91 stanza won't start

djmcd49 · Mar 19th, 2004, 12:05 PM

I need a vacuum line diagram for a ka24e engine. I'm not getting a vacuum to open the fuel pressure regulator. any help would be appreciated.

Coco · Mar 23rd, 2004, 04:53 PM

After searching and searching, I've only found this.

http://www.alldata.com/products/diy/index.html

The dealer should be able to get you a diagram.

djmcd49 · Mar 27th, 2004, 05:12 PM

Quote:

Originally Posted by Coco

After searching and searching, I've only found this.

http://www.alldata.com/products/diy/index.html

The dealer should be able to get you a diagram.

Neither the dealer or the on line have the complete diagram for this engine, was hoping someone took a picture or had one from an old manual. Please post if you do.

KA24Tech · Apr 10th, 2004, 05:16 PM

Quote:

Originally Posted by djmcd49

Neither the dealer or the on line have the complete diagram for this engine, was hoping someone took a picture or had one from an old manual. Please post if you do.

The vacuum diagram was under the hood on those models, but the vacuum apllied to the fuel pressure regulator only causes it to lower the pressure but it should be opening just at a higher pressure, unless it is bad.
The hoses should be replaced if they are brittle or cracked and I would recommend using silicone hoses since they are much more heat resistant.
I'll check with my friends at the dealer to get a copy of the diagram though.

Troy

KA24Tech · Apr 10th, 2004, 05:22 PM

Quote:

Originally Posted by djmcd49

I need a vacuum line diagram for a ka24e engine. I'm not getting a vacuum to open the fuel pressure regulator. any help would be appreciated.

If it is not starting I would recommend looking at the ignition side first. Try removing the coil wire to check for spark when you crank it. That will give a direction to start in.
Please let me know what you find.

Troy

djmcd49 · Apr 11th, 2004, 09:09 AM

Quote:

Originally Posted by KA24Tech

If it is not starting I would recommend looking at the ignition side first. Try removing the coil wire to check for spark when you crank it. That will give a direction to start in.
Please let me know what you find.

Troy

Troy; the engine fires when I use a starter fluid, but fuel is not being delivered to the injectors. the fuel blast from the supply line when removed from the pressure regulator. I installed a new pressure regulator still nothing, I need to know the vac. line since it is vacuum controlled (the pressure reg.) I'm thinking therein lies my problem. It is not on the hood nor in the manuals. Help!!

KA24Tech · Apr 12th, 2004, 03:42 PM

Have you hooked up a fuel pressure gauge because the fuel pump may be too weak to trigger the fuel injectors?
I'll get the diagram for you though...

Troy

KA24Tech · Apr 12th, 2004, 09:46 PM

I went to dealer and photo copied the Service Manual so PM me with your email address and I will send you the scanned page. The engine vacuum diagram is on a combined page that has fuel as well as input and output signals.

Troy

djmcd49 · May 7th, 2004, 05:29 PM

I have gone through all the vacuum pages, Thanks for suppling the diagram. Well it still won't crank over, I'll get a new battery this weekend. Can you or anyone tell me where the high pressure fuel pump is located. It seems that is the only part left to change. I could sure use a location and any tips on change out of it. Thanks

**Asleep** · May 8th, 2004, 07:30 PM

the fuel pump should be in the haynes manual. i think yours is like the altima, and its in the tank. pull the lower rear seat and see if there is an access panel there. if there is, the fuel pump should be below it, bolted into the tank. its not hard to do, but somewhat complicated. check the haynes or fsm before you go tearing into it.

KA24Tech · May 9th, 2004, 11:36 AM

Did you check the fuel pressure?
As Asleep said the pump is in the tank and he described how to get to it well.

My recommendation is to also check all the fuses under the hood as well as in the interior fuse panel before tearing into it.

Troy

djmcd49 · Jun 29th, 2004, 07:13 PM

ok still does anyone know where the inertia switch is located... could that possibly be the problem?

djmcd49 · Sep 11th, 2004, 07:59 AM

Update: Yes it's Sept. and this car still has not started.
I have changed the fuel pump, fuel pressure regulator, poured fuel into the fuel rail, put it back together and it fired,
before all the fuel investigaton, I installed a new coil, plugs,
ingnition module, wires etc. I have no idea where to go from here. It's almost a year since I replaced the head gasket and this car has not run yet. Any help would be greatly appreciated. I'm one step away from pushing it over the cliff.

Asura · Sep 19th, 2004, 04:07 AM

so, poured fuel into rail and it worked, but it cannot sustain good fuel flow... I think your FP relay is busted.. are u getting any fuel from the engine bay's fuel filter?

djmcd49 · Sep 26th, 2004, 09:35 AM

Quote:

Originally Posted by Asura

so, poured fuel into rail and it worked, but it cannot sustain good fuel flow... I think your FP relay is busted.. are u getting any fuel from the engine bay's fuel filter?

Yes, a good stream flows from the fuel filter located on the firewall, it shoots across the garage. Does the ECM control the fuel pressure regulator? If so, where is it located?