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-   -   My Pile Won't Start! (http://www.mitsustyle.com/forums/showthread.php?t=22553)

123abc 03-18-2009 07:44 AM

My Pile Won't Start!
 
This last monday, me and twack changed out my fuel pump for an evo 9 pump. While I was buttoning up the rear of the car, I gave twack the okay to extend my maf-t harness. Got that all done, hooked it up, and nothing. At that time I was getting no MAF signal on my logger. So, yesterday I shortened it back up, hooked it up, still nothing. Just cranks. The only time I get anything is when I unhook all the injector clips. Then it sputters a bit but still doesn't start. I'm getting plenty of fuel, the pump is working so I've ruled that out as a problem.

I would check the plugs, and 3 out of the 4 are soaked in gas. The car was running tip top up untill we did the fuel pump and extended the maft harness.

Anyone have any ideas? I spent 3 hours searching threads on tuners but can't find any case that was similar to mine. I let the car sit over night with the plugs out to dry so when I get off work today I'll fuck with it some more.

niterydr 03-18-2009 07:54 AM

Re: My Pile Won't Start!
 
Sounds like the injectors are leaking/constantly on. Did any of the MAF wiring get crossed?

123abc 03-18-2009 07:59 AM

Re: My Pile Won't Start!
 
Quote:

Originally Posted by niterydr (Post 281497)
Sounds like the injectors are leaking/constantly on. Did any of the MAF wiring get crossed?

It was messed up before, but I shortened it back up yesterday and I am getting a reading of .37 or something like that on the logger during cranking. After twack had extended it, I wouldn't get any maf reading. I had thought the injectors were to blame, but it doesn't make much sense because no body messed with them. Only thing we did was take the feed line off the rail to check to see the pump is working.

Another thing, I have messed with the translator trying to lean the shit out to get it started but it doesn't make a difference.

I have kracka's evo9 injectors on the way, you think that will fix it?

scheides 03-18-2009 09:23 AM

Re: My Pile Won't Start!
 
Do you get any reading (in hz) on your logger? When my maf-t got wet a few times or it was hooked up wrong I would get like exactly 4hz no matter what I did. You should see something register while cranking.

Make sure your CAS is hooked up, maybe try swapping that out. They are sensitive. You sure somethign else isn't unplugged? The coilpack/igniter/etc?

123abc 03-18-2009 06:17 PM

Re: My Pile Won't Start!
 
I have cop, i've tried my old coil pack and wires, the maf-t is fine, i read about 37 hz under cranking, 3% injector duty cycle, 27 something for a pulse width. I just put in Kracka's 560's today and it's doing the same damn thing.

The only thing is the translator's green led blinks sometimes.

Kracka 03-18-2009 06:24 PM

Re: My Pile Won't Start!
 
What does the green LED mean?

123abc 03-18-2009 07:18 PM

Re: My Pile Won't Start!
 
I have no idea what the green led means. The translator seems to be working as it always does. I've tried it with no rpm wire, trying to lean it way out on the dials, but no luck. I'm about to start doing some custom body work real soon...

Halon 03-18-2009 07:38 PM

Re: My Pile Won't Start!
 
So it ran before. And all you did was swap in a new fuel pump, and messed with the MAFT wiring, and now it doesn't work?

Have you checked to make sure the MPI fuse isn't blown? Have you checked to make sure you didn't knock any connectors loose while doing any of this? Do you have good compression? Have you tried playing with the gas pedal while trying to start it? I believe if you hold the gas all the way down while turning it over, it should shut the injecors off, which may be useful if everythings all flooded. Do you have an extremely high coolant temperature reading on whatever logging application you have? Do you have a spare ECU you can swap in? Are you certain you are getting spark?

123abc 03-18-2009 07:43 PM

Re: My Pile Won't Start!
 
Quote:

Originally Posted by Halon (Post 281612)
So it ran before. And all you did was swap in a new fuel pump, and messed with the MAFT wiring, and now it doesn't work?

