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New EZF LH2² pinouts

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Old 07-05-2014, 01:19 AM
  #16  
danglerb
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Ken are these the most current versions?

Suggestion, a date or version number.

Thanks, very handy references.


Originally Posted by PorKen
There's a couple versions of these out there, but to my eyes, they were difficult to read, or lacked info, so I made these.



Single page, landscape:

(EZF_LH22_32V.pdf)

(EZF_LH22_16V.pdf)


Green = sensor
Brown = ground
Black/Red = +12v
Purple = RPM signal


Notes:

-LH pin 15-
16V, 32V, inhibit decel inj. cutoff, is only implemented on green motherboards.
'86.5 LHs with yellow motherboards do not have this feature (missing components).
SAAB/Volvo with LH2.2 use this input to code for automatics.

-LH pin 19-
32V, LH octane loop, changes the O2 sensor loop rich/lean pattern slightly.
16V, Check Engine Light, indicates if the MAF signal is out of spec., LH in 'limp home' mode.









LH 2.2 LH22 LH2.2 ECU connector connectors terminal terminals pins pin plug S3 S2 85 86 86.5 ignition fuel injection
Old 07-05-2014, 01:45 PM
  #17  
PorKen
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Originally Posted by danglerb
Ken are these the most current versions?

Suggestion, a date or version number.
Everything that I know about to date.

Good idea. If I make changes, I will add a date. (I will apply this to the S4-up connectors if/when I get around to those.)
Old 07-05-2014, 03:12 PM
  #18  
soontobered84
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Ken,
DanglerB seemed to think that one of the pins powers the L/100Km gauge located on the Tachometer of an '84 Euro. Do you have any idea which one(s) to test? Would it pin 24 on the LH2 (16v)?
Old 07-05-2014, 05:25 PM
  #19  
danglerb
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Diagrams show pin 13 as the source for part of the info, apparently input that goes to the speedo is also used within the cluster.
Old 07-06-2014, 05:05 PM
  #20  
soontobered84
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Thanks Danglerb. I see that now on the illustrations.



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