![](/images/threads/icons/0.png)
Hey everyone. So this isnt a typical no spark no fuel issue. Let me start from the begining. So i picked up an sr swapped 91 nissan sentra xe. i started driving it home and blew the motor due to 3 1/2 missing quarts of oil. So i figured it was a good time too swap a det into it.
Fast forward to the next day. i just finished dropping in the det. before i got the ic piping installed i did a test start and she fired right up. this is with stock maf and ecu from the na sr. anyway i get her put together and she feels amazing on the road. As i get home from the first test drive she starts bucking and dies. i take a look under the hood and my maf came unplugged. plugged it back in and she fired right up.
so next day i decide to drive it to the gas station and fill her up with gas(91 octane) as im driving back and on my way back she dies completely. i push her home (half a mile of up and down hills lol). So i start checkin the basics fuel and spark. Nothing no prime no spark. so i checked fuses under the hood and in the cabin and they all check out good. Next i check relays and grounds. still check out good. So after everything i decide to start from scratch. replaced everything to us sensers and replaced coil, distributor, coil, transistor, and fuel pump and ecu. I even switched injectors and went back to na to aid in iscolating the problem. Still nothing.
So i decided its time to break out the FSM. After numerous hours of testing i find out that im not getting a starter signal to the ecu. but instead it was grounding out so i ran a new wire to the ecu to a 12v switch source And still nothing. Ive owned and swapped motors on 5 seR'S and never had any issues like this. All connectors are connected. Still nothing. Im lost now any one with any advice? Im ready to torch this B. PLease help![confused](images/emoji/neutral/confused.gif)
also every thing gets power when i turn on the switch just nothin switches on????
Fast forward to the next day. i just finished dropping in the det. before i got the ic piping installed i did a test start and she fired right up. this is with stock maf and ecu from the na sr. anyway i get her put together and she feels amazing on the road. As i get home from the first test drive she starts bucking and dies. i take a look under the hood and my maf came unplugged. plugged it back in and she fired right up.
so next day i decide to drive it to the gas station and fill her up with gas(91 octane) as im driving back and on my way back she dies completely. i push her home (half a mile of up and down hills lol). So i start checkin the basics fuel and spark. Nothing no prime no spark. so i checked fuses under the hood and in the cabin and they all check out good. Next i check relays and grounds. still check out good. So after everything i decide to start from scratch. replaced everything to us sensers and replaced coil, distributor, coil, transistor, and fuel pump and ecu. I even switched injectors and went back to na to aid in iscolating the problem. Still nothing.
So i decided its time to break out the FSM. After numerous hours of testing i find out that im not getting a starter signal to the ecu. but instead it was grounding out so i ran a new wire to the ecu to a 12v switch source And still nothing. Ive owned and swapped motors on 5 seR'S and never had any issues like this. All connectors are connected. Still nothing. Im lost now any one with any advice? Im ready to torch this B. PLease help
![confused](images/emoji/neutral/confused.gif)
also every thing gets power when i turn on the switch just nothin switches on????