Starting Problem
#1
Starting Problem
I have a 1990 240sx that wont start i know what is causing it to not start. the fuel injectors arent getting a signal and therefore arent being pulsed but there is definatly fuel pressure at the injectors. as far as i can tell there are no loose grounds or anything like that. anyone have any suggestions?
#3
i already swaped it out for another one. ive been fighting this thing for a long time and i cant find anything wrong with it. i was wondering about the EGI relay if that was bad would that keep it from getting a signal?
#4
^
the engine wouldn't turn over if that was the case but if you haven't done so already it's worth tiring.
what else dose the car do or fail to do when you try to start it?
the engine wouldn't turn over if that was the case but if you haven't done so already it's worth tiring.
what else dose the car do or fail to do when you try to start it?
Last edited by jramosthe1st!; 11-01-2007 at 04:30 PM.
#5
everything else seems to work fine at firts i just assumed that it wasnt getting spark but it has spark. the ecu i put in was out of an automatic car of the same year i dont know if that matters.
#9
Sorry to be inquisitive, but how do you know there is no signal to the injectors? Do you have a an injector node light?
I assume you check and see spark. If you do see spark, and through proper checking, there is no injector signal, it does either have to be a missing ground, power, or bad ECU.
Also, have you checked for codes and when was the last time the car ran?
I assume you check and see spark. If you do see spark, and through proper checking, there is no injector signal, it does either have to be a missing ground, power, or bad ECU.
Also, have you checked for codes and when was the last time the car ran?
#10
yes i did use a node light and i also used a multimeter just to check and it has spark for sure (try and guess how i found out) the car has never ran since i bought it
(edit) i also got a wiring diagram and tested all the fuel related ports on the ecu with a multimeter everything seemed okay
(edit) i also got a wiring diagram and tested all the fuel related ports on the ecu with a multimeter everything seemed okay
#11
yes i did use a node light and i also used a multimeter just to check and it has spark for sure (try and guess how i found out) the car has never ran since i bought it
(edit) i also got a wiring diagram and tested all the fuel related ports on the ecu with a multimeter everything seemed okay
(edit) i also got a wiring diagram and tested all the fuel related ports on the ecu with a multimeter everything seemed okay
If this is not the case, sounds like a dead ecu
#12
i guess i need to rephrase my edit i was checking for a loose ground when i was doing that i think the possibility of the node lights being bad is unlikely as they had never been used when i used them but i guess it is possible. the car is a SOHC ka24e. and i tried swaping the ecu out for another one but it didnt seem to help. when i bought the car it had a blown headgasket. and i originally thought that i didnt hook up a ground but i cant find a loose ground anywhere
#14
when i bought the car it would start not very well due to the head gasket. It has been started one time since it was done but it was on carb cleaner through the intake so i know it can run but it hasnt started on its own since i redid it