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1994 Chrysler New Yorker PROM CODE ERROR?

Tiny
KNOTT32
  • MEMBER
  • 1994 CHRYSLER NEW YORKER
  • 6 CYL
  • FWD
  • AUTOMATIC
  • 101,000 MILES
I have a 1994 Chrysler New York, I changed the engine and put 1996 3.5l in it now it has a check engine light with a prom error code. Motor runs pretty good but, the A/C and the cooling fans will not come on and it will over heat after a whille. Any ideas? It also has pcm 4605429 which is a updated unit?
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Tuesday, August 5th, 2008 AT 8:22 PM

1 Reply

Tiny
MMPRINCE4000
  • MECHANIC
  • 8,548 POSTS
The 1994 used OBDI protocall whereas the 1996 uses OBDII, the two are not compatable. You would have to fit the 1994 harness and ECM to the 1996, I am not sure that can be done.
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Wednesday, August 6th, 2008 AT 4:07 PM

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