Question about 1995 Mitsubishi Montero

3 Answers

95 mitsubishi montero is not starting. I have recently replaced the head gaskets and the vehicle started the first time i ran the vehicle for an hour and then it hasn't started since then. it tries to start, but it only fires on the first coil pack. I checked the other coils packs and even switched them out and they fire under the first pack position. I have back checked all the grounds and have all new cam and crank sensors. also have 5mv reading from cps. also tried to hook up code reader to it cause it intermitenly pops up a code then gos away. but can't get any code reader to link to ecu. please help. thank you

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  • chris michaud Mar 26, 2011

    I have already ohmed out the coil packs and swapped them to make sure they fire. they all ohmed out just fine and all fire when i changed them to to the first coils position. how could i check the ecu?

  • chris michaud Mar 27, 2011

    this is a waste spark sysytem and the first coil fires everytime. went through and checked all the grounds. there good. need a pin out on the ignition system back to ecu if possible. Thank you

  • chris michaud Mar 27, 2011

    this has an obd2 port on it and mitsubishi has had obd2 since 94 apparently i need speacial code reader because i already tried to scan it and it won't link up. I have swapped coils so all coils are firing but only when i plug them in on the first packs position. thats why im trying to get a pin out of the ecu to ignition don't have any more cash to throw parts need a positive answer.

  • chris michaud Mar 27, 2011

    I know for certain that from the ignition module to plugs every thing is good. just can't figure out why the ecu isn't telling the other two coils to fire if anyone can tell me how to check this that would be great

  • chris michaud Mar 27, 2011

    i rented there scanner and it wouldn't link to ecu

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3 Answers

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  • Mitsubishi Master
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I'm assuming that you have checked all the wires and connectors, even the grounding strap for the engine, and they are OK. In that case i'm sorry to tell you but since the the only thing that would prevent a connection between a reader and an ECU is a dead ECU it means that your ECU has been fried - replace it.
You can get a service manual from here
http://www.freepdfdownload.net/1996-mitsubishi-montero-electrical-service-manual.html

Posted on Mar 27, 2011

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  • Mitsubishi Master
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You will have to test the coil pack,The problem relates to either faulty coil pack or the ecu is not giving command to coil packs .To test the coil pack, remove the coil pack connector out.You will have to test each coil pack connector one by one by ohmmeter or voltmeter. Once out, look at the area where you removed the electrical plug. You should see a "+" on the back end of the electrical plug. There should also be the letter "B"....
the spot where you see the positive symbol, means that's prong number one on the electrical connector.
To test:Turn on your ohmmeter and place the positive wire on the 1st prong in the electrical plug of the coil pack. The negative wire should be touching the middle prong. Verification of the ohmmeter at this time should say "0" aka infinite... if it's anything else, the pack should be changed. Next test: reverse the wires... positive on the middle prong and negative on the 1st prong.... on a new coil pack, it should give a value of approximately 1.3-1.7 mega ohms. If any of the readings are off, replace the coil pack.If coil packs checked out ok then its indication that ecu is not commanding the coil pack to fire as required.It has to be checked and replaced.--------------- Check out.Keep updated.Thanks.Helpmech.

Posted on Mar 26, 2011

  • raj somaiya Mar 26, 2011

    The ecu has to be scanned.By the scan tool.The car year below 1995 or 1995 has to be scanned by obd1 tool.
    And after year 1995 are scanned by obd2 tool.You will have to get the ecu separately scanned at local car garage, dealing with obd1 scan tool.--------
    Check out, keep updated,Thanks.Helpmech.

  • raj somaiya Mar 27, 2011

    If it used obd port 2 then, at autozone service center, its absolutely free to get ECU/ECM scanned.They dont charge for scanning ECU/ECM.Getting it scanned autozone, will confirm the fault.---------- Check out.Keep updated.Thanks.Helpmech.

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  • Mitsubishi Master
  • 5,763 Answers

The first thing is to check the grounds, there are many ground wires bolted to the engine and on the intake manifold, make sure they are all hocked up ,the other thing is the tone wheel on the crankshaft, make sure it did not come loose or broke off the crank. this sounds like something went bad if it ran for over an hour and then wont start and has no spark from other coils only the first then it sounds like a wire for ground or the crank sensor tone wheel, and last check the timing belt, make sure everything lines up but the crank sensor tone wheel would be the thing to look at after checking all ground, these are single wire grounds, and important one at that, good day.

Posted on Mar 26, 2011

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