Replace Flash PCM With VX/VY S/C PCM

Wiring diagrams and questions
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The1
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Re: Replace Flash PCM With VX/VY S/C PCM

Post by The1 »

haha yeh, i did 6 i think so far, enough for me.
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psyolent
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Re: Replace Flash PCM With VX/VY S/C PCM

Post by psyolent »

well it gave the desoldering station a good workout :) works well.
i'm a little of the way through it. printed out an a3 page so i am not scrolling through the bloody computer every 1 second.
Cheers,
Greg aka Sir Burnie Tanington

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Retr0
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Re: Replace Flash PCM With VX/VY S/C PCM

Post by Retr0 »

psyolent wrote:god damn. you really have to want to do this.
note ; if you are going to use in a later model (like vx) get the ECU plugs from a vt berlina or calais ... as they have things like the PRND321 indicators :)
So I’ve just made my conversation loom wondering why I’m missing the PRND321 wires on my harness... guess this is why!

In addition to the grey wire being left I’m left with 2 other wires:
B10 (light green)
E9 (pink)

Will I have any issues with those 2 wires being left out?
OZ38
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Re: Replace Flash PCM With VX/VY S/C PCM

Post by OZ38 »

Not sure but thought B10 was for running MAP ?
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Re: Replace Flash PCM With VX/VY S/C PCM

Post by kojab »

OZ38 wrote:Not sure but thought B10 was for running MAP ?
Correct B10 is Map input but only for a Kalmaker bin. On the factory VT B10 is for EGR

E9 is one of the wires in the 4 pin PRND321 plug
L67PSI
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Re: Replace Flash PCM With VX/VY S/C PCM

Post by L67PSI »

A question regarding the spreadsheet for Flash to S/C PCM conversion. For example with Flash PCM pin A1 to S/C PCM does that mean the wire is doubled up for pin C13 and C14?
Thanks
Flash_to_396_PCM_Wiring_Conversion.jpg
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Holden202T
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Re: Replace Flash PCM With VX/VY S/C PCM

Post by Holden202T »

This might explain it a bit better for you.
wiring.jpg
wiring.jpg (38.82 KiB) Viewed 5293 times
L67PSI
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Re: Replace Flash PCM With VX/VY S/C PCM

Post by L67PSI »

Yes, that pic explains it well. Thank you
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The1
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Re: Replace Flash PCM With VX/VY S/C PCM

Post by The1 »

yep the 2 lines are multiple on other pcm and single on the other which are the same thing.
L67PSI
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Re: Replace Flash PCM With VX/VY S/C PCM

Post by L67PSI »

Would it be easier to re-pin for the '396 PCM or make up the patch harness?
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