CHIM Posted May 2, 2005 Share Posted May 2, 2005 ok, just got my 84 turbo running, Used a motor out of another 84 wagon with 84.000 on the ticker. Was running great! Yesterday i went wheelin the the guys and the problems started. I was driving this car nice, being really easy on it. Ok, first thing it started doing was it wouldn't idle at all, Had to hold it wide open to start and keep running, The moment i let off the pedal it would die. Any i found a vacume leak and now it idel's , Put loaps during idle,of and onn like it's going to die then back to normal, very quick tho, takes about 1 second to die down then back to normal, and will do it constantly! Now if i let it run a few min. this way when i press on the throtle it will speed up juat a little and load harder and will not exelerate. If i shut the car off and start it up wide open it's fine till i let it down to idle, press the throtle and same thing. ECU light works but never comes on, When i press the throtle it loaps harder and starts puffing black smoke, running really rich. Any ideas?, this is my only running car and i need to get it taken care of ASAP! ~CHIM~ Link to comment Share on other sites More sharing options...
carfreak85 Posted May 2, 2005 Share Posted May 2, 2005 Check for vacuum leaks and make sure the fuel pump connector is plugged in all the way. Other than that, I'm stumped. Do you have a FSM or Turbo FSM supplement? Link to comment Share on other sites More sharing options...
CHIM Posted May 3, 2005 Author Share Posted May 3, 2005 I checked for all vacuume leaks, found none, Not sure what a fsm is tho. Another problem, when spooled hard the turbo shrils, kinda like a loose fan belt then cuts out until i shift to a higher gear What do i do? I need this car to work! Link to comment Share on other sites More sharing options...
Ross Posted May 3, 2005 Share Posted May 3, 2005 FSM is a Factory Service Manual. The turbo should not make a loud sound - sounds like it needs some work. I also don't know about your other prob.... I suggest you take out your spark plugs and examine them to find out if all cylinders are running bad or if its just some.... Just to clarify, if you start the car without letting it idle, it will run fine? So its fine untill you let it idle? Is that what your saying? Link to comment Share on other sites More sharing options...
CHIM Posted May 3, 2005 Author Share Posted May 3, 2005 Ok, let me try this again. If i start it normal it will idle fine now,if i try to exelerate it will load up and start missing but will not raise in rpm at all. If i start it with the exelerator pedal on the floor it will start and rev all the way up, but i have to keep it reved up to drive it, if i allow it to drop below 2800 rpm it will still run but will not speed up when i press the pedal. FSM is a Factory Service Manual.The turbo should not make a loud sound - sounds like it needs some work. I also don't know about your other prob.... I suggest you take out your spark plugs and examine them to find out if all cylinders are running bad or if its just some.... Just to clarify, if you start the car without letting it idle, it will run fine? So its fine untill you let it idle? Is that what your saying? Link to comment Share on other sites More sharing options...
MSSLGECKO Posted May 3, 2005 Share Posted May 3, 2005 hmmmm. . . . strange problem. I had something sortof similar happen. Sometimes my car would do some sort of fuel cut (I think) When it was doing this, it would either shut off, or struggle to hold idle. When it was struggling w/ idle, it would die if I pushed the gas. I took it to my subaru mechanic who looked over it, put a new fuel filter on and said it was fine. It works fine, but every so often it'll happen and go away. Check your fuel filter (?) See if replacing it helps. Link to comment Share on other sites More sharing options...
CHIM Posted May 3, 2005 Author Share Posted May 3, 2005 Ok, I think my turbo might be going out, I have the opertunity to get a EA82 turbo charger. What i would like to know is will a EA82 turbo fit a EA81 motor?, Bolt up to the down pipe?, cross pipe? And how would i go about hooking the plumbing up for water cooling since my EA81 doesn't have water cooling. ~CHIM~ Link to comment Share on other sites More sharing options...
Turbone Posted May 3, 2005 Share Posted May 3, 2005 Throw the EA81 Turbo away and get the EA82 Turbo/Downpipe/X-Over pipe(header). All this is pretty much a bolt up deal, altho the header bolts might be reversed. You will need to remove the studs and swap them over to the other holes. The water cooling lines might be a hassle too, seeing how yours was never upgraded by the dealer. You need to tap into the heater return hose (I think) and route a return line also. Link to comment Share on other sites More sharing options...
carfreak85 Posted May 3, 2005 Share Posted May 3, 2005 This just crossed my mind, check your spark plug wires and make sure they are going to the correct cylinders. Link to comment Share on other sites More sharing options...
