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Dodge Neon 420a/ECC Decoder

Posted: Sun Jun 14, 2015 3:52 am
by Fred
This thread is kinda split off the old one that had 420a in the title but was really focussed on the later NGC stuff which is totally different.

420a/ECC engines were found in:
--- SOHC 2.0 ---
Dodge Neon/Plymouth Neon (1995–2005)
Dodge Stratus/Plymouth Breeze (1995–2000)

--- DOHC 2.0 ---
Chrysler PT Cruiser (non-US) (ECC)
Dodge Avenger/Chrysler Sebring (1995–1999) (420A)
Dodge Neon/Plymouth Neon (1995–1999) (ECC)
Mitsubishi Eclipse/Eagle Talon (second generation, 1995–1999) (420A)

--- 2.4 DOHC --- (The 2.4 is 180deg out of phase with the 2.0)
1995–1998, 2000 Chrysler Cirrus
1995–2006 Chrysler Sebring
1995–2006 Dodge Stratus
1996-2007 Dodge Caravan
1996-2000 Plymouth Voyager
1996–2000 Plymouth Breeze

The pattern looks approximately like this poorly drawn and inaccurate diagram, that seems to be sourced from some magazine, not Chrysler docs, roughly:

Image


And here's the poorly written article from which that diagram was extracted.


Here's a few pics of a crank out of one:

Image

Image


And here's a "composite log" from some MS user that appears to show the ? as being narrower than the ?:

Image


Any more actually reliable data from the OEM or careful measurement most welcome.

Fred.