No Spark ! or maybe relay stopped working? PLEASE HELP!

[iloverbpowers]

Hey guys im stumped for answersand require help please

this is the first time ive posted on this website and first time ive ever done an engine swap so go easy on me =p anyways heres the problem i have

i have a 1989 Nissan Cefiro A31RB20e done 160,000 kms now the transmission died so i figured i might aswell freshen it up abit

please understand that i am not after a turbo 20 det or 25 det or what ever at the moment as i am going to univercity.

so i know how this works you grill me on having a motor thats gutless etc etc..anywho

im just after help =) please =) I replaced the RB20E with an RB20E out of a 1998 Skyline r 33that has done 70,000 kms

Heres where the fun started.I used the old a31 loomnow everything fit with a few adjustments

i double checked that everything had fit into right places eg: which wires to which.i had to cut a few wires and use the r33 loom plugs as the old ones didnt fit.

When i tried to start the carafter double checking everythingThe Engine turned over but had no Spark

the Coil if measured with a multimeter from the end which the loom plugs into coil with + and - has

0.15 - 0.17 volts this does not change if i am turning the engine or notas far as i understand this should be 12 volts?

i also did the Spark test on a spare sparkplug still no spark after turning engine over

Please note however everything worked fine before the engine swap.

Now today when we tried to start it up again we noticed the fuel pump was not starting up upon turning on the ignition

why would this be? if everything plugged back in? i had my dad check the fuses found a 20a and 15 a blown we replaced those but still the fuel pump wont start up and no spark

ive heard of relays? if someone would be kind enough to explain where those are please?the pump is getting 11 volts 7 volts and 0.01 onto the two grounds? when you crank it over it goes up to 0.03?

PLEASE HELP!! i really want this thing going!

[iloverbpowers]

Also sorry forgot to add The injectors fire you can hear them clicking

EDIT: Okay Ignition relay definatly working connected it to battery and it clicked on me every time so its definatly not blown

if it is my ignitor Where is it? and what is it ? what does it do? and how much are they to replace? and why did it break if everything was working prior to swap?Modified by iloverbpowers at 2:28 AM 11/22/2009
Modified by iloverbpowers at 2:29 AM 11/22/2009

[s13_240_rb20]

Try searching..lol

What you really need is the FSM for that engine. Start by explaining to us every plug and wire that you have to cut/adapt for the swap. That is also the place to begin your troubleshooting.

Find out what each wire is (in your spark system) and figure out where it gets its signal FROM......is it getting the correct signal?

Did you try putting a screwdriver to your coilpack and letting it arc to chassis ground? I find that more reliable than watching the spark plugs arc.

I have an rb20det and I assume your rb20e is setup the same way, so your ignitor should be at the top back of your engine, by the firewall, mounted on top of the coilpack cover....is it plugged in and grounded??

Now these are just silly questions, but are you sure your injectors are firing? Do a search and find out how to spin your CAS to listen for them and watch for spark (??) without turning the key.

If you still have your old rb20e, is your ignitor the same on both engines?? could be worth trying your old ignitor as a quick test...

--TJ

[s13_240_rb20]

oh yeah, I recall getting the same type readings from my multimeter when I TRIED to troubleshoot my no start problem a couple years ago, but my problem wasn't with my coils/ignitor...I think it was the spark plugs...That is why I asked if you have tried arcing the coil to chassis....

And are you sure your ecu is turning on and off and properly wired? did you have to swap ECU's to step up to the R33? Isn't that an OBD2?? I don't know where I'm going with this, so I will just stop and leave you thinking about your own wiring and whether it is done right. Ask us if you are hesitant about your wiring (and give details).

Have you checked your ECU for trouble codes??

--TJ

[Funktown240]

You are not getting power to the ignitor. . . . . .I had the same probem, had fuel just no spark. I missed a wire to the ignition, swapped it and BOOM! started right up.

[iloverbpowers]

Same Problem but not quite as my fuel pump stopped working? it wont prime.

Can anyone take a picture of where abouts is the ignitor on an rb20e or if they could explain exacly where it is id really appreciate it

EDIT: ive also tried the Coil to sparkplug And no spark either

[s13_240_rb20]

Same Problem but not quite as my fuel pump stopped working? it wont prime.

Can anyone take a picture of where abouts is the ignitor on an rb20e or if they could explain exacly where it is id really appreciate it

EDIT: ive also tried the Coil to sparkplug And no spark either

so now you have NO fuel priming and NO spark?? if so, then it is sounding more like your ecu is missing some wires, like power, memory, ground, or IGN.....or if I understand the CAS properly, then your CAS may be bad???

Is your ECU turning on with the key, and if so, check for codes and let us know what it says....

--TJ

[iloverbpowers]

Yes i got no Fuel and no spark

the fuel pump is not priming so when you turn the key you hear no bzzzzzzzzInjectors are firing so i know the ecu is workingand every plug is plugged in into ecu it only had 4 of them but the thing is

its the same loom as was used on previous enginenothing has been unplugged or changed there only engine came out and was replugged in..which leads me to believe its something to do with a ground somewhere or some wires being the wrong way around..?Because its exacly as it was accept engine and gearbox was changed ..thats it no electrics rewired accept a few plugs like distributor and water temp censor

where is the CAS? and what does it stand for?

[s13_240_rb20]

Ok..first question. Please state which engine was engine there and which engine you swapped in. Did you have to swap the ECU as well??

I may be making a fool of myself, but I don't think you have a distributor. Doesn't yours run off of coil packs and an ignitor??

And your fuel pump should be an easy temporary fix. Hotwire 12v to a switch directly to your fuel pump wiring plug in the hatch if you can. That should atleast get you some fuel while you are troubleshooting your no-start issue. Or it will confirm if your pump has gone out.

--TJ

[iloverbpowers]

Rb20e single cam was the motor originally in the car same year as the car 1989

the new motor is a Rb20e single cam is out of a skyline 1998 i said this in first post? the thing is thatNothing was unplugged or replugged exept the fuel line and Air flow meter and fuel rail and 3 fusebox connections to transmission and starter and alternator.
Modified by iloverbpowers at 11:39 AM 11/23/2009

[craz4240]

My guess is you will have to use the r33 ecu, and splice the r33 harness to your stock dash harness for it to work right.

[iloverbpowers]

hmm well il let everyone know tomorrow afternoonas getting it towed tomorrow at 10 am to auto electrician let them sort it out...i cbf with it...gah...it annoyed me way too much

[s13_240_rb20]

did you look at your new motor and old motor ignitor, to see if they are interchangeable? if they are, you can use your old motor ignitor and see if it sparks. Your ignitor is probably black, with a grey heat-dispersing bottom (I can't think of the word right now). It will probably be on top of your spark plug cover at the very back. Probably bolts onto the spark plug cover. It will probably have its own ground and will have about 2 plugs on it. I keep saying probably but that's cuz I am only familiar with my RB20DET.

I google searched "rb25det ignitor" and get this image. My rb20det ignitor is a little different, and yours may be a little different, but your should be looking for something like the pic below. Is it all plugged in??



just remember, you can always hot wire your fuel pump to a switch if it comes down to it and you can't figure out that wiring problem. Hotwiring it, will also let you know if your pump is bad: if the voltage and ground are there and the pump still doesn't work....

--TJ

[iloverbpowers]

Okay got her running 200$

for the work

was some wires broken inside loom

now problem has occured

oil starved engine as i can see

its at half wayand the engine has a oil pressure light constantly on..

could this be to the oil amount being half way? or do i feel a really bad day coming on?>

Engine and gearbox sat for 4 months ..