I went to start the car for the first time yesterday and had a crank no start condition. So i started testing everything. I have gas and fuel pressure to the fuel rail. However i have no fuel spraying but do have 12v to the injector. Then i checked the ignition system and i have no spark from the coil. The coil and those injectors worked the last time i used them. This leads me to believe that either im missing an input to the ecu or i damaged the ckp.

I also substuted a known good ecu and same problem. The car cranks normally, the ground circuits have little resistance and the battery has 12.6v. Everything in the starting system seems great.

So what input to the pcm would deny the car the request for spark and fuel ...? I believe the only thing is the ckp because the car has no cmp. Everything seems like it was installed correctly so that timing shouldnt be an issue however even if it was it would most likely start just run harshly or even stall but most likely start, however this doesnt even matter because i removed the rail and visually saw that its not spraying fuel.

 

bump

I have voltage at the coil and the main relay checked out fine. Also i went to jump the service connecter and nothing, no codes or pending codes.

 

if your CKP was bad you'd get an ECU code

 

well i should have said that actually. i tried a good known ckp and thats not it.

 

Did you remove the dead plug from the engine harness by chance? It will cause the injectors not to fire.

 

Make sure nothing is hooked up while swapping any electronic stuff. I.E. take off your negative battery plug.

 

Which dead plug ?

I also just checked the main relay and its good.

Im thinking now maybe ignition module(ignitor), im not sure that it wouldnt get fuel if it wasnt working. Like if its an input for spark and fuel. If anyone has any ideas let me know.

 

Well i checked the ignitor and it tested good. I also doubled checked firing order as well as if i had the distributer on correctly (only one way to put it on however i figured i would check). And it all tested good.

If the timing is way out would it spray fuel and spark or would the ckp see that and the pcm would take fuel and spark away ?

I have AEM cam gears im not 100% sure i installed the cam correctly. With the motor at TDC of compression stroke should the lines line up in the center or be stright up ? Also when its at TDC of compression and you pull the distributer should it be straight horizontally or not ?

 

somebody has to know that about the distributer ?

I checked to make sure that the lines lined up on the cam gears and they do. I also checked the injector with a noid light and nothing, didnt blink. I checked the coil again to see if i was getting anything on the secondary side and no, just a steady battery voltage.

 

the coil will get ground on the negative terminal as a signal to fire. if you're going to check for something, check for that.

Does the fuel pump prime? Does the CEL blink on when you turn the keys to ON?

 

cel stays solid and goes out, i tried jumping the connector and it just stays solid and when i remove the pin it goes out completly. Fuel pump primes.

Which pin is the negative, theres one that has battery voltage and two with less than a volt. Im guessing they are either grounds or signal wires ?

 

what pin are you talking about?

Your ecu seems to be working correctly.

Check the engine harness, at the shock tower, where it plugs in, there is one connector that doesn't plug into anything, it just has a plastic plug stuck into it. Make sure that is there.

 

your talking about the plug that goes under the TB ? I know of a plug there that is just like the one you are talking about ?

 

I guess you could say its "under the tb". It is on the shock tower, where all the big engine harness connectors plug in, its right in the bunch with all of them.

 

On a 5th gen ? Theres 4 plugs there i believe

 

have you tried a new coil?

 

i have a new one that i might substitute but it tested fine.

 

bump

 

the coil does not dictate whether you get fuel or not

is this a fresh build? whats the ckp/tdc sensor setup? obd1 style in the dist? obd2 style at the oil pump?

 

When you say you 'started the car for the first time', what do you mean exactly? Have you had the engine out/apart?

Definitely sounds to me like a wiring fault or a short somewhere. It doesn't sound like the signal to pulse the injectors is even getting through. Double check all your wiring & harnesses, and also check the wiring going from the ECU.

 

fresh build. Im using the stock obd2 ckp and have substiuted to another good known one. Its an obd2 dist with obd2 style oil pump.

Motor was apart

 

still no start... checked the timing and the cam gears were adjusted slightly however only a few degrees. I also checked the immobilizer and thats not it.

The only thing i can really think of is to get a scan tool and see if anything looks incorrect.


Modified by lude98SH at 6:45 PM 9/30/2007

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by lude98SH &raquo;</TD></TR><TR><TD CLASS="quote">still no start... checked the timing and the cam gears were adjusted slightly however only a few degrees. I also checked the immobilizer and thats not it.

The only thing i can really think of is to get a scan tool and see if anything looks incorrect.


Modified by lude98SH at 6:45 PM 9/30/2007</TD></TR></TABLE>
lol ding ding ding theres your prob. your timing is off by a few degrees. thats a major prob

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by preludefien &raquo;</TD></TR><TR><TD CLASS="quote">
lol ding ding ding theres your prob. your timing is off by a few degrees. thats a major prob</TD></TR></TABLE>

chris, adjusting cam gears is part of tuning, it should be fine like that, it is nowhere near as off as being a tooth off is.

anyways, OP: follow the procedure in the helms, we've gone through about everything and you say it checks out. So, there is something you're missing, the helms lays everything out very systematically, so try that

 

yea i guess ill try substituting the stock cam gears first off. Cant hurt and then maybe try another ecu ...?? I really dont know the only thing i can think of is the ignition module is not sending the rpm signal back to the pcm. Which i still havent gotten the scan tool i need to check that.