NO spark or ECM power ?????????

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bustiegtr
Posts: 33
Joined: Wed Aug 11, 2004 4:49 pm
Car: Anything and everything with racing and sports.

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I recently did the SR20DET (S13) swap on a 91 nissan hardbody and I went to start it for the first time and it turns but no spark and the ecm seems to not be getting any power. I checked the grounds and they are all hooked up? How many grounds are there on the harness? For the wiring i cross referenced the wiring from my truck to a 90 240sx. I am stumped to why there is no power. Any help is appreciated.


Nismo_Freak
Posts: 10314
Joined: Wed Jul 24, 2002 10:42 pm
Car: 89 Nissan 240SX

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bustiegtr wrote:I recently did the SR20DET (S13) swap on a 91 nissan hardbody and I went to start it for the first time and it turns but no spark and the ecm seems to not be getting any power. I checked the grounds and they are all hooked up? How many grounds are there on the harness? For the wiring i cross referenced the wiring from my truck to a 90 240sx. I am stumped to why there is no power. Any help is appreciated.
If you are getting fuel there is power to the ECM during cranking.

There is a ground on the coilpack harness, and there are two grounds coming off of the injector harness.

Test your ignitor.

bustiegtr
Posts: 33
Joined: Wed Aug 11, 2004 4:49 pm
Car: Anything and everything with racing and sports.

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Ok I pulled the plugs and no fuel getting in. The grounds are all hooked up and still nothing. Checked the pins for the power to the ECM and no juice there. Would the ignitor cause this? Still dont know, also my ECM is number 63 which is for automatic trannies would this be the problem because people have told me that this ECM would work on a standard transmission.

bustiegtr
Posts: 33
Joined: Wed Aug 11, 2004 4:49 pm
Car: Anything and everything with racing and sports.

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I now ran the computer hot from the battery to see if it would atleast start and nothing. The computer did get power but it produced nothing no fuel or spark. The red code light on the ECM stayed on constantly when it had power. I tried my old KA24E computer to see if it would turn its little LED light on and it did but the green LED turned on not the red code light. Now with that in mind is my ECM bad? Is there a way to test the ECM's? I have no clue I am stumped right now but have not yet given up.


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