Have you checked to make sure the MPI fuse isn't blown? Have you checked to make sure you didn't knock any connectors loose while doing any of this? Do you have good compression? Have you tried playing with the gas pedal while trying to start it? I believe if you hold the gas all the way down while turning it over, it should shut the injecors off, which may be useful if everythings all flooded. Do you have an extremely high coolant temperature reading on whatever logging application you have? Do you have a spare ECU you can swap in? Are you certain you are getting spark?

Which one is the mpi fuse?

Yes I'm sure. I did a semi wire tuck myself and I know where each connector is. I've checked them 4 times each.

Yes, good compression. Always have.

I hold it to the floor, nothing.

Coolant temp reading is about right.

No spare ecu.

Thanks guys for trying to help me. Its too damn dark out right now to try anything though.

Halon 03-18-2009 07:55 PM

Re: My Pile Won't Start!
 
mpi relay is basically located right on the battery. There are 3 fuese that are on one of the power cables that attaches right to the battery terminal. It's the one you typically pull when doing a compression test.

123abc 03-18-2009 08:04 PM

Re: My Pile Won't Start!
 
Quote:

Originally Posted by Halon (Post 281614)
mpi relay is basically located right on the battery. There are 3 fuese that are on one of the power cables that attaches right to the battery terminal. It's the one you typically pull when doing a compression test.

Yeah, I have 3 fuses on that block. I haven't done a compression test in over a year, so idk which one it is. If im getting fuel, why would it be the mpi fuse?

Kevin 1G Drummer 03-18-2009 08:08 PM

Re: My Pile Won't Start!
 
I'm pretty sure the green LED should be constantly on if the key is on. With mine, the green and red LEDs both come on when I turn the key to the on position, but the red one goes out after a few seconds.

123abc 03-18-2009 08:09 PM

Re: My Pile Won't Start!
 
http://www.mitsustyle.com/photopost/...m/P1190014.JPG

Thats a really old pic of my car. Which fuse is what on that fuse block?

123abc 03-18-2009 08:09 PM

Re: My Pile Won't Start!
 
Quote:

Originally Posted by Kevin_1G_Drummer (Post 281616)
I'm pretty sure the green LED should be constantly on if the key is on. With mine, the green and red LEDs both come on when I turn the key to the on position, but the red one goes out after a few seconds.

On mine, both come on for a second or 2, then both go off.

Super Bleeder!! 03-18-2009 08:40 PM

Re: My Pile Won't Start!
 
No LED blink at key on: check power feed to Translator, check connections, check fuse.

RED LED is blinking: The MAF Translator has internal trouble codes that are blinked out using the RED LED




Green LED
OFF = idle
DIM = Part throttle/cruise (In RPM mode, the green LED turns on at 1000 RPM)
ON = MID

Red LED
OFF = No WOT modes are operating
DIM= WOT mode
ON = WOT mode and AUX Trigger is activated.

JET 03-19-2009 12:16 AM

Re: My Pile Won't Start!
 
I've got dibs on the fuel pump. Are you sure it is installed correctly? Even if there is fuel it may not be high enough pressure.

twack 03-19-2009 12:39 AM

Re: My Pile Won't Start!
 
Quote:

Originally Posted by JET (Post 281633)
I've got dibs on the fuel pump. Are you sure it is installed correctly? Even if there is fuel it may not be high enough pressure.

it sucks on a fwd but im guessing this to

123abc 03-19-2009 07:41 AM

Re: My Pile Won't Start!
 
Is there a way to check the fuel pressure with the stock regulator in place?

Kevin 1G Drummer 03-19-2009 07:49 AM

Re: My Pile Won't Start!
 
Quote:

Originally Posted by Super Bleeder!! (Post 281619)
No LED blink at key on: check power feed to Translator, check connections, check fuse.

RED LED is blinking: The MAF Translator has internal trouble codes that are blinked out using the RED LED




Green LED
OFF = idle
DIM = Part throttle/cruise (In RPM mode, the green LED turns on at 1000 RPM)
ON = MID

Red LED
OFF = No WOT modes are operating
DIM= WOT mode
ON = WOT mode and AUX Trigger is activated.

