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Re: Weird no-start problem after CTS replacement


FilthyEvo
Junior Member


Galant VR-4 org Post #: 1155487 posted 01/11/14 08:23 PM     Remind Me!  Send Private Message   Edit Post      
Okay, well I believe I fixed the Coolant Temp Sensor wiring. The car will now fire up every time and attempts to idle by itself. It idles, around 450rpm, for about a minute before it died.

It still runs like there is a massive vac leak or it's running two cylinders. The RPM's go up so slowly with any throttle applied.

Also, the boost gauge, at idle, shows 0 on the gauge. It is not idling in vacuum.

Any ideas?

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FilthyEvo
Junior Member


Galant VR-4 org Post #: 1155581 posted 01/12/14 03:14 PM     Remind Me!  Send Private Message   Edit Post      
Car has spark at all 4 cylinders. I tested the plug wire resistance and only one was a little high, so I swapped on my back up set - which all tests nice and low.

Fixed a few grounds, and still nothing. Still runs like it's on two cylinders.

All timing marks line up.

Stumped.

Could the CAS cause the injectors firing order to be off, but still allow spark? Is there a way to test the CAS itself? Or do you have to remove it, pull the end case off, check for oil or gunk, and then reinstall to see if it's good?

I have a backup CAS, and plug, but I want to know if I can test the current one.


Edited by FilthyEvo (01/12/14 03:16 PM)

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FilthyEvo
Junior Member


Galant VR-4 org Post #: 1155617 posted 01/12/14 09:31 PM     Remind Me!  Send Private Message   Edit Post      
Tested the injectors. Resistance at around 2.1 ohms on each injector - which is in spec.

Will test the Transistor tomorrow to see if it's sending power to the injectors, as well as pulling the ECU to check for leakage/smell and to see if the caps have ever been replaced.

Any other ideas? Would the CAS have anything to go with it?

Posts: 57 | From: Barrington, NH | Member Since: 01/02/14 | IP: (65.175.219.220) | Report this post to a Moderator

vr4play
handles best on 3 tires
816/1000


Galant VR-4 org Post #: 1155632 posted 01/13/14 08:44 AM     Remind Me!  Send Private Message   Edit Post      
Have you checked all of your afc settings. If when it zero'd itself out it could have completely reset itself and you need to go in an configure the whole thing over again before the car will run right. It could be just pouring fuel in there and washing the cylinders and causing it to burn oil which can sometimes appear to be white and not blue. My car sucks oil through the turbo sometimes and when it burns it appears more white than blue.



816 of 1000
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??? of 2000
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ASE Certified Master Technician
www.Performance-Alignment.com

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FilthyEvo
Junior Member


Galant VR-4 org Post #: 1155635 posted 01/13/14 09:42 AM     Remind Me!  Send Private Message   Edit Post      
I reset the SAFC to base settings; Karmen, arrow up, 4 cyl, base settings on LO -- [(450/680) - 1] 100

Have a list of things to test today;

- Going to pull the ECU and check for leaking caps and make sure the ECU sensor ground is still intact.
- Check the Grey wire from the SAFC to ECU as throttle stays at 100% on SAFC and TPS tests good
- Another new Coolant Temp Sensor, as the last one was a different size?
- Check voltage to CTS
- New Plugs again
- Fuel Pump Relay - test and possibly bypass
- Check FPR
- CAS plug/injector plug clips/metal retainers
- Random sensor off back of thermostat
- o2 Sensor harness

I will report back after.

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vr4play
handles best on 3 tires
816/1000


Galant VR-4 org Post #: 1155636 posted 01/13/14 09:46 AM     Remind Me!  Send Private Message   Edit Post      
If my memory serves me right it is supposed to be set on 2 cylinder because it's waste spark.



816 of 1000
[email protected]
??? of 2000
[email protected] on 93oct
[email protected] on C16
[email protected] on E90
ASE Certified Master Technician
www.Performance-Alignment.com

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marvinmadman
Senior Member
136/1000


Galant VR-4 org Post #: 1155655 posted 01/13/14 11:48 AM     Remind Me!  Send Private Message   Edit Post      
You sure it isn't supposed to be on 8 cylinder? Never used an AFC...



1982/2000 sold
1263/2000 parts
136/1000 work n progress
08 ZX14
10 Ford Flex TT/AWD
05 Galant GTS

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transparentdsm
I have to say something dumb Member
138/2000


152/1000


Galant VR-4 org Post #: 1155673 posted 01/13/14 02:02 PM     Remind Me!  Send Private Message   Edit Post      
FilthyEvo - do you know how to tune with an SAFC ? not trying to be mean just asking. if you don't you should stop where you are.

read this: click

then read this: click

and in all fairness i have tuned with an SAFC and i have no idea what "base settings on LO -- [(450/680) - 1] 100" this means. its based on percentages so i really don't know what your saying.



edit: no guys it belongs on 4 cyl

and did you do a compression test yet?



