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Re: '165 to '730
Thanks for answering a lot of the questions I had about this...guess
I should have asked 165 to 730 instead of MAF to MAP <g>.
LW
-----Original Message-----
From: John S. Gwynne <jsg@jsgpc.mrcday.com>
To: gmecm@diy-efi.org <gmecm@diy-efi.org>
Date: February 5, 2000 7:56 PM
Subject: Re: '165 to '730
>
>
>| 1) How does the buffered VSS signal from the '165 get converted to
>| the "Hi" and
>| "Lo" VSS inputs of the '730. (I'm assuming that the 2000ppm and
>| 4000ppm
>| output of the '730 are not needed for my older speedo and cruise
>| systems)
>
>leave BB9 & BB10 open. Connect your old A10 to BC6, and change prom
>0x0018 from 0xd4->0x94... see table below
>
>
>| 3) I couldn't find a EGR Diag input on the '730. Do those cars not
>| check the
>| EGR temp for proper opperation?
>|
>
>They check it through variation in MAP. That wire is not connected to the
730
>see below.
>
>
>| 4) I'm assuming that I can jumper the knock sensor directly into the
>| '730, by
>| shorting out the disconnected ESC connector. Is this correct
>| that the same
>| knock sensor used in the '165/ESC system can be feed directly
>| into the '730
>| input?
>|
>
>No, they are different types.... need a new one.
>
>
>
>| Anything else to consider?
>
>
>disconnect the cold start injector (remove fuse)
>
>These two PROM changes where needed in my case:
> 0x0018 0xd4->0x94; MAG SPD SENSOR change
> 0x0016 0x14->0x04; no VATS
>
>
>Below is the pin-for-pin swap that I used....
>
>HTH,
>john gwynne
>
>
> 730 165
>circuit pin circuit pin Comments
>===========================================================================
=
>
>450 BD7 450 D1 ;split d1 to both inj drivers
>450 BD6 450 D1 ;
>
>468 BC12 468 D16
>467 BC11 467 D15
>731 BD12 731 D11
>412 GE14 412 D7
>413 GE15 413 D6
>424 BC7 424 D5
>423 BC8 423 D4
>450 BD1 450 D3
>452 BB5 452 D2
>340 BC16 340 C16
>416 BA5 416 C14
>417 GF13 417 C13
>472 GF16 472 C12
>410 GE16 410 C10
>446 BD14 446 C8
>442 GE4 442 C6
>441 GE3 441 C5
>443 GE5 443 C4
>444 GE6 444 C3
>429 GF4 429 C2
>335 GE8 335 C1 (n.c.., no fan)
>434 BD16 434 B10
>59 BC9 59 B8
>496 GF9 485 REF B7
>229 GF10 963 B6
>430 BD8 430 B5
>453 BD9 453 B3
>120 GE13 120 B2
>340 BB1 340 B1
>450 BA12 450 A12
>NC BC6 437 A10
>451 GE12 451 A9
>461 BA8 461 A8
>456 GF1 422 A7
>439 BA6 439 A6
>419 GE7 419 A5
>435 GE9 435 A4
>428 GF7 428 A3
>436 GF2 436 A2
>465 BA11 465 A1
>
>wires to add:
>474 BA4 NC NC ;+5v ref map
>432 GF15 NC NC ;map signal
>470 BB6 NC NC ;+5v map return
>
>open connections:
>401 BB9 NC NC ;vss (low)
>400 BB10 NC NC ;vss (hi)
>1019 BB11 NC NC ;vss output (4k p/mi)
>381 BC1 NC NC ;vss output (2k p/mi)
>NC NC 452 A11 ;MAF signal gnd
>NC NC 998 B12 ;MAF signal
>NC NC 935 C15 ;egr thermo switch
>NC NC 450 D10 ;unused ground
>NC NC 900 D12 ;burn-off relay
>
>
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