sbass10

I need to find out what cars other than an actual 1985 rx7 has the same control module for the ignitionl. I just bought the car and have to replace one of the control modules in order to get it back to indiana. I'm going to junk yards tommrow to try and find one, but i'm not sure what other cars if any have the same module i need? any help will be much appreciated

FirebirdSlayer666

iTrader: (3)

Are you talking about the ignitors on the side of the distributor? If so then any 12A(carbed) RX-7 from 1981-1985 used them. They are J-109 ignitors

blackdeath647

iTrader: (2)

is that the same thing as ignitor? it is a j-109 ignitor any model should have it between 81-85...83-85 to be in the safe side (there's 1 year they had a diff. dizzy and the ignitors where j-105 but can't remember if it was 80 or 81)

they are hard to find tho, hopefully you'll luck out at the junk yards, some forum members have them for sale used, (new i think they're atleast 100+ bucks) usually between 20-60 bucks used.

If nothing else, you can go to autozone w/e and ask for a GM 4 prong ignitor (usually found in 70's chevy's in case the person at register is being a total dick) they're about 17 bucks each. Set your working ignitor to your leading side, and on the trailing follow this link http://www.needfulthings.net/cgi-bin...ST;f=77;t=1511 you will need some wire, mounting plate, quick connects, pliers, heat sync grease(sometimes you get a pack of it with the ignitor, but it won't hurt to have extra), a couple of bolts and nuts, wire strippers, and somewhere to mount your mounting plate lol......this works as a quick fix in case you can't find any j-109's and you need to move your car fast. plus it will get you started so that you can do the DLDFI system if you want to ...if you need pics let me know.

sbass10

the part im looking for is JA1098. Control Module-Ignition

here is a link. http://www.autozone.com/R,1309125/ve...ductDetail.htm

blackdeath647

iTrader: (2)

yup ignitor (J-109) read what i posted above.

FirebirdSlayer666

iTrader: (3)

Yeah that's the ignitor. You can run on a leading ignitor only but it would kinda rough and you won't have a tach

bad 83

iTrader: (3)

If your running on the leading only, the car will run fine but no tach. If your running on the trailing only, the car will run like crap and have no power but the tach will work. You can find some guys around here with good used ones any where between $20 to $50 bucks each.

Rx-7Doctor

iTrader: (13)

For all those that posted that a 85 will run with just the leading ignitor-

https://www.rx7club.com/showthread.p...uel+pump+relay

It's the 81-83 that will run with just the leading ignitor.

FirebirdSlayer666

iTrader: (3)

Well that would explain why my 83 ran on one ignitor! Good catch Doc

sbass10

i appreciate it guys ill check into that link. but if i cant find a used one at a junk yard ill just do it like that. If i order a new part from auto zone its gonna cost $165. As well as taking 2-3 days, and i need to get home.. but will they have the GM 4 prong igniter on stock?

blackdeath647

iTrader: (2)

oh yeah, and if autozone for some odd reason doesn't have it advance auto/o'reilley's or any other auto parts store should lol.

oh and yes 84/85's fuel pump is connected to the trailing, so you need trailing

bad 83

iTrader: (3)

Thanks Doc. Didn't know that one!

trochoid

iTrader: (6)

Since you didn't say where you've broke down, post in the regional forum where you're at now. Hopefully someone local can help you out. Paying new price is absurd, converting to the GM HEIs may be more work than you want to do the road. In a pinch, it may be possible to move/jumper the tach/fuel pump wire, (yellow w/green stripe) from the - side of the trailing to the - side of the leading coil. Simpler option would be to jumper the fuel pump relay under the dash so the pump is always on when the key is on. That should give you fuel but no tach.

There is a thread on how to jumper the 'evil relay'. Try searching the archives first for 'evil relay/ fuel pump relay', then this sub forum.

Here's a link to the online FSMs. Wiring diagram is in the 85 FSM, Sec 50, diagram B-1, page 50 :14.

http://www.wankel.net/~krwright/cars/rx7/manuals.html

sbass10

actually i ended up buying the part from o'reillys. It was more than i wanted to spend but it was the quickest way i could get it. So ill be on my way home today after i put the control module in and flush out the engine coolant.

blackdeath647

iTrader: (2)

make sure you add that heat sync stuff or you might burn out your ignitor.