138/2000
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Edited by transparentdsm (01/13/14 02:05 PM)

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mitsuturbo
Banthony
555/1000


Galant VR-4 org Post #: 1155678 posted 01/13/14 02:28 PM     Remind Me!  Send Private Message   Edit Post      
Quoting vr4play:

If my memory serves me right it is supposed to be set on 2 cylinder because it's waste spark.




This is absolutely correct. Setting it to anything else MIGHT cause tuning issues, or even make the car run awful.




Edited by mitsuturbo (01/13/14 02:36 PM)

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transparentdsm
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138/2000


152/1000


Galant VR-4 org Post #: 1155680 posted 01/13/14 02:35 PM     Remind Me!  Send Private Message   Edit Post      
please read the first link i posted. RRE isn't wrong.



138/2000
152/1000

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mitsuturbo
Banthony
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Galant VR-4 org Post #: 1155681 posted 01/13/14 02:37 PM     Remind Me!  Send Private Message   Edit Post      
This tooners thread describes the 2/4 cyl thing in more detail:
click



92 GVR4 555/1000 11.41 @ 128.26mph
97 CBR900RR
2012 Hyundai Veloster

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transparentdsm
I have to say something dumb Member
138/2000


152/1000


Galant VR-4 org Post #: 1155684 posted 01/13/14 02:41 PM     Remind Me!  Send Private Message   Edit Post      
ok so he could have it tapped to a different RPM wire then. when i have installed them(only 3 ever, 2 in my cars one in a friends) i used the manual and i had all 3 of mine set to 4cyl and never had a problem. i have to remember he didn't install the SAFC. who knows where the wiring is.



138/2000
152/1000

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vr4play
handles best on 3 tires
816/1000


Galant VR-4 org Post #: 1155688 posted 01/13/14 02:48 PM     Remind Me!  Send Private Message   Edit Post      
Quoting transparentdsm:

FilthyEvo - do you know how to tune with an SAFC ? not trying to be mean just asking. if you don't you should stop where you are.

read this: click

then read this: click

and in all fairness i have tuned with an SAFC and i have no idea what "base settings on LO -- [(450/680) - 1] 100" this means. its based on percentages so i really don't know what your saying.



edit: no guys it belongs on 4 cyl

and did you do a compression test yet?




This is from RRE's site at the bottom of the page


Troubleshooting and Common Problems:

RPM Signal off by half (1G) Because of the way that Mitsubishi triggers the ignition coils, this is normal. To fix it, just set the Cylinders to "2"
Car runs like crap, wont rev past 2-3K rpm
No change in the Hz reading on the Karman display

You read the wrong section in the manual and chose the yellow and white wires to modify the air flow signal. Wrong, you should have used the pink and orange wires.
You have a bad connection on either the pink or orange wire.
You have the pink and orange wires reversed.
You didn't select "Karman" for the air flow meter type.
No display or other power problems You have been swinging the AFC around by the wire harness. This will pull the harness out of it's internal socket. To check it or fix it, carefully unscrew the back cover with the proper small size Phillips screwdriver. Make sure the little connectors are plugged in all the way.



816 of 1000
[email protected]
??? of 2000
[email protected] on 93oct
[email protected] on C16
[email protected] on E90
ASE Certified Master Technician
www.Performance-Alignment.com

Posts: 396 | From: Cincinnati, Ohio | Member Since: 02/07/08 | IP: (74.215.234.86) | Report this post to a Moderator

transparentdsm
I have to say something dumb Member
138/2000


152/1000


Galant VR-4 org Post #: 1155690 posted 01/13/14 02:56 PM     Remind Me!  Send Private Message   Edit Post      
edit: his problem isnt that the RPM's are off by half.

right, but like i said i have done this 3 times(real life experiences) and had no issue. im not trying arguing the fact that it may need to be set to 2cyl anymore, i was before, im just saying that in my cases 4cyl worked.



138/2000
152/1000


Edited by transparentdsm (01/13/14 02:57 PM)

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FilthyEvo
Junior Member


Galant VR-4 org Post #: 1155752 posted 01/13/14 09:16 PM     Remind Me!  Send Private Message   Edit Post      
Quoting transparentdsm:

FilthyEvo - do you know how to tune with an SAFC ? not trying to be mean just asking. if you don't you should stop where you are.

read this: click

then read this: click

and in all fairness i have tuned with an SAFC and i have no idea what "base settings on LO -- [(450/680) - 1] 100" this means. its based on percentages so i really don't know what your saying.

