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EF/EL V8 ECU pin 31 

 

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 Post subject: EF/EL V8 ECU pin 31
Posted: Mon Apr 16, 2007 7:46 pm 
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Can someone with a EF or EL V8 wiring diagram tell me where pin 31 of the ECU connector goes?? The wire is yellow in colour

 

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Posted: Mon Apr 16, 2007 8:11 pm 
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The V8 drawing doesn't show it, but on the 6 cyl pin 31 is a yellow wire that goes to the power steering pressure switch.

 

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Posted: Mon Apr 16, 2007 8:36 pm 
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thats what i thought. But beleive it or not, the yellow wire is present in the V8 loom :?

 

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Posted: Mon Apr 16, 2007 9:26 pm 
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I think there is a yellow wire with a very thin and faint red stripe on it ( or pink stripe ) which is the fuel pump wire. Can't remember what pin it is.

 

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Posted: Tue Apr 17, 2007 1:35 pm 
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are you sure that its pin 31???? :?:

 

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Posted: Wed Apr 18, 2007 12:25 am 
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POWER STEERING PRESSURE SWITCH

Sensor Description: Vehicles fitted with an I6 Engine have a Power Steering Pressure Switch (PSP) which is a pressure sensitive switch that detects when pressure within the power steering system reaches a specified level. To prevent engine stall and maintain idle quality during parking manoeuvres the PCM boosts the engine idle speed by approximately 100 RPM. The PSP is a normally closed pressure switch. Under no load conditions the switch connects PCM Pin No. 31 to ground through PCM Pin No. 91, Signal Return (SIGRTN). When the power steering load is high, the PSP opens causing 8-10 volts to be detected at PCM Pin No. 31.

Connections

PCM Pin 31.................. .................... ...................P SP Signal

PCM Pin 91.................. ................. Signal Return (SIGRTN)

 

 

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pin31.jpg
pin31.jpg [ 33.83 KiB | Viewed 52 times ]
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Posted: Wed Apr 18, 2007 12:43 am 
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These are the V8 and I6 pin outs, according to them 31 is empty on V8.

 

 

Attachments:
pinoutsI6.jpg
pinoutsI6.jpg [ 183.21 KiB | Viewed 81 times ]
pinoutsV8.jpg
pinoutsV8.jpg [ 170.09 KiB | Viewed 103 times ]
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