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View Full Version : NEED HELP Injectors not firing


flexer
05-10-2008, 05:16 PM
Ok.

I have swapped a SR20det into my Lotus Super 7. Here is what I have done and what I think my problem is:

I have fuel in the rail
I have spark
I can spray in starter fluid and it will start so then I go to injectors
I pull off a injector clip and measure no voltage across it so I am not getting a signal to open the injectors.

HERE ARE THE QUESTIONS:

The Dropping resistor goes to a large white plug. I have the plug un-hooked. So its like the resistor is doing nothing. I don't have a 240sx so I don't know what that plugs into. The white plug is about the same size as the one that is right next to the big ECU plug that goes into the cluster. It is a Male plug.

1. What do I need to check next?
2. How do I modify that white plug to wire in the dropping resistor?
3. What else would keep the injectors from signaling and firing the injectors?

J. R.

KiLLeR2001
05-10-2008, 05:37 PM
Check the resistance on the injectors. Should be about 11.5 OHMS.

flexer
05-10-2008, 05:55 PM
I unplugged injector #4 and measured NOTHING across it. It has no resistance. So its like its not even plugged in....Where to check next. Like I said I think it has something to do with that large white plug that I don't have plugged to anything that the dropping resistor goes into. You guys will have to tell me what that white plug goes into on a 240.

J. R.

KiLLeR2001
05-10-2008, 08:24 PM
How bout the other 3 injectors? You should definitely get some sort of resistance with them.

DOOK
05-10-2008, 08:27 PM
how about a ground?