1G Trouble shoot assistance needed

[asshanson]

Check for leaking capacitors on the ECU by taking the cover off.
It takes just a few minutes to check base timing, get a timing light and see where it's at.

If you're sure there are no vacuum leaks then check the resistance between the IAC coils, I think they should be around 40 ohms? There is a how-to on VFAQ.

[4seasons69]

as for the smoke and black liquid out the exhaust it sounds like you are burning a lot of oil. who rebuilt the engine?? just because someone rebuilt it doesn't mean they know what they are doing and did it right. a few things that can cause oil burning are the turbo, rings, valve guide seals, worn valve guides, excessive bearing clearances. just a few things to check

[Chim55117]

The Keydiver is chipped for the 560's, and 3G MAS. Longblock and head from this thread:

http://www.mitsustyle.com/forums/showthread.php?t=23485

[Kracka]

1. With your TB and MAS mods I wouldn't be surprised if a 1,100 RPM idle was the best you got out of it.
2. The car sounds to be running extremely rich and you may have a plugged PCV valve.
3. As previously discussed.
4. Sounds normal; most likely the exhaust contracting after getting heated and expanding.
5. Thank you for taking the time to properly form your post. As you can see, when you make things easy to read many people are willing to help out.

[jrohner]

1)The car idles horribly.
We fixed the intake leak, purchased new O-rings and seals for the injectors (Mitsubishi dealership parts), but the car still idles like crap. The car holds it's idle at 500rpm even when we tried adjusting the BISS screw. After adjusting the BISS screw, it would jump up to 1300rpm. We steadily lowered the rpm to about 1100 rpm (Anything under 1100 and it will go straight to about 450-500rpm)

2) The car produces an exponential amount of smoke from the exhaust pipe(we were told it is because it's running EXTREMELY rich) as well as from the oil cap(when opened). We do believe that it's running very rich, but why? The smoke starts as a bit whitish, but turns bluish. As if it was burning oil. It literally pours smoke. It will drip black colored fluid out the exhaust tip, as well as shoot it a distance of roughly 3feet.( Contacted the seller about it as well, according to him it is due to the carbon build up and condensation) At one time we opened the the oil cap to take a look at what was going on while the car idled. As soon as we opened it a pressurized amount of smoke (grayish color) went shooting up into the hood. You can smell a strong scent of gas. The smoke would continue to rise out the valve cover for close two 20minutes. The car idled for only 3 to 4 minutes at max. The smoke would continue to rise out the valve cover from the oil cap opening for 20minutes.When i pulled the dipstick to check the texture of the oil. It was not slippery, more like slightly gripe.

3) Car won't go into reverse.

4) When we turned the vehicle of after approximately 30seconds a knocking noise will start. It continues in a timely manner. In a interval of about 7seconds ting......ting.......ting........ I have no idea what it could be.


1&2: To me sounds like the ECU. Open it up and take a look for a burned spot or goo (mostly near the 3 capacitors).

3: Take the end cover off the tranny, there's a good chance the issue is right there, or it can at least be diagnosed from there.

4: The sound you are describing is just the exhaust cooling off; you may also hear a drip sound which is probably the oil draining down out of the head.

It's going to be hard to properly break in a new engine with the idle/rich issue. As well as being just overall hard on the engine with the possible cylinder wash running that rich (plus contaminating the oil).

Do a compression check as well to make sure it isn't just a non-sealing head gasket, as that will make it idle bad and seem rich. Is the oil milky at all? If so, coolant is in the oil.

As soon as you get it running right, change the oil before even driving it at all.

[jrohner]

Unfortunately i do not know what the keydiver chip is adjusting for fuel. I will try to contact the seller, and inquire if he knows the specific set up. I doubt he will know these details though. It could very well be a ECU issue. Is there any possible way i can check the ECU?

Keydiver puts a full description at the beginning that can be read in a hex editor, so if you know anyone with a chip burner they can check it for you, as well as check to see if anyone modified it after keydiver did it.

[scheides]

Yay actual info!

After you fixed all of the boost leaks, did you fire it up again? How did it idle and how did it run? If it actually had *zero* miles on it I would expect it to smoke a little upon startup, 30 seconds is not very long. Unless it is making bad noises or you suspect bad problems, let it run until its fully up to operating temp.

Pull the ECU out, yank the cover off, and look at what the label says on the EPROM. Keydiver should label his chips. Take a picture of it, post it here, or whatever it says on it.

Verify that the MAS is actually operating properly! Do you have a logger? Or another MAS you can swap in? If its either not wired properly or damaged (since its used) it could be causing the above problems. Logging is the ONLY way to verify its actually operating correctly.

So, my list:
-check eprom
-Do a compression test.
-Get someone experienced to help you do a leakdown test.
-Get a logger, log it.

You mentioned oil and coolant leaks in the other thread, but not here. Get those solved?

[Kevin 1G Drummer]

so, my list:
-check eprom
-do a compression test.
-get someone experienced to help you do a leakdown test.
-get a logger, log it.

+1.

[Alpha D]

Ok. So i need to check the ECU itself. I can inspect it for leaky capacitors. I do not have a logger though. The car does not have a safc, dsm, link, or wideband. Regarding the MAS i do not have a second one to replace it with.

-How can i check for a bad wiring job?

-Should I take the Computer into elite, or map for inspection?

-I do not want to let the car idle for to long yet drive it. So should i take the MAS with me when i take it in to get inspected?

[Alpha D]

Regarding the coolant I could not find a leak. I tighten all the hoses down, and am hoping it was something minor like that. The oil pan is really oily. It is not a bad leak though. I also looked under the car, and realized black fluid dripping from the flex pipe as well. The valve cover is leaking oil.It is not bad enough to make its way to the button of the car. I will be replacing it with a new one soon.