Ross Posted March 28, 2005 Share Posted March 28, 2005 OK, i started the engine with the green connectors unplugged. I then unplugged the coolant temp sensor. The ecs light came up, and the computer started flashsing code 33 as expected. I then turned the car off, and plugged the temp sensor back in. I then plugged the green connectors in and turned the ingnition to the on position (engine off). Code 33 did not flash, just 11 & 12 (they always flash with the ign on and engine off). Quote Link to comment Share on other sites More sharing options...
royboy159 Posted March 28, 2005 Share Posted March 28, 2005 Hey Ross---Is your engine fuel injected? Quote Link to comment Share on other sites More sharing options...
Ross Posted March 28, 2005 Share Posted March 28, 2005 yep - mpfi turbo ea81 (ea81t) Quote Link to comment Share on other sites More sharing options...
royboy159 Posted March 28, 2005 Share Posted March 28, 2005 I'm still unable to get stored codes from the ecs. There should definitely be some in there, but they dont show up when the green connectors are conected. What is the problem here? Hey Skip---Hey Naru---Any ideas? Hey Ross---I can only wonder if your model does have a memory connector that needs to be found. But I gather you already looked under both sides of the dash, both sides of engine compartment, but haven't found a set of probably black connectors. But at this point I'd take any color.:-\ Quote Link to comment Share on other sites More sharing options...
naru Posted March 28, 2005 Share Posted March 28, 2005 I'm still unable to get stored codes from the ecs. There should definitely be some in there, but they dont show up when the green connectors are conected. What is the problem here? I``m pretty sure the rudimentry pre-85 computers have no capability to store historic trouble codes. ie-if you fix the problem the code is instantly gone Quote Link to comment Share on other sites More sharing options...
Ross Posted March 28, 2005 Share Posted March 28, 2005 That would explain a few things! If this is the case, perhaps Skips write up should be changed to clarify this point? Thanks naru. Quote Link to comment Share on other sites More sharing options...
royboy159 Posted March 28, 2005 Share Posted March 28, 2005 I``m pretty sure the rudimentry pre-85 computers have no capability to store historic trouble codes.ie-if you fix the problem the code is instantly gone Thanks Naru. Hey Ross---If this is the case then rerun the coolant temp sensor test but leave it disconnected until after you check for codes with the key on, engine off, with green connnectors connected. :cool: Quote Link to comment Share on other sites More sharing options...
jis2sexxxy Posted April 25, 2005 Share Posted April 25, 2005 Skip, I have the chilton subaru manual, it tells me how to test most of the sensors and there circuits, the wastegate solenoid is not in the manual anywhere. Would you happen to know how i test this unit? What is its resting state, is it normaly closed or normally open? I get a short across the poles 0.02ohms. 13.47vdc at the connector with engine running. I am testing the units because I recieved several error codes all at once, thinking it may be a common ground causing the errors. thanks for any help. Quote Link to comment Share on other sites More sharing options...
Skip Posted April 25, 2005 Author Share Posted April 25, 2005 The WGS is a solenoid valve, the valve part is NO (Normaly Open) The resistance reading you are getting is too low, the FSM says 17 to 21 ohms. But if the coil were shorted it wouldn't show the ground point connection you mention. I will assume you checked the coil to see if it is internaly shorted to the body of the unit, this could be causing the ground short you speak of. The BW wire to the WGS is connected to fuse #11 so if the wiring to the unit was shorted to ground you would see battery voltage across the the connector, but this might also be the control system in the ECU showing you battery voltage. You could unplug the ECU and retest, the battery voltage should not appear across the terminals when this is done. But the BW wire should still show +12 Vdc when tested to ground. Hope this helps Quote Link to comment Share on other sites More sharing options...
jis2sexxxy Posted April 25, 2005 Share Posted April 25, 2005 Sorry I did not clarify, The solenoid was removed from the vehicle when I checked for Normally opened/Normally closed, and the connector was not plugged into the solenoid when I tested voltage at the connector. Thank you, yes this information does help very much. one wierd things though, the wastegate solenoid seems to be clattering away when the (green) test leads are connected. Is this normal for timing? Quote Link to comment Share on other sites More sharing options...
Skip Posted April 26, 2005 Author Share Posted April 26, 2005 Js2, The resistance you quoted for the WGS is still too low. When the green connectors are connected there is a series of self testes the ECU puts the engine controls through. The WGS may be in the loop, the fuel pump is for sure. I would retest the WGS or find a substitute. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.