gvr4737 Posted November 4, 2009 Share Posted November 4, 2009 I have a 96 Subaru Legacy wagon. 2.2L 5 speed. Everything was running good on the car till last week when it lost power and broke down. Now the car still starts, but runs poorely. When i give it gas it just boggs and dies. also idles rough never had an issue before with this car soo i finally got the CEL to come on and here are the codes p0105 Manifold Absolute pressure circuit p0201 Injector 1 Control Circuit p0204 Injector 4 Control Circuit p0301 Cylinder 1 misfire p0136 02 Sensor Circuit Malfunction soo i figure with throwing all these codes and after checking out all these parts that it is the ecu. soo i took out the ecu. it looked and smelt fine whatever, i got a new one from a place online now my ecu is 2N 22611 AC930 the ecu that i recieved was a 2D 22611 AB414 I put the ecu in the car and it will not start at all does anyone have any idea why this is doing that??? my car is a 96, This ecu i baught was supposed to work for a 5 speed 2.2l legacy wagon 95-97 please help!!!! thanks - Mark- Ps: I also do not know for a fact its ECU but i figured it could be since it threw soo many codes Quote Link to comment Share on other sites More sharing options...
Fairtax4me Posted November 4, 2009 Share Posted November 4, 2009 How many miles on the car? It could be that the "new" ECU is dead. Hard to say though. Will it still start with the old one? All of those are circuit codes except for the misfire code. You could have a loose or broken ground wire somewhere causing the trouble. That would be the easy fix. My first thought was skipped timing belt. Has the timing belt ever been replaced? I'm also always suspicious of vacuum leaks whenever multiple codes show up, or general poor driveability is encountered. There are certain conditions that when present the ECU will cut power to the number one injector, kind of a Failsafe mode, to alert you that there is something seriously wrong and it needs to be checked out ASAP. Try searching those code numbers here on the board and you might come up with some other ideas to check. Quote Link to comment Share on other sites More sharing options...
gvr4737 Posted November 4, 2009 Author Share Posted November 4, 2009 why would u think skipped timing belt??? thats the only thing i didnt think about basically the car starts and idles, but when you rev it it overfuels and like bogs than dies Quote Link to comment Share on other sites More sharing options...
OB99W Posted November 4, 2009 Share Posted November 4, 2009 An ECU tends to be one of the most reliable parts, and would rarely be the cause of multiple codes. I'd suggest reinstalling the original one and see if the engine will start. With so many seemingly unrelated circuit problems, the common factor tends to be power or ground issues. A failing main relay, for example, could cause what you're experiencing. Quote Link to comment Share on other sites More sharing options...
Fairtax4me Posted November 4, 2009 Share Posted November 4, 2009 Timing belt issues are common. They're supposed to be changed every 60k miles, but most people don't know that, or don't ever think to check it. Quote Link to comment Share on other sites More sharing options...
idosubaru Posted November 4, 2009 Share Posted November 4, 2009 All this guessing is going to kill you - slow down. Cat converter is bad, your fuel pump is clogged, you have bad gas, your MAF is flipping out....et.al. First - like OBW says (you'll find he knows his stuff), ECU's almost never fail. Usually caused by improper jumping or some other tinkering. Put your old ECU back in, it's fine. When you have multiple codes standard procedure is to clear them and see which come back. It's telling you codes, start with known issue, it doesn't take long. Cylinder misfire is very common on EJ engines - spark plugs or wires likely need changed. On some occasions one fault can trigger others, so it very well could be that only one or two of those are legit. Quote Link to comment Share on other sites More sharing options...
gvr4737 Posted November 4, 2009 Author Share Posted November 4, 2009 just did wires n plugs Quote Link to comment Share on other sites More sharing options...
gvr4737 Posted November 4, 2009 Author Share Posted November 4, 2009 i did get gas at a shady gas station before this happened... i checked the fuel filter and it is clean.. could the pump be clogged??? should i drain the tank and try new gas Quote Link to comment Share on other sites More sharing options...
gvr4737 Posted November 4, 2009 Author Share Posted November 4, 2009 im gonna go over all my power and grounds tommorow what is the main relay i could try car starts and runs.. just like crap... and wont rev up.. like over fuels Quote Link to comment Share on other sites More sharing options...
