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Re: NOT AGAIN !!! Hi it has been a while. Now Head gasket issue 90 LWB [Re: Jay Ayala] #1077406 08/18/15 06:12 PM
Joined: Feb 2001
Posts: 1,979
JAVYPRO Offline OP
Body Damage is Cool
Well, my joy didn't last long.

Engine is purring like a kitten and after a week of finishing it, yesterday i was driving home from the office when all the lights on the dash came on and the engine died.

It crank but doesn't start and I and suspecting it is the ECU since I got spark and fuel and everything else is new. I suspect is the ECU because on Friday I was at a traffic light and the revs went from 700 +/- to 2k and back to normal at 700, like a spike sent from the ISC.

So, I am searching for a 1990 ECU. I am tired of these ECU issues so I am looking into the MegaSquirt, even when not in my budget for now, as an alternative for a near future project.

So in the meantime Jacobo, red SWB with 500K miles, comes to save the day as daily driver once more.

Javy


88 red Montero with the Dakar Special Edition decals, 438,000 miles (As of 7/23/2012) some occational blue puffing but still strong and counting!!! I am going ppsshhh (turbo), Stay tuned =) ...
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Re: NOT AGAIN !!! Hi it has been a while. Now Head gasket issue 90 LWB [Re: JAVYPRO] #1077407 08/19/15 04:12 AM
Joined: Jul 2001
Posts: 785
Movinfr8 Offline
Rock Warrior
Sorry to hear about this, I've been off the forum since selling my 95 to my brother in law, and I've been looking a little for a short wheel base, and just reading the posts. Not sure I want a 26 year old truck, but they just don't build anything like these any more!


87 raider 2.6
5-speed manual
Re: NOT AGAIN !!! Hi it has been a while. Now Head gasket issue 90 LWB [Re: Movinfr8] #1077408 09/01/15 05:24 PM
Joined: Feb 2001
Posts: 1,979
JAVYPRO Offline OP
Body Damage is Cool
Question for those of you with the V6. When you switch to the ACC position on your ignition can you hear the electric fuel pump kicking? To tell you the truth i have not paid attention to it until now.

Mine cranks and out of the coil I have no spark, I thought that was my issue so I visited my local O'Reilly's and it happen that my coil, with lifetime warranty, is now obsolete and a new model is replacing it. They gave me the new model to replace my "bad" coil, I tried it and still I have no spark so I am more inclined to believe in my ECU problems.

But again, as I mentioned above can you hear your fuel pump with the key at ACC?

Javy


88 red Montero with the Dakar Special Edition decals, 438,000 miles (As of 7/23/2012) some occational blue puffing but still strong and counting!!! I am going ppsshhh (turbo), Stay tuned =) ...
Re: NOT AGAIN !!! Hi it has been a while. Now Head gasket issue 90 LWB [Re: JAVYPRO] #1077409 09/01/15 07:51 PM
Joined: Aug 2014
Posts: 173
danz91crx Offline
Wheeler
No, the fuel pump only runs while cranking the engine.
The harness for the ignition control module are a known problem and could cause a no spark condition. Both the ICM and ECU have test methods in the FSM.


1990 LWB RS A/T
1990 LWB Base A/T
1991 LWB LS A/T Going...Going...
Re: NOT AGAIN !!! Hi it has been a while. Now Head gasket issue 90 LWB [Re: JAVYPRO] #1077410 09/02/15 03:50 AM
Joined: Feb 2011
Posts: 27
9
90rustymontero Offline
Getting the Wheeling Fever
Hey dude,

If it does turn out to be your ECU, I've got a spare for a '90 you can have for like $20 + shipping. It's just sitting in my garage collecting dust.


1989 Mitsubishi Montero SWB V6, Aisin manual hubs, gen 2 front brakes/rotors, rear LSD, A44DL lock-up transmission, BFG 33's.
Re: NOT AGAIN !!! Hi it has been a while. Now Head gasket issue 90 LWB [Re: 90rustymontero] #1077411 09/02/15 02:07 PM
Joined: Feb 2001
Posts: 1,979
JAVYPRO Offline OP
Body Damage is Cool
Quote
No, the fuel pump only runs while cranking the engine.
The harness for the ignition control module are a known problem and could cause a no spark condition. Both the ICM and ECU have test methods in the FSM.


Thanks, I am undusting my FSM to see if I can pinpoint my problem.

