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Engine Tech Technical discussion related to all relevant engines such as KA, SR, RB, CA, 2JZ , L24/26/28, VG, VQ, and LSx series.


 
 
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Old 10-07-2012, 07:22 PM   #1
jezzer4
 
Join Date: Sep 2012
Location: Tempe AZ
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EGI relay problems, no ignition power to ecu sr20det

I need help. My problems started after my wheel rubbed on the driver side harness and exposed some wires. This obviously caused some stuff to short out. After cleaning up that harness( rewired some stuff, soldered, new insulation) my fuel pump would not prime. After tons of research and troubleshooting, I gave up and just wired a manual switch to the pump. Fuel problem solved, the next problem was no spark. I found a random thread online and discovered that my egi relay was the problem.

So here is where im at now. Pin 38 and 47 on the ecu are supposed to get power when the key is "on". Well, they don't. I have to jump the egi relay across 3 and 4(the two connections closest to the fender) to get power to those pinouts(the relay is brand new btw). With the relay jumped the car idles not so great at first but gets better. But when driving im not even getting 4lbs of boost and the engine sputters at 5500rpm. Ive searched and tried to come up with a way to fix this, but I just don't understand this circuitry.
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