Question about 1997 Mitsubishi Eclipse

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My 1997 Mitsubishi Eclipse wont pass emissions because trouble code P1390. I dont know what this means? Ive researched it everyway I know? My check engine light wont come on at all? Help anyone? Thanks!

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This is the direct definition of this code
Mitsubishi DTC P1390 - Timing Belt Skipped 1 Tooth or More.
Probable Causes,
-Timing belt improperly installed
-Camshaft position sensor improperly installed
-Camshaft position sensor connector improperly connected
-Crankshaft position sensor connector improperly connected
-Camshaft's relative position not relearned after one of the following have been serviced: Camshaft, Camshaft sprocket, timing belt tension-er, cylinder head, head gasket, crankshaft sprocket, crankshaft cylinder block or the PCM.

Sounds like something to do with the timing belt it self. You can go to any Autozone or Checker and ask for a code reader (they will let you use it for free) and it will show this code again. You can also reset the cars computer with the code reader to see if it comes back with the same code.

Posted on Nov 03, 2010

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Pass smog test


change your oil and oil filter. Add a bottle of octane boost to the fuel tank then top off with fuel. Drive vehicle for about twenty minutes then have emissions tested. Unless you have a bad catalytic converter, you should pass emissions.

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Code p1390 for mitsubishi


According to MitsubishiForum.com the code is about the engine timing being off.
Possible causes are the timing belt, cam, or crank sensor issues.
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Code 1494


Did you mean p1494? If so then its your evaporative emission ventilation switch or a mechanical fault, probable causes:

  1. Evaporative Emission Ventilation Solenoid failed
  2. An open or short circuit.
  3. Vacuum hose clogged.
  4. PCM Failed
Check the following:

  1. Check the following connectors: A-109, B-76, B-63, A-107. Repair if needed. If its ok then check:
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1 Answer

I have a 1999 gs mitsubishi eclipse my check engine light is on the code for the light is p1390 how do i get it fix need help


It appears that there might be a TSB (technical service bulletin) issued on this vehicle by Mitsubishi. Check with your local dealer to verify for certain. One link with brief summary of this on a 1998 model (yours might fall into this class too?) can be seen here and is as follows:

1998 Mitsubishi ECLIPSE 98 - Transmission TCM PCM > POWER TRAIN : AUTOMATIC TRANSMISSION : CONTROL MODULE (TCM, PCM) [Part 103100 ]
TSB No: 01 NHTSA ID: 622435 , May 01, 2001 : Replacement:
Summary: subject regarding diagnostic trouble code p1390 pcm relearn.

A fuller discussion on a 1996 with this code can be seen here. Scroll down to the answer.

Perhaps these will provide a bit of information prior to contacting your dealer. I've never worked in a dealership that charged for looking up & providing info on TSB's. Good luck.

If this helps to solve your problem then please take a moment to rate this post. - Thanks.

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1997 2.0 y code engine mitsubishi eclipse


P1390 - Timing belt skipped 1(or more) tooth

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Jan 21, 2009 | 1997 Mitsubishi Eclipse

1 Answer

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The error is actually P1400 Manufacture Controlled Auxillary Emissions Controls. I'm having that issue with my 2001 Mitsubishi Eclipse right now. Not to mention the bad paint job.

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1997 tsi awd wont pass emissions


Very well could be, if it will not pass due to a trouble code. If it is the actual emmissions that are tested and then failed due to the CO2 emmisions then it could be a myriad of problems.

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1 Answer

Self diagnostic test codes


anytime you do the self-diagnostic you will almost always get those 2 codes.

12 - direct power input to the PCM has been disconnected within the last 50 key-on cycles

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Dec 27, 2008 | 1997 Mitsubishi Eclipse

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