Quote
Hey dude,

If it does turn out to be your ECU, I've got a spare for a '90 you can have for like $20 + shipping. It's just sitting in my garage collecting dust.


Sending you a PM

Thanks guys,
Javy


88 red Montero with the Dakar Special Edition decals, 438,000 miles (As of 7/23/2012) some occational blue puffing but still strong and counting!!! I am going ppsshhh (turbo), Stay tuned =) ...
Re: NOT AGAIN !!! Hi it has been a while. Now Head gasket issue 90 LWB [Re: JAVYPRO] #1077412 09/02/15 02:53 PM
Joined: Feb 2001
Posts: 1,979
JAVYPRO Offline OP
Body Damage is Cool
90rustymontero,
Tried to send you a PM but I am having problems, might be the web page or the fact that I am at the office. Also tried to send you an e-mail but bounced back.

Anyway, I want the ECU send me a PM or e-mail me at javypro@bellsouth.net

Thanks,
Javy


88 red Montero with the Dakar Special Edition decals, 438,000 miles (As of 7/23/2012) some occational blue puffing but still strong and counting!!! I am going ppsshhh (turbo), Stay tuned =) ...
Re: NOT AGAIN !!! Hi it has been a while. Now Head gasket issue 90 LWB [Re: JAVYPRO] #1079170 10/01/15 04:47 PM
Joined: Feb 2001
Posts: 1,979
JAVYPRO Offline OP
Body Damage is Cool
Guys,
Back to square one. Got the ECU repaired, installed it cranked it and NOTHING. It cranks but it doesn't start.

I am checking today my fuel pressure and spark. The weird issue is that I am not getting spark not even with a new coil, could it be the ignition module? it is that one that seats next to the coil, right?

What else can I check?

Javy


88 red Montero with the Dakar Special Edition decals, 438,000 miles (As of 7/23/2012) some occational blue puffing but still strong and counting!!! I am going ppsshhh (turbo), Stay tuned =) ...
Re: NOT AGAIN !!! Hi it has been a while. Now Head gasket issue 90 LWB [Re: JAVYPRO] #1079173 10/01/15 05:31 PM
Joined: Aug 2014
Posts: 173
danz91crx Offline
Wheeler
Could be the ICM along with many other things. Testing components and checking connections is all I can suggest. Make sure your ECU plugs are all pushed in all the way, no wires came out of the plugs, the ground is hooked up. Look at check engine light operation. Check the main relay by listening for it to click after cranking and or unbolting it and taking the cover off. Test the ICM and both sides of the coil as described in the FSM. The dizzy could be a problem too...


1990 LWB RS A/T
1990 LWB Base A/T
1991 LWB LS A/T Going...Going...
Re: NOT AGAIN !!! Hi it has been a while. Now Head gasket issue 90 LWB [Re: danz91crx] #1079249 10/09/15 02:37 PM
Joined: Feb 2001
Posts: 1,979
JAVYPRO Offline OP
Body Damage is Cool
Originally Posted by danz91crx
Could be the ICM along with many other things. Testing components and checking connections is all I can suggest. Make sure your ECU plugs are all pushed in all the way, no wires came out of the plugs, the ground is hooked up. Look at check engine light operation. Check the main relay by listening for it to click after cranking and or unbolting it and taking the cover off. Test the ICM and both sides of the coil as described in the FSM. The dizzy could be a problem too...


OMG, this is insane. I tested all the sensors and relays and it all pointed to the crankshaft position sensor. Alright, time to place it back on TDC and remove the ignition.

Well, with the cap off I turned the engine and the ignition rotor did not move, WAIT A MINUTE!!! took the driver side camshaft cover off shocked belt was broken!!!

well Rockauto was a good price but the local O'Reilly had the Gates brand for $60 including the tensioner and I needed to get it running ASAP to I bought it.

Then to remove the crankshaft bolt I bought an impact wrench but the sucker still wouldn't come off, it likely has some thread locker. So, time for desperate measurement, with my ball pein hammer I bent the edge of the spacer between the timing gear on the crankshaft and the balancer, just about the width of the belt I slid the belt in very carefully and DONE.

It is running like a champ, now I just need to figure out why the tach is not working maybe I missed a wire or something.

Javy


88 red Montero with the Dakar Special Edition decals, 438,000 miles (As of 7/23/2012) some occational blue puffing but still strong and counting!!! I am going ppsshhh (turbo), Stay tuned =) ...
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