Help, cant get my fully built sr20 to turnover

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blusilvia
Posts: 15
Joined: Mon May 16, 2005 3:27 am
Car: 1995 blue 240sx w built sr20det

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Early last summer I finished fully building my sr20det. I put it in the car and she started up fine. I drove it about 500 miles and then parked it. It sat for about 6 months and recently I went outside to start it and it will not start now. I changed the plugs, mixed the old gas with some new 93 octane and it still wouldn't backfire, start or anything. So I pored some oil down each of the cylinders hoping that maybe they just weren't compressing due to the rings not yet being fully seated. This made my car crank a little faster but no start. I also tried to take the airfilter off, I checked the ecu and it wasn't throwing any codes. I Checked the MAF and it seems fine. I can hear my fuel pump pumping and can also hear my Nismo FPR making noise. Both sides of the fuel lines have pressure. I also checked all 4 spark plugs and they would arc. I also cranked it and messed around with the Cam angle sensor. Still nothing.

Does anyone have any ideas? I have not checked each individual injector? wouldn't it still pop though if some fuel was getting through even one or two of them? I also do not know where the main engine grounds are, does anyone remember? Please help!



WONit
Posts: 322
Joined: Wed Dec 08, 2004 8:40 pm
Car: 89' 240sx Redtop

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I would probably try checking to see if the injectors are firing. Also i would take some brake clean,or starter fluid and spray into the intake,or somewhere that it would make it into the cylinder...or just pull a couple plugs spray a good amount into the cylinder,and see if it pops or starts.

blusilvia
Posts: 15
Joined: Mon May 16, 2005 3:27 am
Car: 1995 blue 240sx w built sr20det

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Thanks, I will try that next. Any other ideas from anyone?

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karmakaze
Posts: 2636
Joined: Sat Apr 23, 2005 1:52 pm
Car: 98 240sx SE
Contact:

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+1 for trying the starter fluid.

it only takes 4 things to run... spark, fuel, timing, and compression.

if it ran before, and you have not made any changes, you can eliminate timing and compression.

that leaves you with spark and fuel.

check for spark on each cylinder by sticking a screwdriver into each spark plug wire and holding it close to a ground to see if it sparks.


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