i beleive my friend is using a ls harness in his ls swaped 1990 si crx.. if somehas a 88si crx harness laying around im willing to pay for it as long as it reasonably priced.

 

bump???

 

an this guy used a integra harness in a crx.. so i know its possible. http://crxcommunity.com/featured/November2007/

 

UPDATE: after going over lots of things today on the rex i figured out my fuel filter was clogged and i changed it.. now my car is able to rev to about 4 rpm and it starts missing real bad.. im still throwing codes 6,7,9,10 Someone on this forum has to know where or who to look towards for help. . . this is starting to get frustrating i really wish i had the money to dish out for a harness on ebay.. if someone has the right one laying around PM me with a reasonable price please.