engine will not fire

[whiteclaw95]

Ok I have resorted to going through the sensors and this is what I have the ck sensor has its 9v and 5v signal. The sensor next to it (which as of now dont know what it is) wires are W/y and b/g read at .54v and the Knock sensor (I believe) comes in at 12v on the yellow wire and nothing on the y/r wire. My main question is are these values correct cause I was told my cam sensor should be 12v on the yellow with no more than 4v on the signal. I will be going through the wiring to the ecu but dont have that kinda time right now.
Any and all help will be appreciated.

 

[DeadlyScone]

http://www.dsmtuners.com/forums/articles-miscellaneous/217951-how-diagnose-no-start.html

 

[1davho]

It cranks but doesn't start? did you check to see if you are getting spark? Can you hear your fuel pump running? If you don't have spark, I would guess its the ckp sensor. If you have spark, you are probably not getting fuel. Bad fuel pump or fuel pump relay.

 

[whiteclaw95]

Here is where I stand now

I have my fuel pump working with 47psi of pressure. My ck sensor and ect sensor replaced along with timing is on par.. I am getting spark but spark doesnt start for about 8sec after I start cranking it over. Could it be the cm sensor, ECU, or am I missing something?

 

[1davho]

You have a 420a? I think those have an auto shutdown relay on the firewall. There should be 4 relays in a row. I don't know which one it is, but try swapping that with a known good relay. The relay controls spark and fuel injection.

 

[whiteclaw95]

It is the 420a motor. I only have the asd/fuel pump relays on my firewall

Oops complete brain fart. I will try the asd relay. My mind is just tired of the problems with this

My ecu is also making a high pitch whining noise. Is that a possibility? I dont think thats normal but Im not too sure

 

[1davho]

Your ecm shouldn't make a whining noise. But I would start with the relay. it is an easy, cheap check. If that doesn't fix it and If you have access to a noid light, check to see if you are getting injector pulse. if you arent getting a pulse, there is a good chance your ecm is bad.

 

[whiteclaw95]

Now with what I have done to get my car running. I have replaced the following sensors ck, cm, water temp. I have also replaced my asd/fuel pump relays.

Timing is dead on

I have recently replaced my head gasket due to there was bad compression in #2 and #3 cylinders. I am getting spark and fuel now with a code #43 egr. I did remove this and I am wondering if this could be causing my engine not to start?