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Now I get it. More... Posted by JimBlake [Email] ![]() ![]() ![]() In Reply to: Re: its pulsed, MEB, Tue, 23 Mar 2004 06:13:42 Members do not see ads below this line. - Help Keep This Site Online - Signup |
If you just want something that's on all the time, use the main relay. It provides constant +12vdc power to a bunch of things, including the ELCD solenoid. The ECU opens & closes the ground leg of each circuit to cycle the valves... So maybe all you gotta worry about is current draw & wire/fuse capacity?
I've got an '89 LH 2.4 circuit drawing, maybe the same for '90??
Main relay terminal 87B provides continuous power to the AIC, AMM, & ELCD. Terminal 87 gives power to the injectors, but ALSO to the cold-start injector that we don't get in USA. (Well, where are you?) In europe & canada they get a 5th injector, sticking in the manifold, just downstream of the throttle-body. In USA we get a blanked-off plate screwed over that hole.
Look for an empty plug somewhere around the throttle body. Should have 2 wires, black/red & brown. Black/red is powered by terminal 87 of the main relay.
posted by 68.73.7...
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