Well there ya go. It's been a while since I looked at mine, and I thought I remembered the green one being on all the time. I guess I was wrong.

123abc 03-19-2009 08:03 AM

Re: My Pile Won't Start!
 
If it wasn't under enough pressure though, how come if I let the car sit for 5 seconds after trying to start it, and try starting it again, it stumbles and wants to start?

To me, it seems like I'm not getting enough spark or I'm getting too much fuel.

twack 03-19-2009 09:22 AM

Re: My Pile Won't Start!
 
so check your spark

Kevin 1G Drummer 03-19-2009 06:37 PM

Re: My Pile Won't Start!
 
It could be that after 5 seconds of the pump running without the engine cranking, it's able to build enough pressure for it to almost start, but then quickly runs out of pressure?

123abc 03-19-2009 07:31 PM

Re: My Pile Won't Start!
 
So I'm getting spark, but 1-3 is about half as strong as number 4. When I pulled them out, all 4 were still really soaked with gas from yesterday. number 3 wasn't too bad though.

Check the 3 fuses on the fuse block, all 3 are fine.

JET 03-19-2009 11:47 PM

Re: My Pile Won't Start!
 
Quote:

Originally Posted by 123abc (Post 281654)
If it wasn't under enough pressure though, how come if I let the car sit for 5 seconds after trying to start it, and try starting it again, it stumbles and wants to start?

To me, it seems like I'm not getting enough spark or I'm getting too much fuel.

90% sure that is the fuel pump. You are giving it enough time to build up a little bit of pressure, so it tries to start, but it won't because the pressure drops off again. I had the same exact thing happen to my starion when the pump was getting flaky.

Kevin 1G Drummer 03-20-2009 07:42 AM

Re: My Pile Won't Start!
 
Quote:

Originally Posted by Kevin_1G_Drummer (Post 281810)
It could be that after 5 seconds of the pump running without the engine cranking, it's able to build enough pressure for it to almost start, but then quickly runs out of pressure?

Quote:

Originally Posted by JET (Post 281864)
90% sure that is the fuel pump. You are giving it enough time to build up a little bit of pressure, so it tries to start, but it won't because the pressure drops off again. I had the same exact thing happen to my starion when the pump was getting flaky.

;) haha

123abc 03-20-2009 08:32 AM

Re: My Pile Won't Start!
 
So what would cause it to not have enough pressure? I'm more than likely going to pull the pump out this weekend and check it.

JET 03-20-2009 03:02 PM

Re: My Pile Won't Start!
 
Usually it is the pump not being installed correct and leaking after the pump. Usually it is the O-ring being bad or out of position.

123abc 03-20-2009 08:02 PM

Re: My Pile Won't Start!
 
Well, tomorrow night i'll probably pull the pump back out and check it.

123abc 03-22-2009 04:51 PM

Re: My Pile Won't Start!
 
Quote:

Originally Posted by JET (Post 281864)
90% sure that is the fuel pump. You are giving it enough time to build up a little bit of pressure, so it tries to start, but it won't because the pressure drops off again. I had the same exact thing happen to my starion when the pump was getting flaky.

Thankyou Jet and Kevin. The rubber line between the pump and the hard line was leaking in the tank. Fix that, and she started right up. However, my lines outside the tank are so rusted that they're leaking now that they have pressure.

So now I get to drop the tank and replace all the hard lines. Does anyone know where I could find a new or good conditioned 1g fwd pump assembly?

123abc 03-24-2009 08:09 AM

Re: My Pile Won't Start!
 
I fixed up all the leaks now on the feed line. I cut off the stock metal line that goes through the pump housing and instead got some brass fittings with barbed ends and sandwiched them in there. No leaks on that end, but when I started it up yesterday to try it out, I now have a leak on the return line.

It's the metal line on top of the tank that takes a 90 degree bend and right where it goes into the tank theres like a pinhole sized leak. So I jb welded it and we'll see if it holds. I might even put a second layer over it today after work now that the first layer has hardened and set up.

I guess if it isn't one thing it's sure as hell going to be another. If I never have to drain that gas tank or smell 92 octane ever again I'll be so happy.


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