LPGsuperchargedBrumby Posted February 7, 2006 Share Posted February 7, 2006 The coil on my brumby died, it got so hot that it was smoking, then gave up the ghost completely, so i replaced it this morning.It also blew the ignition fuse. Now the fun begins..... When i tried to start the motor after installing the coil, it would rev to mid-high rpms then the rpms would drop back to nearly nothing then rev up again all while the throttle was held wide open. this would happen 20-30 times in a row till it failed to recover and rev up again or i turned it off I took the disty off and got it tested, thinking that disty module was fried as well,but it tested fine,reinstalled disty..problem still there. i've never run into this problem or even heard of anything like it Link to comment Share on other sites More sharing options...
LPGsuperchargedBrumby Posted February 7, 2006 Author Share Posted February 7, 2006 bump Link to comment Share on other sites More sharing options...
azsubaru Posted February 7, 2006 Share Posted February 7, 2006 I can't say I've seen that on a Subaru, but my Honda Accord did exactly that when the speed sensor went out. I was able to drive home as long as I kept the rpms down below 3K or so - which wasn't easy. Also, I read on this board that Sub distys can test good and still not work. Link to comment Share on other sites More sharing options...
LPGsuperchargedBrumby Posted February 7, 2006 Author Share Posted February 7, 2006 my understanding is that distys either work or don't not half way inbetween Link to comment Share on other sites More sharing options...
Ross Posted February 7, 2006 Share Posted February 7, 2006 my understanding is that distys either work or don't not half way inbetween So they say, but when the ignition module on my ea81t started failing, it would run fine 90% of the time, and cut out randomly every now and again. Has the amplifier been checked? Is this an ea82t? Link to comment Share on other sites More sharing options...
azsubaru Posted February 7, 2006 Share Posted February 7, 2006 Here's the thread - knew I had seen it on here somewhere: ... a distributor can test fine but still cause the car not to start. there is no definitive way to test a distributor, usually you can, but there are times when you can't (i've had it happen twice). long answer follows: i've had a distributor generate spark but not work properly. less than a month ago there was a thread about this and we went through all this before so if you're interested in that discussion do a search. mostly about the problem i'm about to talk about being "impossible". but to be quick i've had two distributors fail in different subaru's that would generate spark, even pass the FSM tests but still the car didnt' start. couldn't resolve the problem until i finally swapped the distributors and it started. both times it didn't fail while i was driving, i had taken the car off the road for a couple weeks/months for repair or swaps and the previously fine running vehicle and distributor failed to start the car. my guess is the crank angle sensor gets corroded or out of alignment somehow. that being said, there was no proper (practical) way to diagnose mine. i'm sure with some crazy computer/oscilloscope set up it would have shown up, but who's going to go through all that? Link to comment Share on other sites More sharing options...
naru Posted February 8, 2006 Share Posted February 8, 2006 The coil on my brumby died, it got so hot that it was smoking, then gave up the ghost completely, so i replaced it this morning.It also blew the ignition fuse.Now the fun begins..... When i tried to start the motor after installing the coil, it would rev to mid-high rpms then the rpms would drop back to nearly nothing then rev up again all while the throttle was held wide open. this would happen 20-30 times in a row till it failed to recover and rev up again or i turned it off I took the disty off and got it tested, thinking that disty module was fried as well,but it tested fine,reinstalled disty..problem still there. i've never run into this problem or even heard of anything like it Despite the test,it sounds like you have an intermittent module.Monitor the spark output w/a timing light,inline spark tester etc. as the rpms drop.If spark drops out but coil voltage stays OK it is a disty problem. If you are running an ea-82 the same comments apply to the ignition amp. A current draw heavy enough to smoke the coil could certainly damage either component. Link to comment Share on other sites More sharing options...
LPGsuperchargedBrumby Posted February 8, 2006 Author Share Posted February 8, 2006 So they say, but when the ignition module on my ea81t started failing, it would run fine 90% of the time, and cut out randomly every now and again. Has the amplifier been checked? Is this an ea82t? amplifier? there is nothing on the two signal wires between the coil and distributor if that what you mean... can an ea82 module be swapped with an ea81 module? as i have on ea82 distributor and the module's look the same Link to comment Share on other sites More sharing options...
Ross Posted February 8, 2006 Share Posted February 8, 2006 If the modules look the same they can probably be swapped - i know the ea81t one is the same as the early ea82t one. Link to comment Share on other sites More sharing options...
LPGsuperchargedBrumby Posted February 8, 2006 Author Share Posted February 8, 2006 hmmm....i'll try that Link to comment Share on other sites More sharing options...
Ross Posted February 8, 2006 Share Posted February 8, 2006 hmmm....i'll try that If you end up deciding to buy a new module, Dont pay retail for it! They have a ridiculous markup at parts stores. Retail on the one for the ea81t (4 pin) was around $260, i was gonna get it for something like $90 from my local. But then i bought a whole ea82t disty with the module in it for $40 from a wrecker.... Link to comment Share on other sites More sharing options...
Cougar Posted February 8, 2006 Share Posted February 8, 2006 I would check for any codes in the ECU and see if the MAF sensor is ok. Link to comment Share on other sites More sharing options...
LPGsuperchargedBrumby Posted February 9, 2006 Author Share Posted February 9, 2006 well i tried swapping the distributor module with a known working one...same problem. the coil i killed had 'use with igniter' written on it, the coil i got new to replace it is a 'universal use' (the first one they showed me had 'use with ballist resistor' printed on it,my original coil didn't have a resistor so i said i need one that doesn't need a resistor). what would happen if the new coil i've got is for a points dizzy? what kind of symptoms would show that it is? Link to comment Share on other sites More sharing options...
naru Posted February 9, 2006 Share Posted February 9, 2006 well i tried swapping the distributor module with a known working one...same problem. the coil i killed had 'use with igniter' written on it, the coil i got new to replace it is a 'universal use' (the first one they showed me had 'use with ballist resistor' printed on it,my original coil didn't have a resistor so i said i need one that doesn't need a resistor). what would happen if the new coil i've got is for a points dizzy? what kind of symptoms would show that it is? Dunno,but,I would still Monitor the spark output w/a timing light,inline spark tester etc. as the rpms drop. Link to comment Share on other sites More sharing options...
Ross Posted February 9, 2006 Share Posted February 9, 2006 What is this engine we speak of? Link to comment Share on other sites More sharing options...
LPGsuperchargedBrumby Posted February 9, 2006 Author Share Posted February 9, 2006 ea81 Link to comment Share on other sites More sharing options...
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