Crank No Start Condition

[raygunn]

Hi all - I recently replaced my plugs, wires, O-rings and valve cover gaskets on the 93 ATX parts car, and now it cranks but doesn't seem to be getting any spark. I double-checked the wire order and am sure I hooked everything up correctly, but this is the first time I've had the intake and valve covers off, so I'm guessing I did something wrong. Any suggestions on where to start?

 

[SHOracer14]

I would say if there is no spark, double check your connections at the DIS (gray module on intake crossover tube) and double check to make sure it is tight to the tube as it is a self grounding unit. Also make sure your connection to the coilpacks is good. Sounds like something simple. There are a few grounds that go on the intake but they wouldn't keep the car from starting. There really isn't much else that would have been unhooked that would cause a no spark condition unless of course you pinched an egr connection or CPS connection somewhere during the install.

 

[SHOracer14]

Any luck with this problem yet?

 

[raygunn]

No luck yet. I checked the DIS and it's nice and tight. Tell me more about the EGR connection and CPS connection. The EGR is on the back of the intake on the drivers side - a round valve with a weird tube thing that hooks on the side and points toward the back? I couldn't figure out the function of the tube thing and left it off. Could that be it?

Thanks for the followup!

 

['94SHO]

If you used the chilton book, you may have the wires mixed.. Search firing order
and you should find the correct diagram. (assuming you don't already know this.)
And the round thing in the back operates your secondaries, some one can link you to the pertinent page, I am sure..

 

[SHOracer14]

No luck yet. I checked the DIS and it's nice and tight. Tell me more about the EGR connection and CPS connection. The EGR is on the back of the intake on the drivers side - a round valve with a weird tube thing that hooks on the side and points toward the back? I couldn't figure out the function of the tube thing and left it off. Could that be it?

Thanks for the followup!

That is a good possibility on the EGR. Is the tube going down to the exhaust manifold hooked up? There should be an electrical connector and double check your connections on the DPFE (gray plastic box on back of intake just to the right of the EGR). Make sure you have everything back there hooked up correctly. Depending upon what may be unhooked it can cause a no start. As 94SHO also stated, double check your firing order. Many manuals have it wrong. The firing order should look like this:

1 2 3----
4 5 6----->Coil Packs
____________5 1
____________6 2
____________4 3

 

[raygunn]

I checked the firing order and it's correct. I also double checked the connections on the DPFE and those connections are good too. Here's a pic of the EGR and the tube I mentioned earlier.

 

[SHOracer14]

That tube should cause any adverse problems (If I remember right on the one ATX I've owned) it is just another mount for the EGR. Are there still no bolts in the EGR? Also, are you completely sure you are getting fuel. Also, are you completely sure there is no start.

 

[raygunn]

That tube should cause any adverse problems (If I remember right on the one ATX I've owned) it is just another mount for the EGR. Are there still no bolts in the EGR?

That tube should NOT(?) cause problems?
No top bolt in the egr - the gasket has moved and I'm having trouble getting the top bolt in. I was unable to get the bottom bolt out, so the egr was never removed from the intake. It is screwed in on the bottom good.

Also, are you completely sure you are getting fuel.

When I took the cap off the fuel pressure nozzle and pressed the valve, gas came out, so I assume it's getting gas.

Also, are you completely sure there is no start.

When I crank, the engine turns over but doesn't catch.

Thanks for the continued help. I know I'm throwing a vehicle speed sensor code, but will a code reader give multiple codes? I've just used it once and am not very adept at reading the beeps... Maybe I'll see if I can get multiple codes or replace the VSS and check codes again.

 

[jedhead]

You may not have enough fuel pressure for the fuel injectors. Have you pulled a spark plug to see if you smell gas?

Bob

 

['94SHO]

Pull the vacuum line at the regulator, and plug the ******. This makes the pump run wide open. (should have about 40 p.s.i.)

 

[SHOracer14]

Also, are you completely sure there is no start.

My bad typing skills again... I ment to say are you sure there is no spark?

 

[raygunn]

Running!

Thanks to everyone for all the suggestions. My dad stopped by and reviewed everything I've done. He kept coming back to the DIS as the problem. He removed it and hit both sides with some sandpaper. We hooked it back up and it started right away!

Now I've got a loud exhaust sound and some oil running across the rear valve cover. I'm guessing the oil is coming from the valve cover gasket that I didn't get installed correctly. Would that also cause the exhaust sound?

Thanks again for all the assistance.

Ray

 

[raygunn]

EGR Tube leak

Update - We removed intake and rear valve cover and reseated the gasket. Oil leak solved. The exhaust leak is coming from the EGR tube where it connects to the exhaust. The tube comes out of the exhaust freely and I can't figure out how it's supposed to seal. It doesn't appear to have broken off but there has to be a way for it to seal tightly as it's under constant pressure. Does anyone have experience with this?