Ross Posted May 3, 2005 Share Posted May 3, 2005 Coolant supply is from the drain bung on the head via a hard line. Link to comment Share on other sites More sharing options...
Ratty2Austin Posted May 3, 2005 Share Posted May 3, 2005 the sound your hearing is the turbo bearing worn out, and the shaft is loose in the bearing.. its ocillating when it hits a certain speed (turbine rpms) which also means you are probably dumping oil into your intake which is choaking up the motor.. take off the turbo intake plentum, and see if there is a lot of oil in there on your throttle plate and such.. replace turbo with EA82 T unit and piping is an upgrade, but you will be without a car for a while, and it also sounds like your ECU does not work properly either (Mr Carbs turbo is broken in the similar way too) Link to comment Share on other sites More sharing options...
CHIM Posted May 3, 2005 Author Share Posted May 3, 2005 the sound your hearing is the turbo bearing worn out, and the shaft is loose in the bearing.. its ocillating when it hits a certain speed (turbine rpms) which also means you are probably dumping oil into your intake which is choaking up the motor.. take off the turbo intake plentum, and see if there is a lot of oil in there on your throttle plate and such.. replace turbo with EA82 T unit and piping is an upgrade, but you will be without a car for a while, and it also sounds like your ECU does not work properly either (Mr Carbs turbo is broken in the similar way too) Yeh, now that i think of it i did see a bit of oil in the intake plentum, Ok the turbo sounds easy. I'll be replacing it tomarrow. My firing oreder is correct, Like i said it was running "PERFECT" yesterday, shuter down and the problem's started. I had a few people tell me that the exhaust was plugged but i have plenty of presure at the tail. Could a bad turbo cause it to run poorly at idle?, Persoanly i wouldn't think so but then again i know nothing about FI or Turbo. If the ECU was bad would't the light come on? ~CHIM~ Link to comment Share on other sites More sharing options...
naru Posted May 3, 2005 Share Posted May 3, 2005 I had a few people tell me that the exhaust was plugged but i have plenty of presure at the tail.~CHIM~ I think they might be right.It is just not completely plugged.Regardless,you can tell if the exhaust is plugged w/the dash vacuum gauge. Link to comment Share on other sites More sharing options...
CHIM Posted May 3, 2005 Author Share Posted May 3, 2005 I think they might be right.It is just not completely plugged.Regardless,you can tell if the exhaust is plugged w/the dash vacuum gauge. Dash vacuume gauge?, is that suposed to be somthing my car has?, I have a digi dash, No vacuume tho. ok, i have another question. Would a ECU out of an 84 turbo coupe work in my wagon?, Just to see if it is ECU related. I don't really have the funds to have custom exhaust made up for my wagon, If i did my own exhaust does a turbo have any problems with a low to little back presure set up?, And what about the senser in the cat?, does it have to be there or can i get away with straight pipe from the turbo to the tail. Damn, if it weren't for you guys i don't know where i would be rite now....................No i think i do, My car would probly be at the bottom of a clif rite now with bullet holes all thrue her. Thank you guys for your help so far, Can't wait to jump again to see what else you guys have for me, Hopefully i get this thing running like a subie is supposed to. ~CHIM~ Link to comment Share on other sites More sharing options...
naru Posted May 3, 2005 Share Posted May 3, 2005 Dash vacuume gauge?, is that suposed to be somthing my car has?, I have a digi dash, No vacuume tho. Analog dash only. ok, i have another question. Would a ECU out of an 84 turbo coupe work in my wagon?, .~CHIM~ Yes,it would work. Link to comment Share on other sites More sharing options...
Ross Posted May 3, 2005 Share Posted May 3, 2005 I don't really have the funds to have custom exhaust made up for my wagon, If i did my own exhaust does a turbo have any problems with a low to little back presure set up?, And what about the senser in the cat?, does it have to be there or can i get away with straight pipe from the turbo to the tail. Your car will run fine (probably better than ever) with no significant back pressure. The sensor in the cat is a temp sensor that tells you when your cat is overheating, so you don't really need it, especially if you have no cat. Link to comment Share on other sites More sharing options...
