i have a lil issue with my 91 crx si. i just put a 95 b18b (ls) in it, went to start it....no start. im not getting spark.... sorda..... i pulled the plugs, set them on the intake manifold (grounded) and turned it over to see if i was getting spark. my #3 and #4 plugs each spark twice then i dont get any spark at all. the other 2 plugs dont spark at all. i replaced the dizzy, cap, rotor, wires, and plugs since i wuz gonna do that anyways. tryed 2 different ecu's, a pm6 and a pr4. and still the same problem. i bought the car with no motor so i had to get a motor harness. im using a HF harness. i wuz told si and hf harnesses are the same thing. is that right???????? also when i bought the car i didnt realize till i got home but there wuz mice living in it 4 awhile. does this issue sound like those mice got to my body harness???????? any help would be greatly apreciated. thanks

 

no one has any advice????

 

well,

if you replaced everything in the ignition system and you still dont have spark, i would guess it would be in the wiring.

what distributer are you running?

is it timed correctly? and at TDC?

what about measuring for resistance at the plugs for the dizzy...

 

obd0 ls dizzy, and i havent timed it yet cause i havent gotten it started. what do u mean by measuring resistance??? what would that tell me aout the dizzy???

 

it needs to be in time to start properly....

search for the ohm resistance that is supposed to be at the distributer.

this would let you know if are getting power, or have a potential short in the wiring.

 

how do u time it if the cars not running?? and when i took the obd1 dizzy off i put the obd0 dizzy at the same spot. ill check the resistance when i get home. do u know if the HF and SI harness are the same??

 

you put it in time by putting the timing marks on the crank pully and the cam gears straight up. make them point straight up.

You have a B18b with d-series engine harness from and hf?

and you cant have an obd1 dizzy in a obd0 car. wont work....

 

ur not reading very well. lol. i said when i took the obd1 dizzy off i put the "obd0" dizzy in the exact same spot. and yes, im using a d series harness out of a HF.

 

and if i wanted 2 i could put a obd1 dizzy on my motor. i would just have 2 do sum re-wiring...

 

okay. well,

thats your problem.

you need the engine harness for a B18b. not a D16(si) or a D15(hf).

ive read you may be able to use the si harness with some modifications depending on which OBD you run. but you will def. have to use the b18 injectors and if you stay obd0 you have to have a resistor box. look elsewhere for information on this

and

if your entire engine is obd0 an obd1 dizzy wont work,
and by "wont work" i mean wont work.

just use the obd0 one & get the proper engine harness for your motor

 

thanks for the advice but i dont think u know what ur talking about. for 1 my "motor" came out of a 95 teg "obd1". i had to convert a few things to obd0. for 2 a b18b "obd1" harness wont plug into my body harness "obd0". and neither will a b18a "obd0".. for 3 u can use a d series harness. for 4 in this thread i said 3 times already im using a obd0 dizzy. thanks anyways

 

can anyone that knows what there talking about help me out please. does any1 know if the HF motor harness is the same as an SI. my problem has to be either the HF motor harness isnt compatible with my SI body harness...or the mice got to my body harness where i cant see??????????? i would greatly appreciate any help. thanks

 

They are not the same.

 

man dont say he doesnt know what he is talking about that is uncalled for after all he is being polite enough to input and try to help you out in your problem

as for the harness the hf and si harness are diferent
\
so

 

i think he was being polite enough.. spreading incorrect information doesn't help anyone, and only serves to confuse others who are seeking out similar information.

clearly the hf harness is your issue. i'm not certain but it may be possible to reverse the directions givin above to get the hf harness to work in the Si. personally i think it would be many times easier to just source out a Si harness. they're not very expensive.
http://cgi.ebay.com/ebaymotors/88-91...Q5fAccessories

Use the obd0 pr4, obd0 dizzy, and obd0 injectors with res. box, and you'll be good to go

 

Use an engine harness of the same model as the car. Hf and Si are different, similar, but different.

 

c'mon now bud, i wasnt a d**k. i told him thanks. and like d16 said, if u dont know what your talking about dont reply cause it just confuses people. if you read the posts u would understand. anyways thanks 2 every1 who gave me facts. b4 i read all the last posts i found out how to do a search on here, since the top search bar isnt working. and found out the harnesses arent the same. did a lil wiring and now shes purring like a kitten. time for sum axels, shift linkage, radiator, and a new pair of 14's and ill smokin those 13's on the front down the street. check out my profile for pics. soon shell be ls-vtec... thanks again.

 

pm'd