Klze Swap problems

timpronk · Post by **timpronk** » June 4th, 2005, 8:26 am

Are your fuel lines switched? That is a fairly common error when installing a motor in a mx3. Or a ground is not connected possibly.

skdrcr · Post by **skdrcr** » June 4th, 2005, 10:54 pm

timpronk wrote:Are your fuel lines switched? That is a fairly common error when installing a motor in a mx3.

You know, that could be a possibility because we've tried 2 sets of injectors on it and neither of them seem to work.

For some reason, the K801 ECU is not registering any cel codes,
while the KL08 ecu is giving a code 12, 16, 29.

We've tried the KL02 VAF with both ecu's as well.

I guess I can switch the lines around and see what happens.

If one line goes from the fuel filter to the fuel rail,
where does the other line go to/come from?

skdrcr · Post by **skdrcr** » June 4th, 2005, 10:57 pm

Zoso124 wrote:The KL31 and KL36 will both work fine, I know cause I've had both, and don't use the K8 Intake manifold if you have a ZE - Curved perferrably.

The only manifold we have is the curved k8 one.

We got the straight klze intake manifold and don't feel like
relocating the battery to use it when we're just gonna get the
milenna manifold in the near future.

It should still run with the k8 manifold shouldn't it?

vozaday2000 · Post by **vozaday2000** » June 5th, 2005, 1:16 pm

a good way to check if you have your fuel lines switched is to turn on the key and see if you fuel pump is turning. if it isn't then the lines are switched. the fuel will try to go in the wrong way and be blocked off so tha max pressure is reached and the fuel pump shuts off. that is exactly what happened to me.

yes it should work with the k8 manifold but you will be losing a little bit of performance because the throttle body and the runners are smaller than on the ze intake manifold.

skdrcr · Post by **skdrcr** » June 5th, 2005, 2:42 pm

vozaday2000 wrote:a good way to check if you have your fuel lines switched is to turn on the key and see if you fuel pump is turning. if it isn't then the lines are switched. the fuel will try to go in the wrong way and be blocked off so tha max pressure is reached and the fuel pump shuts off. that is exactly what happened to me.

We took out the back seat already and pulled the line off the fuel pump,
then turned the key foward and it shot out fuel just fine.

Is that what you mean?

skdrcr · Post by **skdrcr** » June 6th, 2005, 2:17 am

We have also undone the fuel rail nut and turned the key
foward. Fuel was leaking out so I'm pretty sure that fuel
is getting to the rail.

I'll probably pull one of the injectors out and see if it
sprays.

skdrcr · Post by **skdrcr** » June 6th, 2005, 8:05 pm

We picked up another VAF and ecu out of a 2.5 probe gt today,
we'll see if we get lucky.

PATDIESEL · Post by **PATDIESEL** » June 7th, 2005, 12:46 am

Make sure the VAF is facing the right way. I feel stuid saying this, but I installed it backwards and it took a few minutes to find what i had done. The motor will suck it closed instead of open and starve the motor for air. It will run for just a sec and then cut off or run with starter fluid, but not on its own. Make sure the fuel line goes from the hard line the the intake line that doesn't have the FPR, then from the FPR back to the filter and then the other hard line. As for which line is incoming fuel you can take both rubber lines off the hard line at the firewall and have someone watch (with goggles on) as to which hard line on the firewall squirts. Check for good spark at the plug. Any car should start with three basic components, air spark and fuel, it has to be one of them. Everyhting else just helps it run efficiently and smoothly.

skdrcr · Post by **skdrcr** » June 7th, 2005, 1:03 am

PATDIESEL wrote: Make sure the fuel line goes from the hard line the the intake line that doesn't have the FPR, then from the FPR back to the filter and then the other hard line. As for which line is incoming fuel you can take both rubber lines off the hard line at the firewall and have someone watch (with goggles on) as to which hard line on the firewall squirts.

What do you mean by intake line, the fuel line near the intake?

So the line with the incoming fuel should be connected to the line
going into the fuel rail?

facko · Post by **facko** » June 7th, 2005, 11:42 am

yea the in line goes to the fuel rail and the fuel return line comes off of the fpr (pretty sure thats how it works)

lakersfan1 · Post by **lakersfan1** » June 7th, 2005, 1:31 pm

facko wrote:yea the in line goes to the fuel rail and the fuel return line comes off of the fpr (pretty sure thats how it works)

Yep. If you follow the fuel lines ..........

The one that comes off the fuel filter does NOT go to the rail with the fuel pressure regulator.

wyldside · Post by **wyldside** » June 8th, 2005, 10:00 am

Are there any large vacuum lines that you may have forgotten to plug or connect? A large loss of Vacuum in the Intake Manifold would cause the car to shut off at idle. Are you able to rev the car up at all right at startup?

Custommx3 wrote:...We've done quite a few swaps where we either used a KL IM or a Millenia/MS8 mani with the k8 ECU/VAF.

Please Note for the 100th time to everyone - Millenia and MS8 are not the same style of intake manifold. They may look like similar cars but they are definitly not the same intake. See below...

These are a few pics of Mazda/Efini MS8 2.5L V6 cars from Japan.

This is a Mazda Millenia 2.5L V6 (Eunos800 in Japan, Xedos9 in Europe)

This is a picture of the Intake Manifold off of a MS8 compaired to a Millenia Intake Manifold.

Someone should add these images to the FAQ under "K-Series Intake Manifolds"

lakersfan1 · Post by **lakersfan1** » June 8th, 2005, 10:23 am

I don't know where the confusion comes. The Eunos 800 is the Millenia, the MS8 is nothing like any American market car.

wyldside · Post by **wyldside** » June 8th, 2005, 10:29 am

Yes Exactly! I think all the confusion started long ago when someone got them mixed up and passed on the wrong info.

The Xedos9 is the same style as the Millenia as well if I'm not mistaken. Here's a Xedos9 Engine Bay.

skdrcr · Post by **skdrcr** » June 8th, 2005, 10:48 am

Well fellas, we finally got her to stay running.

There was a bad relay inside of the ecu, we changed that and
it's running now, but the motor is out of time though.

The spark plugs are soaked with fuel.

When we tried to adjust the timing via the distributor nothing
happened, the motor sounded exactly the same so we
popped off the tb cover and the belt is so loose that it
does nothing when you adjust the distributor.

Apparently there is no tensioner bolt to adjust the tension
on the outside of the cover so we're gonna have to pull the
whole cover off and recheck all the timing marks and adjust
the tension there.

I noticed on the underside of the transmission there is a whole
where you can see the flywheel. I assume that's where you
can check it with a gun but I didn't see any other marks to
line it up with the flywheel mark. Do you just line it up in the
canter of the hole?

Is it supposed to be at 15% btdc?

Thanks for all the help fellas.

It's almost there

We will be picking up a kl36 ecu in the near future as well.
You use the JE50 VAF with that ECU if I'm not mistaken.