CA20e wont start... spark and gas but no VAROOM!

T3rry · Jul 16th, 2004, 10:31 AM

any suggestions?, i knows its getting spark(jupmed a plug wire), and i know its getting gas(took off the line at the filter and it sprayed across the street), but i also know its not going VAROOOOM(just cranks n cranks)!

Gsolo · Jul 17th, 2004, 12:17 PM

try posting this under the E/CA section under Sentra. I have no idea what would cause it to do that that just kinda blows my mind.

T3rry · Jul 17th, 2004, 01:14 PM

ok so i did soem further checking and determined that all of the fuses are good... i have narrowed it down a bit

i swapped the ecu and that did not help. HOWEVER

i found a diagnostic mode thing on the euc and i put it in that mode. it gave me 3 codes, not sure what they mean

#1 - Idle Controller
#2 - Load Signal
#3 - Start Signal

any insight on this would be appriciated!

T3rry · Jul 17th, 2004, 01:18 PM

where is the idle controller? maybe i'll try swapping that out

Gsolo · Jul 17th, 2004, 01:43 PM

lmao....idle controller. nissan gave names to different things then changed the names. i've had stanza's tell me that too and i dont know which is the idle controller.

T3rry · Jul 18th, 2004, 12:53 AM

i foudn out that the injectors are not pulsing... can anyone shoot me a few suggestions as to why this would happen?

Gsolo · Jul 18th, 2004, 12:58 AM

Quote:

Originally Posted by T3rry

i foudn out that the injectors are not pulsing... can anyone shoot me a few suggestions as to why this would happen?

worn out; bad signal; bad ecu

T3rry · Jul 18th, 2004, 12:33 PM

i replaced the cpu and that did not help any, the car will run if i spray ether in the intake

Gsolo · Jul 18th, 2004, 02:34 PM

my guess would be the injectors are dead. check resistance on them

T3rry · Jul 18th, 2004, 04:36 PM

i put a test light in the actula injector plug thing, and they arent even getting power

nispulsar · Jul 19th, 2004, 09:56 PM

It is missing the power or the ground??? It has to have both to pulse, I believe the comp controls the ground, and the power is there from a fused source, maybe off the ignition switch, or a relay in the vehicle.

Gsolo · Jul 19th, 2004, 10:48 PM

Quote:

Originally Posted by nispulsar

It is missing the power or the ground??? It has to have both to pulse, I believe the comp controls the ground, and the power is there from a fused source, maybe off the ignition switch, or a relay in the vehicle.

somethign like that, i just know you can check the resistance of the injector itself to see if its good or not

T3rry · Jul 20th, 2004, 02:41 PM

any other nissan forums i could post in for help?

KA24Tech · Jul 21st, 2004, 02:27 AM

T3rry what year is your car?

First double check all of your engine electrical connections because the ECU is missing an input. The load and start signal are needed by the ECU to control the timing pulse and width of the injector. That is why no fuel going in, but I'll stop by Nissan and check after I can find out what year you have.
I think you said that you checked all of your fusible links, right?

Troy

T3rry · Jul 21st, 2004, 12:19 PM

Quote:

Originally Posted by KA24Tech

T3rry what year is your car?

First double check all of your engine electrical connections because the ECU is missing an input. The load and start signal are needed by the ECU to control the timing pulse and width of the injector. That is why no fuel going in, but I'll stop by Nissan and check after I can find out what year you have.
I think you said that you checked all of your fusible links, right?

Troy

thanks for the reply, i have checked all of the fuseable links, as well as all of the relays by the battery (4 of them) as well as trying a diffrent ecu and fuel pump... its possible that the load and start codes are maybe becase i am doing the check incorrectly, i just turn it to diag, and thne turned the key to on(one step before start)

BTW i have a ca20e
its in an 86 multi
thanks for the help, if you need any other info post up.