Rooster2 Posted November 4, 2009 Share Posted November 4, 2009 You mentioned buying gas at a shady gas station, that could be the source of the problem, particularly if you have had some rainy weather lately. It is easy for a shady place to have bad gas resulting from run off rain water getting past worn out seals on the top of the station's under ground gas tank. Years ago, a cheapie station in my town had this trouble. It resulted in stalled, or nearly stalled cars all over town. Suggest you try adding a can or two of "dry gas" to your gas tank in case this is your problem. Quote Link to comment Share on other sites More sharing options...
idosubaru Posted November 4, 2009 Share Posted November 4, 2009 just did wires n plugs that could be your problem. did you use Subaru wires and NGK plugs? EJ engines are notorious for not being forgiving to aftermarket stuff, i've seen brand new wires cause CEL's and undrivability (nice word for a late night laugh!) if they weren't Subaru wires and NGK plugs - it could be the problem, how soon after this work did you have the problem? again - all this guessing is going to kill you. i sort of tossed the bad gas, fuel pump, fuel filter, catalytic converter all out there to show you the number of possible "guesses" and how that's a bad way to diagnosis a problem. let's start with what we know: your ECU is not bad, reinstall the old one. clear the codes and see which come back. let the ECU tell us what the problem is and start from there. if they all come back, then so be it, but that rarely happens. Quote Link to comment Share on other sites More sharing options...
gvr4737 Posted November 5, 2009 Author Share Posted November 5, 2009 so finally got it to throw a cel again.. it thru the colde p0301 and p 0302 my guess is i have a grounding issue... im gonna buy all new ground cables and re do them anyone else got an idea??? i threw my ecu back in the car for good too starts but runs poorly Quote Link to comment Share on other sites More sharing options...
OB99W Posted November 5, 2009 Share Posted November 5, 2009 With just misfiring codes, what Gary said is a definite possibility. Reread the first two paragraphs of his post #11. What brands of plugs/wires did you use? Quote Link to comment Share on other sites More sharing options...
gvr4737 Posted November 5, 2009 Author Share Posted November 5, 2009 i used ngk spark plugs gapped correctly and oem replacement wires from advance auto... i may still have the stock set i can try if u think this could be it i put probably 200 miles on after wires before this Quote Link to comment Share on other sites More sharing options...
efseiler Posted November 6, 2009 Share Posted November 6, 2009 I had a similar problem with mine... In my case I had to wait for the 'ABS' light to go off before making my dashing getaway... :-) In my Sube it usually takes 4 or 5 seconds for it to go off after starting the engine. Hope that bit helps, Damien Quote Link to comment Share on other sites More sharing options...
Fairtax4me Posted November 6, 2009 Share Posted November 6, 2009 Parts don't count as OEM unless they come from Subaru, and say Subaru on them. Double check that the wires are seated correctly in the coil, and that they are fully seated on the spark plugs. They can be a real Pita to get clicked on all the way. A pair of plug wire pliers is a big help on these. If they're on all the way, and you're positive that they are, switch back to the old wires and see if it changes. Quote Link to comment Share on other sites More sharing options...
OB99W Posted November 6, 2009 Share Posted November 6, 2009 If, as Fairtax4me suggested, the plug wires are properly seated at both ends, then do see if reinstalling the originals makes a difference. The two cylinders that are misfiring (#1 & #2) are ''wasted spark'' paired -- they share the same coil in the pack. A problem with that coil or either plug wire could cause misfire on both of those cylinders. Once you get back to us after checking the ignition wires, we can offer other ideas if needed. Quote Link to comment Share on other sites More sharing options...
gvr4737 Posted November 7, 2009 Author Share Posted November 7, 2009 Nope the front cat exploded and clogged up the whole exhaust fix = gutted both cats and ran a de fouler on the 02 sensor soo its legit Quote Link to comment Share on other sites More sharing options...
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