Dodge Neon 420a/ECC Decoder
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Author:  Fred [ Sun Jun 14, 2015 3:52 am ]
Post subject:  Dodge Neon 420a/ECC Decoder

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:


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

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



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


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


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