S14 SR20DET cranks, but won't start

Post by **swartztech** » Fri Mar 06, 2009 11:28 pm

Ok, so ive read tons and tons of forums before i decided to post my problem and have had zero luck... I have a 95 240sx with a s14 sr20det swap, my last sr20 blew up so i bought another one and recently just put it in...it cranks but doesn't start, ive looked at about everything, it has great spark on all four plugs, its getting fuel in all 4 cylinders, it has compression on all four cylinders, i replaced the battery, fuel injectors, fuel rail, fpr, tps, cleaned the maf sensor and unplugged it to see if it would start without it plugged in, tried different spark plugs, switched out all four coil packs, switched out the spark plug harness, tried about every angle on the CAS...ive looked over and over at the engine and made sure everything is hooked up where it is supposed to be and there are no cut vacuum lines or anything, i tried the ecu that came with it and the ecu that i already had...i can hear the fuel pump kick on when i turn the key and it has great pressure...i have had 5 different people, that know a great deal about cars, look at it and none of us can figure this out.... i am out of ideas guys and am trying to keep from breaking down and taking it to the shop! any suggestions would be GREATLY appreciated!

Post by **n240sxfnatic** » Sat Mar 07, 2009 7:05 am

Did You install the CAS correctly per FSM?

Post by **foress_89** » Sat Mar 07, 2009 7:57 am

maybe the timing is totally off?

Post by **swartztech** » Sat Mar 07, 2009 11:19 pm

I didn't need to install the CAS, it was already on it when i received it...is it possible that it was shipped to me installed wrong??

Post by **swartztech** » Sat Mar 07, 2009 11:25 pm

It is possible that the timing is completely off but i dont know how to adjust the timing on this engine...i only know how to time distributor engines, how do you check it? and is it possible that one of my sensors could be bad? if so, what sensors would keep it from starting?

Post by **n240sxfnatic** » Sun Mar 08, 2009 6:24 am

You didnt even check it?

Post by **PapaSmurf2k3** » Sun Mar 08, 2009 6:31 am

If you get fuel, spark, compression, there are only 2 things it can be- Timing, or the incorrect amount of fuel.

Post by **swartztech** » Sun Mar 08, 2009 9:34 am

I did an external check, but as far as pulling off the valve cover and looking at it i dont really kno what im looking for...i usually mess with old v8's, this distributorless stuff kills me

Post by **swartztech** » Sun Mar 08, 2009 9:35 am

How do I check the timing and fuel pressure on the sr20?

Post by **n240sxfnatic** » Sun Mar 08, 2009 10:06 am

Well since ur new ill cut you a break, Align CAS like thishttp://www.frsport.com/How-To-....html

Post by **PapaSmurf2k3** » Sun Mar 08, 2009 10:26 am

You'll need a fuel pressure checker/gauge for the fuel pressure check. Put it after the fuel filter, before the injectors.

Timing... I don't really know, I've never worked on one of them.

Post by **swartztech** » Sun Mar 08, 2009 5:13 pm

lol, thanks i appreciate it....ill give that a try, if that doesn't fix it then what else would you recommend?

Post by **swartztech** » Sun Mar 08, 2009 5:18 pm

ok thanks...so there isn't a bad sensor that would stop it from turning over other than the CAS?

Post by **swartztech** » Mon Mar 16, 2009 7:14 pm

So i checked the fuel pressure and the CAS is correctly installed...im stumped....

Post by **mexicanracer03** » Tue Mar 17, 2009 4:58 am

try the CAS that you have from the motor you blew....

Post by **swartztech** » Wed Apr 15, 2009 9:15 am

so i guess im just towing it to a shop tomorrow, ive tried everything i know...let yall kno wat the problem was when i find out

Post by **MTX450** » Mon May 11, 2009 9:59 am

Any resolution to this? My friend is having a similar issue and we spent so many hours on it with no luck.

Post by **BoostedPig** » Mon May 11, 2009 6:04 pm

This happened to me....it may sound kinda dumb, but check the o rings in the injectors and make sure your not flooding it....my orings were shot and thats why it wouldnt start...we noticed it when we had all of the spark plugs out and cylinder 2 and 3 were pushing a whole lot of fuel out. Also, I know that on the s13 sr there is a little red plug under the intake mani that is inline with the tps, I don't really know what it is, but I do know that it being unplugged made my car do this same thing.

S14 SR20DET cranks, but won't start

S14 SR20DET cranks, but won't start

Re: S14 SR20DET cranks, but won't start (swartztech)

Re: S14 SR20DET cranks, but won't start (n240sxfnatic)

Re: S14 SR20DET cranks, but won't start (n240sxfnatic)

Re: S14 SR20DET cranks, but won't start (foress_89)

Re: S14 SR20DET cranks, but won't start (swartztech)

Re: S14 SR20DET cranks, but won't start (swartztech)

Re: S14 SR20DET cranks, but won't start (swartztech)

Re: S14 SR20DET cranks, but won't start (PapaSmurf2k3)

Re: S14 SR20DET cranks, but won't start (swartztech)

Re: S14 SR20DET cranks, but won't start (swartztech)

Re: S14 SR20DET cranks, but won't start (n240sxfnatic)

Re: S14 SR20DET cranks, but won't start (PapaSmurf2k3)

Re: S14 SR20DET cranks, but won't start (swartztech)

Re: S14 SR20DET cranks, but won't start (swartztech)

Re: S14 SR20DET cranks, but won't start (mexicanracer03)

Re: S14 SR20DET cranks, but won't start (swartztech)

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