ca18det has spark turns over but not fuel

Discuss topics related to the CA18DE and CA18DET series engines.
User avatar
demollitionman
Posts: 10
Joined: Sat Jul 07, 2012 9:54 pm

Post

First of all thanks for reading and/or helping me out, I need help with my swap

A little bit of information on my car is an auto s13 chassis with a brand new wiringspecialities EFI harness and lower harness, the engine is from the japanese market and not european,

Now on to the problems car turns over but no combustion, has spark, has compression, fuel pump works but when i was troubleshooting I found out the injectors are the problem since the combustion chambers had no fuel whatsoever, I cut and soldered a dsm resistor on to the harness (possible problem??).

The car did sputter and ran on starting fluid (lol) for about 5 seconds, it revved to about 2k then died so im pretty certain fuel is the problem

The other suspect is the ecu itself since when i set the key to ignition it powers up and the green and red led stay on at the same time and when i switch the key to the off position the ecu stays on i have to pull the batery for it to turns off and if i plug it back on it stays off unless I turn the ignition back on, the car has been without an engine for about 6 month and with the ka24de it never had that problem...

HELP MEEE!!!! :frown:


User avatar
demollitionman
Posts: 10
Joined: Sat Jul 07, 2012 9:54 pm

Post

I forgot to add that the engine and ecu are pretty much stock

CaDet s13
Posts: 66
Joined: Fri Aug 17, 2012 12:56 pm
Car: S13 240sx
Powered by Ca18Det
Location: Davie, FL
Contact:

Post

Something that is easy to check would be your fuel filter make sure its not clogged if it is get a new one. Your fpr could be shot too. And when you checked your fuel injectors are you sure they worked?

User avatar
demollitionman
Posts: 10
Joined: Sat Jul 07, 2012 9:54 pm

Post

CaDet s13 wrote:Something that is easy to check would be your fuel filter make sure its not clogged if it is get a new one. Your fpr could be shot too. And when you checked your fuel injectors are you sure they worked?
Yeah I tested the fuel pump and the fuel filter fuel does come out, i have yet to test the fpr however I had a fun day with my multimeter and the fsm as a guide, the dsm resistor works, the red wire going to the resistor has 12v, I also tested the injector plugs with a noid light and it failed I haven't tested the harness but since its a brand new wiring specialities harness i doubt its the harness and its the ecu thats screwed since it stays on without the ignition and accesories are off

my ecu PN is 23710 36f05 MEC d016-01 right now im looking for a ecu that works, can I use an EDM ecu? i guess i can use the 36f00 ecu??

anyone has one for sale?? :lolling:

CaDet s13
Posts: 66
Joined: Fri Aug 17, 2012 12:56 pm
Car: S13 240sx
Powered by Ca18Det
Location: Davie, FL
Contact:

Post

There were a few people parting out ca's less then a month ago in the engine/dribetrain classifieds they may still have an ecu up for grabs. Im not too good with elelectronics and was is interchangeable with them and what isnt. In the faq sticky in this section might give you some answers on that. There is alot of useful info in it

boost_boy
Posts: 7051
Joined: Thu Nov 14, 2002 7:28 am
Car: B12 sentra w/built CA18DET, B12 sentra w/fully-built CA18DET, S13 coupe w/ CA18DET, S13 hatch w/CA18DET, 2002 maxima SE
Location: Miami, FL.
Contact:

Post

If the lights on your ecu stays on when you cut the ignition, you got a wiring problem. Your car isn't the first to do this and probably won't be the last. Until you figure out the cause of the ignition being kept on after the actual ignition switch has been switched to the off position, you're going to be in an uphill battle. Try to avoid the EDM ecu at all costs and fix the initial problem first which is the electrical drama within your engine bay. Good luck!

User avatar
demollitionman
Posts: 10
Joined: Sat Jul 07, 2012 9:54 pm

Post

boost_boy wrote:If the lights on your ecu stays on when you cut the ignition, you got a wiring problem. Your car isn't the first to do this and probably won't be the last. Until you figure out the cause of the ignition being kept on after the actual ignition switch has been switched to the off position, you're going to be in an uphill battle. Try to avoid the EDM ecu at all costs and fix the initial problem first which is the electrical drama within your engine bay. Good luck!
Lucky me lol

Well i Think its the egi relay Thats keeping the ecu online and i think its bad I Took it off and the ecu came on and off with the ignition Switch I still dont have injector pulse I do have 12v on the injectors from the resistors side.... how can i test if the injector ground from the ecu is working as intended

User avatar
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
Contact:

Post

The EGI relay is what provides power to the injectors, idle control valves, etc. IIRC. If you used a noid light, and you got nothing, either the wiring is bad (unlikely) or the ECU is bad.

This could also be a bad CAS, they like to do all kinds of crazy stuff when the fail.

Also, are you sure the cam timing is dead on and not off a tooth?


Return to “CA18DE / CA18DET Forum”