No start and no communication with snap on modis scanner

Tiny
LOUIELEWIS
  • MEMBER
  • 1995 MITSUBISHI EXPO
  • 198,000 MILES
I have a no start on my 1995 mitsubishi expo 2.4l.I have fuel and spark.I have an ignition switch that I have to turn on and off a few times before it works but it still turns over.I also have a snap on scanner ( Modis ) with the correct mitsu-1 adapter and the key7 attatchment but I get a no communication everytime I hook it up. It says obd1 under the hood on the emmisions tag but it has an obd II connector under the dash so I am not sure how to check for codes.I am lost. Please help
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Wednesday, December 28th, 2011 AT 8:24 PM

8 Replies

Tiny
RIVERMIKERAT
  • MEMBER
It sounds as though you have an issue with the ignition switch that needs to be addressed first.
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Wednesday, December 28th, 2011 AT 8:31 PM
Tiny
RASMATAZ
  • MEMBER
Check and test the ignition switch, fuel pressure if its within specs and verify the valve and ignition timing-
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Wednesday, December 28th, 2011 AT 8:31 PM
Tiny
LOUIELEWIS
  • MEMBER
Would the ignition switch being semi faulty cause the no communication with the scanner? And also a no start? I mean when it turns over it turns over good
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Wednesday, December 28th, 2011 AT 8:48 PM
Tiny
RIVERMIKERAT
  • MEMBER
Yes, it could cause the no start condition. The switch may not be sending the signal to power up the ignition primary circuit.

The no communication issue is probably a loose connector pin or broken wire.
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Wednesday, December 28th, 2011 AT 9:02 PM
Tiny
LOUIELEWIS
  • MEMBER
Even if when the ignition switch is rolling over and over it is getting park at the plugs
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Wednesday, December 28th, 2011 AT 11:09 PM
Tiny
RIVERMIKERAT
  • MEMBER
You have engine turning over and spark, but it's not starting?
Check all fuses and relays.
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Wednesday, December 28th, 2011 AT 11:49 PM
Tiny
LOUIELEWIS
  • MEMBER
I checked all fuses and relays
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Thursday, December 29th, 2011 AT 9:32 PM
Tiny
RIVERMIKERAT
  • MEMBER
See images. Test continuity on the lines to and from the data connector.
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Thursday, December 29th, 2011 AT 10:12 PM

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