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-   -   Stock 87 TII ECU/Injector Question. (https://www.rx7club.com/engine-management-forum-37/stock-87-tii-ecu-injector-question-122881/)

TwinCam13BT 10-11-02 08:01 PM

Stock 87 TII ECU/Injector Question.
 
Whats up.
I just got done dropping a motor into my car, 87 T2, but she wont start. The harness was crumbling during the process so I did some investigating....

I took a multimeter to the injector wires, and I am getting 12V to both wires, to each injector.
Is this correct?


Thanks.

RETed 10-12-02 02:02 AM

Yes.&nbsp There are "pull down" units which take a ground pulse to open them.



-Ted

TwinCam13BT 10-12-02 08:23 PM

Thanks Ted.
And also, maybe you can tell me if my ECU is malfunctioning.

I took a voltmeter to the injectors wires, and on one occasion it gave no power at all. Then in a few hours it have 12V to only one wire per injector. Then the next day it gave 12V to each wire.

I made sure I had correct grounds and that each reading was correct.

any ideas?

I basically rewired the harness; I removed a portion of the injector wires and used newer connectors.

Thanks.
Justin


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