gabe30

quick question.. i tried searching a bit.. i probably should have searched longer.. but yeah.. im tired and irritated..



so i replaced my engine today.. everything was fully installed.. i tried starting it and it turns but wont turn over.. my exhuast is off so i hear consistant puffs but nothign as an engine firing up.. i check the ignition and leads to find that my leads are fine but my leading ignitor is not producing a spark.. im kind of bad with explanations but can anyone produce a picture to see if i did not wire it up correctly or something. im hoping that the leading ignitor is not wired up so its not producing a spark. before that, my previous engine worked but had a bad coolant seal and so im confident that i just didnt wire something.. or is it safe to say that my ignitor went bad?


aside from that, if my trailing ignitor is firing, would the engine still start? if it does, then could my fuel injectors and such be bad? ive been interested in rotaries for quite some time but im not a mechanic so some of the terms i have to look up and such.. but i know my fuel pump works; we took it out to see if it operates. and it does.. i mean, if its not suppose to turn over then i can understand.. but just curious about it

zenk you

rhythmfunk

Are you getting spark on the Trailing side? If no spark at all, make sure all your connections are plugged in.

Crank angle sensor
fuel resistor if S4
Mass air flow meter
Open circuit relay


Plus make sure the main ground to the injector harness is bolted to block. Its located on top of the rear rotor housing.

If you are getting spark on the trailing, make sure the yellow/black wire on the lead is getting 12v. If your getting 12v at the coil it could be the ignitor or the ground signal to it that tells it to fire.

Start with the easy things, what was unplugged/removed for the swap then go from there.

gabe30

there is a spark from the trailing igniter.. and i know its not a bad lead because i put the leading leads onto the trailing igniter and it still sparks.. so it has to be the igniter..

i dont know if its the same ground.. im pretty sure it is.. when i took off the manifold, there was a ground in the location you are talking about and i know i bolted it down.. so its safe to say that it is correct..

the thing about the swap, i can't remember what was unplugged.. i have a bunch of plugs from the harness and from the leading igniter, but none of which connects to one another.. maybe one but i couldnt find anything else.. so im not totally sure. but i do know the igniter is not producing a spark.. or sparks in this case..

as for the crank angle sensor, fuel resistor (it is an s4), mass airflow meter, and open circuit relay, i dont know which one is which.. =X i just know that majority of the plugs i pulled out while i was disassembling everything, is plugged in. well for the most part.

rhythmfunk

I would start off by checking that black/yellow wire for 12v and check call connections.

It might only take 1 thing left unplugged to cause trouble with these cars, trust me...I have my own troubles.

The injector resistor is under the stock airbox location as is the fuel pump resistor if its a turbo. these are both large round white plugs. The injector resistor I believe has 5 pins and the fuel (turbo model) has 6 pins.

There arent too many plugs on these cars that are left unplugged, but they were smart to properly mark the ones that arent used.

The obvious are the green plugs, plus there are a few you will find a blue tape around. Pretty much everything else has a mate and should be plugged in.

I would look for any unplugged and if in doubt, take a pic and post it. Theres lots of use here that can help you I.D them.

DaBrkddy

Don't forget to check fuses... they do go bad you know..

gabe30

oh i forgot about that.. i was trying to look for the fsm and i couldnt find the diagram for the fuses.. and i couldnt see the diagram where the fuses are.. does anyone have those?

pictures probably might help me more so.. i'll see if i can get a hold of a digi cam tomarrow and start taking snap shots of all the plugs.. i also have a plug under the manifold its a moderatly small sized plug which i couldnt find the mate for it.. i have an 86 gxl so that would help.. i know some of the plugs are purposely unplugged because i didnt want them.. such as a/c, cruise control, and AAS

gabe30

so i was finally able to take some pictures.. i might have overlooked others but this is what i found. note: sorry if everything looks like a mess.. it pretty much is but i was trying to organize it in a way i would remember..


this black plug here.. i couldnt find a mate for it..


this, i think is a vac line, its on the manifold near the firewall side.. and i dont know where the line leads to


this was located below the leading ignitor


part of the harness between the fuses and the leading ignitor


yeah.. no clue.. i just know its near the oil fill and the oil filter


this little one is under the manifold near the ground.. i couldnt find the mate so i pulled it out so i could see it.. this one is a tough one.. im hoping its nearby


umm near the intake and radiator cap thing..

gabe30

bump

kanuk93gt

gonna try to name and # all these for you

working top to bottom on your pics

1. not used
2. vacuum line, not sure, but you could cap it off in case its not used unless you figure it out
3. dunno
4. looks like the leading ignitor plug, but im not sure
5. goes on the back of the dynamic chamber by the bac
6. goes on the firewall by the wiper motor
7. not used

hope that helps
Dennis

gabe30

thanks alot.. i'll check it out this weekend to see if i can get any results

rhythmfunk

I am no expert on NA's and I dont want to disregard others helping, but here my idea of what each connector is.


1. used for external tach when setting timing or testing.
2. definitely a vacuum line, check emissions section of the manual.
3. ?
4. power steering?
5. looks like the intake temp sensor
6. The wiper connector I believe is on the passenger side, looks more like a ground resistor. These are small black squares w/1 black wire coming off it. The square will be bolted to ground.

7. TPS? throttle position sensor.

Again..this is my thoughts off the top of my head as my I dont have an NA.