b18crx

iTrader: (3)

well i searched for about an hour and nobody had a situation that seemed close to mine anyways heres whats going on:

i am in the middle , or actually end of my swap i have my s5 TII motor in my 91' N/a car and for some reason have no spark.....and for fuel i have to use the jumper to get the pump going, im using N/a coils but im told that doesn't matter, so can anybody help me? please let me know asap thanks -mike

Eric'sNoPistons

check thesen. most of the time that the prblem and its very easy to fix

Icemark

coils are the same regardless of if they are on a Turbo car or not.

Why do you think you are not getting spark???

Eric'sNoPistons

im pretty sure its thesen. check it. trust me

b18crx

iTrader: (3)

thesen???? please explain this maybe a pic. thanks

icemark- i pulled the coil wire from the block then plugged a spark plug into it and showed no spark for any coil wires using this method. thats why i say i have no spark, is there another way i should check to be sure? man your only across town from me lol come help me!! that is if your not too busy =D

iceblue

This happend to me on my swap. Icemark and Wayne88N/A said the only things that contribute to no spark and fule is the CAS and the ECU. Are you getting fule? Are your coils grounded well? Try adding another body ground cant hurt. Unless you messed with something the swap has nuthing to do with the fule pump not pumping. How did you test that it is not pumping? Check the resistance with a multi meter of the CAS and see if it is good the only other thing I can think of is the gear in the front housing cover that spins the CAS can be dead too. Doubt its this thow. Maybe someone ells has some more nfo for you good luck.

b18crx

iTrader: (3)

i know im getting fuel i can hear the injectors, how do i add a body ground and make sure the grounds are good on the coils.

the only thing that makes me say the pump isn't on is i dont hear it prime so i am just hooking it up hot til i figure the rest of this out. thanks -mike

oh and by hooking it up hot i mean i am jumping the small yellow connector by the passenger shock tower.

iceblue

The pump only pumps wile cranking or car is on. The way to test is pull off the fule line and crank and see if gas comes out. If not bad wireing harness. This is a good time to rewire it and ground it beto as well you can wire it now to come on when key is turnd to on. Search on fule pump rewireing.

If your getting fule and not spark I would look at the CAS and ground on coils.

TO ground coils take them off the mounts and make sure the metal for bolts and all are al lclean and nice and tuching the body well. Now take like a 8GA wire and put 2 eye loop conectors on it. Finde a place on the body you probly have a spare stud laying around or soforth and grind it to bare metal and screw the eye loop to the body and th other eye loop to the battery negative.

Check the cas if it is timed properly pull it out and align the punch dot on the gear to the line on the CAS shaft. Place it back in carefull not to turn the gear. Now use a multi meter to check the resistance of the CAS to see if it is good. Now see if you got spark.

To check spark use amulti meter on the coils. It is not good to test by grounding them but can be done.

All resistance ohms are located in the FSM or haynes manul if you cant finde them post again and I will look it up for you.

b18crx

iTrader: (3)

man thanks you have been a lot of help i have one little stupid question before i start trying all this ......what is the single yellow wire on the coil supposed to plug into? this could be my problem(smacks forehead). thanks again for your help. -mike

1SxyRXy

anybody else

MARTIN

there are a whole mess of threads on no spark, I even replied to a few of them. This is the most common mistake while doing a swap. The most likely answer is, that you need to connect all the grounds on the harness. There should be a ground connector, it has 2 black wires with a round, hoop type, connector on it. YOU NEED TO GROUND THIS WIRE. should be on the side of the harness where the injectors are...

b18crx

iTrader: (3)

hmmm ill take a look.....any chance you can get me a pic of that so i know exactly what im looking for??? thanks for the input. -mike

MARTIN

I believe that there is only of them, but if you find more than one wire with a hoop connector, then just ground it...ATleast I know for sure, that only one of them affects the ecu..

b18crx

iTrader: (3)

i assume you are talking about the engine harness...if so then yea i have that hooked up. any other ideas?

MARTIN

how exactly did you check for spark??? did you move the cas around or did you have someone crank the motor while you checked. Did you check both leading and trailing ??

b18crx

iTrader: (3)

i pulled the coil wire from the block then plugged a spark plug into it and showed no spark for any coil wires using this method. thats why i say i have no spark, is there another way i should check to be sure?

pinkfloyd

this is what happend to me......there is a ground ont eh driver side in the engine bay between teh strut tower and the break booster. It is actully 5 grounds in one, there should be a gold peice screwd into the side of the car and connected to a connector thingy on the harness. Sorry for so little detail

MARTIN

how did you try to get the spark? by starting the car? or by moving the cas? which is basically the same thing.

HAILERS

The ground for the ECU is on top of the engine. It's a two wire ring terminal and is bolted to the rear rotor housing. It's about two inches to the left of centerline. Someone else already mentioned this. This terminal MUST be attached to the rotor housing.

IF you know how to install a cas, you might try the following. If you don't know how to stab a cas, then you might try a spare cas if you have one: PULL the cas out of the engine. Leave the electrical connector on it. Turn the key to ON. Spin the bottom gear on the cas. If you have a sparkplug wire laying on the fender it WILL spark, proving that you did indeed have spark in the first place. This method does not require the starter to turn the engine over and saves the starter and wear on a engine.

I suggest this because YOU said you could hear the injectors. Trust me, if the injectors are clicking the coils should be a sparkin. Normally the coils don't go bad and the mating of the coil assy to the chassis IS the ground for the coils and is MORE than good enough for a coil/ignitor ground.

You might not have seen a spark at the sparkplug because the starter was putting a large load on the electrical system keeping the spark down. Do the cas thing above where there will be hardly any load on the electrical system.

Just in case you didn't really hear the injectors, you might take a moment to look at the EGI COMP and EGI INJ fuses in the engine compartment to see if they are good. And if you have a meter, turn the key to ON and then pull the small, two wire connector off the LEAD coil assy and see if there is 12vdc on the black/yellow wire there. If there is voltage then you know that the MAIN RELAY is pulled in.

Are you sure you plugged in all the connectors for the EMISSIONS HARNESS after you installed the engine? Sure? Plugged in all the way?

b18crx

iTrader: (3)

by cranking the car over trying to start it.

Daniel577h

did you have the spark plug grounded? it needs a ground in order to jump the air gap

iceblue

Ok I will try to help again. are you using a JDM harness? The CAS plug and the ECU are different. The USDM cars have a CAS plug built into the body harness.

You want to use this one and a USDM ECU such as n332. If your injectors are clicking it is a good sign it is good but does NOT mean it is. Your coils get grounded from being bolted to the body, you can run a new body ground form the battory just incase to ground the frame up some more. Puting the spark plug wire or wire with plug neer a ground and looking for spark will work but is not proper way of doing it and can lead to damaging your coils. The proper way is to use a muli meter. Or use a test plug. Easy way here. Get a test plug put it in one of the wires, clip the test plug to a ground. Now take a 19mm socket and rotate the main drive pully slowly till the yellow mark lines up to the guid pin. Now unscrew and pull out the CAS. Turn the key to the ON position and turn the CAS gear by hand and you will see it sparking. Now align the dimple to the guid line on the CAS and plug it back in without leting the gear turn at all.

If you have no spark use a multi meter or test light on the coils make sure there getting power. Make sure your wires are good. Engin harness is grounded properly and all grounds are grounded. If no spark still. Bad CAS or bad ECU