demahfahbun106

OK heres the story ive been workin on my 87 turbo II for about 4 months now and still nuttin.. i have a 87 j-spec motor and a walbro, and wen i try startin the car it jus cranks....I am gettin fuel yes but now out of no where i am not gettin spark... but i changed the coil packs recently.... why wouldnt i be gettin spark?????? also is there a fuse inside of the car that would have anything to do wit it?? my pump works and i am gettin fuel i checked the coil packs and the were not givin off any spark sooooo... any help would be gladly appreciated.. thanks in advance because you guys have helped me before...thanks again..

vipers

iTrader: (8)

there is a main fuse in the car...... i had the same problem, and i tried everything..... it ended up being that fuse!

jenkin

iTrader: (2)

had similar problem, worked on it for 3 mos, turned out to be MAF.

Aaron Cake

iTrader: (1)

Download a copy of the Factory Service manual or get the Haynes manual. Check the wiring diagrams to verify that you have 12V on the appropriate wires at the coils (black/yellow). After that, test the CAS. If the CAS works, and you have 12V on the coils, you should be getting spark as long as the ECU and wiring is in working order.

The AFM doesn't have anything to do with spark. The ECU will happily produce an ignition signal without it (I have done this).

demahfahbun106

b4 i went away i had spark but then i didnt have fuel, now i came back and i fixed the fuel problem but now no spark...the fuse under the hood is good. all of them, i even changed them too jus to b on the safe side.. wat else is there to check? any fuses inside of the car?

Hellkat

make sure u have everything grounded. the engine harness has wires u connect to the block itself. also make sure ur firewall is grounded to your engine block. If u have a ohm meter, touch the chassis (unpainted )of the car and ur engine block and see if u have continuity. if not it means ur engine block is not grounded properly and you would not get spark.
1 thing more, make sure u have a good amount of fuel in ur tank sometimes its just low enough to get air in the pump making it lose pressure.

demahfahbun106

i have ground from all over, the body the motor even the wire for the coil pack by the battery but still nuttin.. wats going on??

Aaron Cake

iTrader: (1)

Have you tested the CAS? AFM? Checked all the connections? Is the harness in good shape?

You WILL get spark if the ECU has power, the CAS works and the coils are connected.

You WILL get fuel if the AFM works, the ECU works, the injectors have power, you have fuel pressure and the CAS works.

demahfahbun106

Everything works, i checked the black yellow wire for the coilpack and dere is 12 v's but like i said b4 i went away i was gettin spark all the time but my problem was no fuel... i solved that problem by gettin the injector resistor pack located under the AFM, my car neva came wit one cause i bought it from a guy dat was doin a 20b swap so he took that out along wit the motor gearbox and fuel pump... now i am gettin the fuel but no spark.... all i did was plug in the resistor pack...the wiring is good everything should be good..i got all my stuff from my friends car he junked it, it had a fresh motor and gearbox..car never had a problem.

Aaron Cake

iTrader: (1)

I'm not going to answer in PM. I'll post the answer here so everyone can see it.

Have you tested the CAS yet? I've suggested this twice now.

If the previous owner was in the middle of converting to 20B, he may have disconnected/cut anything. You need to go over the entire harness and make sure nothing else is unplugged.

Therx7ist

If you're not willing to to bust out a DMM and test, you are just wasting your time.

demahfahbun106

Aaron Cake....Like i said B4...i was always gettin spark.. ALWAYS u say i'm not testin but i am.. wen i crank the car the CAS turns.. I was always gettin spark B4 now i am not... like i said b4 da problem was fuel now its spark but like i said i checked everything and they work.. maybe its the coil packs??? maybe dey went bad. alway i have been willin to do any and everythin for this car since july so i'm not wastin anythin.. not tryin to b rude or sound a certain way i'm jus tellin it how it is

Icemark

Man I can't stand people that can't even use the Queen's own English, makes it next to impossible to even read.

Have you used a muti-meter yet??? have you tested the CAS???

The odds of the coil packs being bad are around 10000 to 1.

The odds that something(s) is/are unplugged are like 2 to 1.

The fact that you are not testing and just saying that it used to work (if I am understanding your patois english) means nothing.

demahfahbun106

ok so den since u keep tellin me to check the cas can u tell me wat to do den?? so i can do it right now and come right back and tell u wat happens? wat could b unplugged? Oh and i do have a mulitmeter...

demahfahbun106

Is there a plug for the CAS??? and where?

Icemark

at the CAS

iceblue

If I read the word den again I am going to shoot someone!

demahfahbun106

the cas is plugged in. but still nuttin. i'm abou to pay sum1 to come fix it.. any takers?

Therx7ist

you should just get your copy of the FSM and start checking everything. Go to the passenger side of your car and pull the carpet back to get to the ECU. Start testing pin outs and see if they correspond to what the FSM says. AAron has already outlined for you what you need for spark and fuel. In addition, I would go out and get a couple LED's from radio shack and make yourself a code tester. The code tester may not help you in this particular situation, but believe me, you are going to need one. Short of that, I work in the bronx. If you can't get it running soon, I may take you up on your offer.