Start Up Issues. RESOLVED for now

[Mn92gvr4]

The question is, what triggers the 3 lights in the stock boost gauge when you turn the key to on?
All I get is a solid CEL when I turn the key to on. Unless I first disconnect and reconnect the positive battery lead, then the CEL goes off after 5 seconds or so and I get the boost lights. That only lasts for one start, after starting it goes back to a Solid CEL and no lights. Am I looking at a relay? bad ground? fuse? I've tried everything I can think of. /ubbthreads/images/graemlins/banghead.gif

 

[tektic]

Check Mpi relay is functional. See if you can connect to the diagnostic port.

 

[Mn92gvr4]

MPI relay is functioning properly. I can connect link when all is well but there isn't any codes. when shes in the shitter I cant connect.

 

[tektic]

Try another ecu? Have the caps been leaking in yours?

 

[Mn92gvr4]

I just had the caps all replaced when I had link installed. she was clean then she is cleaner now. but that's not the issue. Im not getting power somewhere. almost as if something isn't resetting after I shut the car off

 

[tektic]

Start with ignition harnesses then check grounds. If the components work that leaves wires. I got nothing else.

Better yet check from the ecu harness for power and ground and work backwards. That may prove easier.

 

[fuel]

did you check what fault code is being stored by the ECU which is triggering the CEL to come on in the first place?

 

[toybreaker]

Quoting Mn92gvr4:
Unless I first disconnect and reconnect the positive battery lead, then the CEL goes off after 5 seconds or so and I get the boost lights. That only lasts for one start, after starting it goes back to a Solid CEL and no lights. Am I looking at a relay? bad ground? fuse? I've tried everything I can think of. /ubbthreads/images/graemlins/banghead.gif



Do you have a turbo timer?

 

[Mn92gvr4]

No on the timer. At this point it is resolved. I deleted the fuse box that hooks directly to the battery and got nothing. unplugged the ecu and plugged it back in. so far it has been working for 2 days without interruption. not entirely sure what did it tho.
thanks for the imput guys.