Compression test and pulling the ECU in the morning.

edit: no guys it belongs on 4 cyl

and did you do a compression test yet?




To compensate for the larger injectors (680cc) I set -30% across the LO setting as a base. To get this number; (450/680) -1*100. Stock injectors (450) divided by new injectors. (See post #6: click

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FilthyEvo
Junior Member


Galant VR-4 org Post #: 1155950 posted 01/15/14 02:35 PM     Remind Me!  Send Private Message   Edit Post      
Well, I believe I found my issue.

Cracked open the ECU, and this is what I found;








Does it look repairable or should I start looking for a new ECU?

Not sure who Spectre S2 is either.

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mitsuturbo
Banthony
555/1000


Galant VR-4 org Post #: 1155952 posted 01/15/14 02:39 PM     Remind Me!  Send Private Message   Edit Post      
Ewwwww.. NON EPROM FTL!

Find a good eprom ecu. You're going to need it when you buy Link.



92 GVR4 555/1000 11.41 @ 128.26mph
97 CBR900RR
2012 Hyundai Veloster

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transparentdsm
I have to say something dumb Member
138/2000


152/1000


Galant VR-4 org Post #: 1155954 posted 01/15/14 02:44 PM     Remind Me!  Send Private Message   Edit Post      
^ +1



138/2000
152/1000

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FilthyEvo
Junior Member


Galant VR-4 org Post #: 1155959 posted 01/15/14 03:04 PM     Remind Me!  Send Private Message   Edit Post      
Quoting mitsuturbo:

Ewwwww.. NON EPROM FTL!

Find a good eprom ecu. You're going to need it when you buy Link.




Will do. I'm searching the classifieds now.

Is this ECU junk? This was causing my issues? Can it be fixed and converted?

If you guys could point me in the right direction, it would be much appreciated?

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mitsuturbo
Banthony
555/1000


Galant VR-4 org Post #: 1155961 posted 01/15/14 03:15 PM     Remind Me!  Send Private Message   Edit Post      
It may not be "junk" but it certainly should be cleaned up. Those bare contacts look like they're just waiting for corrosion to begin. Whoever worked on that did a really amateur job on it. They may have known just enough to be dangerous, yet did manage to fix the ecu so it would work. I wouldn't be confident using that as anything other than possibly a diagnostic spare, at best. I'm sure it could probably be cleaned up properly, and fixed professionally, but i'm not sure a non eprom is really worth the effort.

edit: ecmlink has been socketing non eprom units for some time now but you'll have to get that thing professionally repaired anyway. You'd be better off finding a fresh eprom, preferably with a socket. It would likely cost you around the same as having that one fixed up.



92 GVR4 555/1000 11.41 @ 128.26mph
97 CBR900RR
2012 Hyundai Veloster


Edited by mitsuturbo (01/15/14 03:17 PM)

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FilthyEvo
Junior Member


Galant VR-4 org Post #: 1155967 posted 01/15/14 03:33 PM     Remind Me!  Send Private Message   Edit Post      
Cool, thanks for the info.

So to clarify, this should be the source of all my problems?

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mitsuturbo
Banthony
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Galant VR-4 org Post #: 1155969 posted 01/15/14 03:41 PM     Remind Me!  Send Private Message   Edit Post      
Difficult to say, but the fact that "eye" has had all the black goo removed from the top of it is also not a good sign. I certainly would NOT trust it.



92 GVR4 555/1000 11.41 @ 128.26mph
97 CBR900RR
2012 Hyundai Veloster

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FilthyEvo
Junior Member


Galant VR-4 org Post #: 1155972 posted 01/15/14 04:02 PM     Remind Me!  Send Private Message   Edit Post      
I'm under the impression 1G (91-94) TEL Turbo AWD ECU's are compatible?

If so, I'll be testing one tonight or tomorrow.

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mitsuturbo
Banthony
555/1000


Galant VR-4 org Post #: 1156205 posted 01/17/14 10:24 AM     Remind Me!  Send Private Message   Edit Post      
You would be correct. The 91-94 ECUs are identical except for the case and the actual eprom chip on them, i believe.



92 GVR4 555/1000 11.41 @ 128.26mph
97 CBR900RR
2012 Hyundai Veloster

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FilthyEvo
Junior Member


Galant VR-4 org Post #: 1156242 posted 01/17/14 01:03 PM     Remind Me!  Send Private Message   Edit Post   
Tested a known good rebuilt ECU.

Car fired right up, but having some weird issues now.

Car still idles high. Once I shut it off, it would not restart. Radiator was extremely hot, and smoke was coming from around this area.

I took videos, and will try to load them.

Who wants an invite to the bonfire? Ugh.

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