currently trying to use a gm solenoid with s300. have it wired as followed, one wire to a11 and the other to +12 volt source. the problem is everytime i turn on the ingniton the solenoid gets activated no matter what i set the solenoid activation to. the gm solenoid is a normally open solenoid, but i have tried it both open and close with no luck. took the ecu to a reputable shop today and have it inspected, everything checked out fine. not sure what it could be this is the second solenoid that i have tried.

 

I had the same problem and I had to had to put a new q20 transistor in it.

 

I hope that works man

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by narfdanarf &raquo;</TD></TR><TR><TD CLASS="quote">I had the same problem and I had to had to put a new q20 transistor in it.</TD></TR></TABLE>

going to give that a try

 

is it pulsing like it should or is it going all the way closed when you turn on the ignition? I had one ecu that did this to me. Never could figure out what it was. It would just pull a ground to it no matter what.

 

Use the least amount of heat to those components.. preferrably a 15 watt Iron or a temp controlled unit. and if switching the transitor does not work, then you'll have to get another ECU.

 

its not puslsing, it closes all the way soon as i turn on the ignition on. i ordered the transistor today so i'll see what happens.

 

problem fixed...bad transistor in the ecu