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Help trouble shoot my problem.

I don't think its the ecu. I cleaned off a couple of the spark plugs and it tried to fire, albeit roughly and unsuccessfully... New plugs on order.

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Old 05-04-2014, 05:51 PM   #46 (permalink)
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I don't think its the ecu. I cleaned off a couple of the spark plugs and it tried to fire, albeit roughly and unsuccessfully... New plugs on order.
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Old 05-04-2014, 06:30 PM   #47 (permalink)
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If the plugs are totally fouled, it's possible that this is the problem -- good luck.

I'm still leaning towards bricked ECU and or wrong ECU ROM flashed on there (assuming that can even happen -- don't know if it would just reject it if not a match).
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Old 05-04-2014, 07:01 PM   #48 (permalink)
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Originally Posted by Jordo! View Post
If the plugs are totally fouled, it's possible that this is the problem -- good luck.

I'm still leaning towards bricked ECU and or wrong ECU ROM flashed on there (assuming that can even happen -- don't know if it would just reject it if not a match).
Wrong rom isn't an issue unless it is an auto rom on a manual or vice versa By that I mean it would still start if the NATS is happy or disabled.
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Old 05-04-2014, 07:41 PM   #49 (permalink)
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Quote:
Originally Posted by Tombonombona View Post
I don't think its the ecu. I cleaned off a couple of the spark plugs and it tried to fire, albeit roughly and unsuccessfully... New plugs on order.
The ECU controls the spark. spark timing and fuel delivery.
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Old 05-04-2014, 10:25 PM   #50 (permalink)
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Quote:
Originally Posted by Gary Evans View Post
The ECU controls the spark. spark timing and fuel delivery.
But if it was bricked, then wouldn't everything just cease to function?
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Old 05-05-2014, 01:59 AM   #51 (permalink)
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Quote:
Originally Posted by Tombonombona View Post
But if it was bricked, then wouldn't everything just cease to function?
If "bricked" means totally destroyed then the answer is yes. The suggestion to swap it out may be the only way to know for sure.
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Old 05-13-2014, 06:30 PM   #52 (permalink)
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Update:

I changed out the plugs for R35 GTR plugs and it started right up. Lots of white smoke coming out the exhaust (not coolant, I know what that smells like, damn subarus) I think it was just all the built up fuel and such from trying to get it to start the last little while.

I had it run for a minute but right before I was going to shut it off ( 10 seconds or so ) the idle started to sound like it was just getting a touch rough.
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Old 05-13-2014, 11:41 PM   #53 (permalink)
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Told ya
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Old 05-14-2014, 12:06 AM   #54 (permalink)
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I'd throw away that Jtran tune and get a custom tune at a shop
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Old 05-14-2014, 02:59 AM   #55 (permalink)
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So just fouled plugs then? That's good news!

But why did they get so badly fouled? That means either a tuning issue or something is wildly off on the boost levels your ECU thinks are being run, so it's skewing pig rich under load.
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Old 05-14-2014, 06:28 AM   #56 (permalink)
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I'd throw away that Jtran tune and get a custom tune at a shop
His problems started before that. I completely agree that custom tunes are far superior but keep your bashing to facts
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Old 05-14-2014, 06:40 AM   #57 (permalink)
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His problems started before that. I completely agree that custom tunes are far superior but keep your bashing to facts



Actually, wasn't he unable to get the car to run on the safe map JTran sent up there? So that had zero to do with his problem at all and the issue was fouled plugs and whatever fueling issue caused that kind of fouling?
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Old 05-14-2014, 06:58 AM   #58 (permalink)
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Actually, wasn't he unable to get the car to run on the safe map JTran sent up there? So that had zero to do with his problem at all and the issue was fouled plugs and whatever fueling issue caused that kind of fouling?
I know us engineers don't read too well but .
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Old 05-14-2014, 11:36 AM   #59 (permalink)
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Old 05-14-2014, 08:36 PM   #60 (permalink)
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I'm thinking of maybe putting it all back together. Putting some new fuel in it, taking it out and giving it a bit of a workout, get some nice high temps in the cats and such. Thought?
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