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No start! Eating computers??
Posted 03 August 2006 - 01:10 AM
He had a new motor put in, and it ran great, the turbo blew and he happend injured himself around that time. SO he asked his friend to put a new turbo in, simple right? No his friend proceeds to tear the entire top end of the motor off and put iy back half assed, we put it back the way it should, but found he maybe screwed with some electrical stuff, mabye somekind of relay. Im not quite sure. The guys calling the guy to find out, and hes gonna get another ECU for it and check some relays and electrical stuff to find out whats frying the damn thing. Its not getting ANY spark now. Theres no Check engine light on the dash ever not even with the key to the ON position.
The owner whos helping me fix it is an Electrical Engineer and mechanic, so he knows his stuff, but this is getting rediculous! 3 ECUs its eaten up. One you put it in, no spark, another no fuel pump running, and the 3rd (one just fried) does the no spark. The 3rd one we had worked great up untill it was running then died, now it has no spark, but the fuel pump works.
Posted 03 August 2006 - 01:38 AM
Posted 03 August 2006 - 02:48 PM
Posted 04 August 2006 - 01:13 PM
Posted 04 August 2006 - 01:29 PM
Posted 04 August 2006 - 01:49 PM
Posted 04 August 2006 - 03:36 PM
PLEASE!!! I am not an expert on this problem by any means. Wealth-of-experience will trump my basic electronics/mechanics any day.
makes sense, the ECU box was majorly hot after having it run, ill havce to check it out, anything else anything wants to add please do, i want this car
Posted 05 August 2006 - 02:35 AM
Another thing you can do is to try and trace the damaged ECU circuit from inside the ECU. By locating the current path that was damaged it will show you which external lead you need to trace and find the problem.
Posted 05 August 2006 - 03:28 AM
Posted 05 August 2006 - 10:36 AM
Your's is an 87.5. The 88 Manual doesn't cover Spider Turbos. They only cover the Spider N/A and the ER27. Try and find an 87 XT Manual...
wow talk about time consuming! Im hoping its just that resistor! I have the entire 88 Service manual downloaded for the XT, mines an 88 according to the registration but the build dates 87/02
Posted 05 August 2006 - 11:42 AM
Posted 05 August 2006 - 01:37 PM
Posted 05 August 2006 - 04:34 PM
By spider, I mean it has the new fancy shmancy intake manifold on it. TB points toward the firewall, and has 4 runners that look like spider legs (sort of...). That's an 87.5. I'm not entirely sure what ECUs are compatible with it though.
Well its the one i found here that i downloaded, unless you have a Manual for a 87 aroundhere i could download. By Spider you mean the instake runners right? So the ECU HAS to be from an 85-87.5 SUbaru XT Turbo or what?
85-86 definitely are not compatible. Seems to me early 87 (non-spider, tb points toward the sky, but has hotwire maf and optical disty) aren't either. Probably could use the non-XT 88+ Turbo ECU. To be completely sure though, you'd probably have to get an 87.5 XT Turbo ECU. (XT Turbos never made it in the US past 87.5)
Posted 05 August 2006 - 04:45 PM
Posted 05 August 2006 - 04:49 PM
87.5 XT Turbo, definitely. I dunno if the spider intake has anything special on it that prevents non-XT ECUs from working though.
Oh.....really now, so an 87.5+ EA82-T ECU should work then?
Posted 05 August 2006 - 06:07 PM
Posted 09 August 2006 - 01:40 AM
Posted 13 August 2006 - 12:25 AM
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