efi 202

ekdave1962 · Post by **ekdave1962** » Tue Sep 15, 2009 3:49 pm

hi guys i have fitted a black efi motor to my ek but seem to be having a problem with the wiring side of things .. any one do this conversion ?

ooh and please dont send me to the old holden site with a wiring diagram i have that but really need to chat to someone that has completed the operation ..

thanks David

NoMAD · Post by **NoMAD** » Tue Sep 15, 2009 4:20 pm

i believe Sammy's your man, pm him

cheers
NoMAD

ek61 · Post by **ek61** » Tue Sep 15, 2009 7:49 pm

yeh i got the info from sammy aswell

and im sure he would help out again

also grab a vk efi work shop manual .follow the wiring diagram and strip out everything thats not efi related from the loom

i could take some pics of mine but wont be back from holiday untill the 22nd

dave68 · Post by **dave68** » Tue Sep 15, 2009 7:54 pm

Gregories number 222 I think and it helps so much.....

ekdave1962 · Post by **ekdave1962** » Tue Sep 15, 2009 8:31 pm

thanks guys will have a look at it tomorrow sammy has sent me a few things as well .. although i just checked and i had the brown wire from ecu to neg coil and still had no joy with the set up seem the injectors are power all the time and not pulsing .

now should there be a wire to +ve on coil ? and not the wire to the tachometer relay ? ..

ooh and i need a back pressure valve for the injector return lines if any one has a spare .. or can recommend a suitable substute as vk efi black stuff is getting hard 2 find ..

D

dave68 · Post by **dave68** » Tue Sep 15, 2009 8:32 pm

As said try repco. They should be able to get what you need.

ekdave1962 · Post by **ekdave1962** » Wed Sep 16, 2009 12:12 pm

ok have checked all the wires and they seem to be correct now ..
i notice fuel pressure is a bit low 20 psi think its ment to be 37 ?

also still cant get the injectors to pulse using a globe .. seems both wires in have +ve feed ?

now i wondering if the ecu is dead or there is something else i should try ..

like a 186 lol

Trev · Post by **Trev** » Wed Sep 16, 2009 4:25 pm

Did you use the rite alternator?

ekdave1962 · Post by **ekdave1962** » Wed Sep 16, 2009 5:39 pm

um no i used a 55 amp one but not sure that would make a difference ?

since its not firing .. as injectors are not pulsing from what i can tell

dave68 · Post by **dave68** » Wed Sep 16, 2009 6:29 pm

55 worked for me, you shouldn't have +ve on both sides. You have a blue wire and a yellow wire from memory, it sounds like you have a cross over somewhere. Trace them back to the ECU, I hope you haven't killed the ECU as they are getting like rocking horse poop to find.
Just got mine back from the shop and it is running like a dream at the moment. Gave it a boot full and the wheels spun, that has never happened to me in this car. Must have been a oil patch on the road

sloth · Post by **sloth** » Wed Sep 16, 2009 11:23 pm

ecu pulses earth to injectors injectors always have power and you are getting power on both wires because injectors are a coil and feeding through loom this is normal do not use a globe of high wattage to test for pulsing you need a special test light where did you feed power to ecu from not sure about vk but vl ecu will not start if ecu is getting less than 12volt when cranking if you fed ecu from ignition it is ballasted to lower voltage

ekdave1962 · Post by **ekdave1962** » Thu Sep 17, 2009 7:38 am

Thanks Sloth,

ECU is currently feed directly from battery supply, i did use a fairly high wattage globe to test so will try something smaller or maybe even a multi meter to see if that shows any readings that may give me a clue.

Yeah Dave the injector feeds are White and blue, im guessing the pulses are sent to the ecu via the -ve feed from coil. it could be something simple like a miss matched coil ?? as the one i am using was from the 186 .

well its light here time for another day of fun and games under the bonnet .. thank all

ekdave1962 · Post by **ekdave1962** » Thu Sep 17, 2009 9:17 am

YES YES YES ....

ok incase u didnt guess finally got it sorted ..
for those interested .. the brown wire to the ni 1 pin on ecu was missing
i know sammy u did mention it but it wasnt until i sat out in my car port in rain armed with multi meter and diagram that i found it ..

now comes the task of putting it all in neatly cos atm there is wires hanging every where as a temp set up.

looks like a long day for me as i was hoping to have it ready for car club run on sunday ..

A big thanks to everyone who added there ideas and thoughts ..

D

ekdave1962 · Post by **ekdave1962** » Sun Sep 20, 2009 4:11 pm

Gee spoke too soon ..

re ran all wires fitted radiator etc now she fires but wont run ..
have injectors pulsing .. fuel rail pressure is 28 psi
got spark what else can it be .. sealed all possible vacuum leaks ..

removed plug dry and very black ?

clues anyone ..

maybe a small block chev with fix the problem

sloth · Post by **sloth** » Mon Sep 21, 2009 5:03 am

fuel pressure low fuel pump faulty maybe or regulator pump not running when cranking