Stevenchevy1992 Posted February 5, 2017 Share Posted February 5, 2017 Just bought my first nissan a couple weeks ago bought it and it ran really rough (low idle around 300 400 ) so i changed idle air control valve with one from junk yard that was working now it doesnt start at all it floods right away if i pull fuel pump relay it will fire and run till its out of gas then if i plug relay back it starts for about 2 seconds and dies and is flooded again i have check all the easy stuff regulator plugs injectors arent stuck open they do pulse Link to comment Share on other sites More sharing options...
snowboard419 Posted February 5, 2017 Share Posted February 5, 2017 When you pull the relay and it runs does it run well or still rough? If it runs well I would think leaking injector/s if still rough I would look at ignition timing. First things I would check would be good spark, timing, compression, We know your getting fuel just perhaps too much. And definitely check those 3 before you purchase any parts because not doing so has bit me in the ass big time a few times. Link to comment Share on other sites More sharing options...
Stevenchevy1992 Posted February 5, 2017 Author Share Posted February 5, 2017 Its has good spark when it starts it runs on all 6 just still idles low ill have to check compression if i open up the intake butterfly with the screw on the bottom it will run at 2000 rpm Link to comment Share on other sites More sharing options...
Stevenchevy1992 Posted February 7, 2017 Author Share Posted February 7, 2017 Has good compression i can get it to run if i turn in thr screw on the butterfly Link to comment Share on other sites More sharing options...
Citron Posted February 7, 2017 Share Posted February 7, 2017 You can try cleaning the MAF and throttle body and see if that helps. Have you checked for codes? Link to comment Share on other sites More sharing options...
Stevenchevy1992 Posted February 8, 2017 Author Share Posted February 8, 2017 I tried another maf sensor from junk yard off a running one still been same results also have a question as to what the valve is on the back driver side of intake im guessing it has something to do with air intake but not sure Link to comment Share on other sites More sharing options...
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