CHIM Posted May 3, 2005 Author Share Posted May 3, 2005 Your car will run fine (probably better than ever) with no significant back pressure. The sensor in the cat is a temp sensor that tells you when your cat is overheating, so you don't really need it, especially if you have no cat. Ok, what about the little sensor in the spare tire holder just abouve the turbo? Do i need that? I unhooked the purge canister for the fuel tank yesterday and there was no difference in the way it ran, can i get away with that as well? Link to comment Share on other sites More sharing options...
carfreak85 Posted May 3, 2005 Share Posted May 3, 2005 Ok, what about the little sensor in the spare tire holder just abouve the turbo?Do i need that? I unhooked the purge canister for the fuel tank yesterday and there was no difference in the way it ran, can i get away with that as well? That little sensor is the ambiant temp sensor and yes, you need it for the ECU. The purge canister wouldn't affect your running and you might as well leave it in if anything. Link to comment Share on other sites More sharing options...
EA82Turbo Posted May 4, 2005 Share Posted May 4, 2005 Hi I had one of these engines for a while that had similar problems. Eventually I fixed it by setting the timing to about 22-25 advance. These engines don't have alot of torque and run badly without boost. Slow engine response from the pedal at low revs is probably normal, more advance on the timing will help. Could also try a better coil and opening the gap on the sparkplug. These changes help to ignite the fuel. I think the engine is getting more fuel than it can burn and choking on it. But i'm not even close to a mechanic so others may wish to comment. Cheers Hayden Link to comment Share on other sites More sharing options...
CHIM Posted May 4, 2005 Author Share Posted May 4, 2005 Hi I had one of these engines for a while that had similar problems. Eventually I fixed it by setting the timing to about 22-25 advance. These engines don't have alot of torque and run badly without boost. Slow engine response from the pedal at low revs is probably normal, more advance on the timing will help. Could also try a better coil and opening the gap on the sparkplug. These changes help to ignite the fuel. I think the engine is getting more fuel than it can burn and choking on it. But i'm not even close to a mechanic so others may wish to comment. Cheers Hayden Acculy, this thing when it was running good had ALOT of torqe and very good response, I expected a turbo to have more power than carbed but this thing had alot more than i expected, VERY FAST! when it was running good. Ok guys, i replaced the ECU with a different one with no changes, still running like ************! I picked up another turbo (EA82) , needs rebuild so i will be doing that soon. Does anyone know if this thing will increase power?, As soon as i picked it up i noticed that the ea82 is much larger, Bigger fins on the fan thingy. Ok, changed the ECU, New Plugs,new coil..........What next? Link to comment Share on other sites More sharing options...
carfreak85 Posted May 4, 2005 Share Posted May 4, 2005 The EA82 turbo might make a little more power, but mainly its more efficient. Did you change the fuel filter? Link to comment Share on other sites More sharing options...
Ross Posted May 4, 2005 Share Posted May 4, 2005 When you changed plugs, did they all look the same, or were some blacker/greyer/whatever? Link to comment Share on other sites More sharing options...
Cougar Posted May 4, 2005 Share Posted May 4, 2005 If you have a carburator on this engine I would check that. Link to comment Share on other sites More sharing options...
CHIM Posted May 4, 2005 Author Share Posted May 4, 2005 When you changed plugs, did they all look the same, or were some blacker/greyer/whatever? They where all black, to rich is what i got out of it. If you have a carburator on this engine I would check that. I would check the carb if it had one, it's FI. I will be changing fuel filter tomarrow but i seriously doubt thats the problem, when i press the throttle to the floor it exelerates fine. IM LOST GUYS!, I love the car,Ineed the car............................................................ . To those that have or have worked on these motor's, Is this motor somthing i am going to need to work on constantly or is it supposed to be as reliable as a EA81 N/A? Link to comment Share on other sites More sharing options...
Steveman09 Posted May 4, 2005 Share Posted May 4, 2005 This sounds like its the Mass Air Flow Meter/Sensor to me. Try unplugging it, then start it and see if it idles. I'm willing to bet this is your problem. When MAF's go haywire they cause the exact symptoms your having. Link to comment Share on other sites More sharing options...
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