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S14 sr20det in 180sx Running issues - Hardtuned.net

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S14 sr20det in 180sx Running issues 

180sx s13 s14 turbo sr20det
2 replies to this topic

#1 steve_o

  • Joined:30-November 14
  • Location:Australia NSW
  • Car:180sx

Posted 28 July 2016 - 12:02 PM

Hey everybody,

I reach out in times of need to the forums. I have recently installed an s14 s1 sr20det into my 180sx. by a stroke of luck and a whole lot of errors i managed to get it all installed on my own.The engine is running, (poorly) but its only some tweaking left i believe. the issue is that cylinder 1 and 4 dont seem to be running. if i unplug the coilpack plug, the engine idle does not change at all, but there is a spark present on each cylinder. ive swapped packs over with each other and all new sparkplugs but the problem remains. ive also done a timing test and it is bang on. I then believed it was the injectors so ive installed a set of s15 injectors and the problem remains. ive tested all injector plugs with a noid light and they are all firing as they should. there are no boost leaks and im running a standard s14 s1 ecu. there is a constant 140+ compression on all cylinders. i have a walbro 255 fuel pump but when i put the old (possibly ca or sr20de) pump on i can hear a slight audible change in engine idle when unplugging cylinder 1 but 4 is still completley useless. the car seems to drive fine other then a whole heap of smoke on hard accelerating and a constant misfire problem. im completly out of ideas and really hope anyone could offer some advice thanks in advance!!

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#2 snowdude_r

  • Joined:31-May 11
  • Location:Australia QLD
  • Car:nissan 180sx

Posted 29 July 2016 - 11:22 AM

How's the fuel pressure reg??

#3 steve_o

  • Joined:30-November 14
  • Location:Australia NSW
  • Car:180sx

Posted 30 July 2016 - 10:59 AM

View Postsnowdude_r, on 29 July 2016 - 11:22 AM, said:

How's the fuel pressure reg??

Well I had the standard fuel rail in and the same problem was present. I swapped over to an s15 rail and injectors so I doubt both regs were faulty but I am leaning towards it being a mixture issue

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