RE: CA18det 240sx no start

Discuss topics related to the CA18DE and CA18DET series engines.
ZenkeiXs13X240sx
Posts: 3
Joined: Tue May 21, 2013 9:35 am
Car: 1991 240sx 1989 ca18det swap

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Hello, I'm pretty new to the forums so I'm hoping I'm even posting in the correct manner in the first place lol

If so, I'll start with my current parts/build

1991 240sx with a ca18det 1989
Bought the car for about 900 bucks a few months ago, been replacing random parts on the chassis since. Stitch welded etc etc.
now, the motor had already been running when I had got it, but it would pull timing like a boss and cut out every time I'd hit boost when I'd take it for test runs up the street. I've since take apart the engine and discovered 2 broken injector caps. So I was thinking the extremely whack spray pattern had a lot to do with it. Now, I've tried OEM ca injectors, ka injectors STI 555 injectors, and my current injectors (that ill be sticking with) EVO 9 MR 560's
Now here's the thing, I've since retired everything, tested spark.. CAS is fine tested all obvious things etc etc, ill crank it over, but it quits, and I / friends hear a vacuum spurt. After locating it its multiple locations because every time it quits cranking you can hear "vacuum" coming OUT of the manifold!!! Lol it's crazy right? I checked the physical timing today and its set fine
Note_it was running before I took it apart, now nothing
Any suggestions? They would be muccccchhhh appreciated
Thank you so much!
A much confused Steve :wtf2:


DriftLife240
Posts: 15
Joined: Fri Jan 11, 2013 5:59 pm
Car: 92 s13

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Any pictures of how you have your vacuum lines? and trust me its gonna be something stupid for me it was having the fuel lines backwards it would run for like 5 seconds then die haha.

ZenkeiXs13X240sx
Posts: 3
Joined: Tue May 21, 2013 9:35 am
Car: 1991 240sx 1989 ca18det swap

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I don't have any pics I will upload some when I put everything back together
It's really really confusing me though because everything looked fine.
I also have no idea how to check if the intake valve is opening or not
My fuel lines were backwards too lol that was one of the problems had the pressure going to the return line xD

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float_6969
Moderator
Posts: 17366
Joined: Mon Aug 26, 2002 1:55 pm
Car: CA18DET swapped 1995 Nissan 240sx (too many mods to list)
2015 SV Leaf w/QC & Bose (daily)
Location: Topeka, Kansas
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codes?

ZenkeiXs13X240sx
Posts: 3
Joined: Tue May 21, 2013 9:35 am
Car: 1991 240sx 1989 ca18det swap

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Codes are 23/45
The 45 concerns me because there's the possibility of the ecu being bad, even though I don't see that being the problem.
Looking at my pictures before tear down however this morning I realized I have some hoses going to the wrong places. In specific the breather hose off the exhaust valve cover should be going too the turbo inket elbow. Mine is not lol
There is a tee though.. On the hose near the intake AFTER the iac (not AAC on top) that loops down there was supposed to be a tee from there going to the hot pipe of the IC system. I'll be testing it soon :)


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