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Post by cul8r on Mar 6, 2010 21:03:10 GMT 12
Anyone got a workshop manual for a piazza they'd either sell or could they scan the wiring diagrams for me?
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Post by gemininja on Mar 7, 2010 8:58:27 GMT 12
wich one? itech i think i have. the older one... goooood luck
will get it sorted later on for ya
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Post by cul8r on Mar 7, 2010 20:39:22 GMT 12
ITEC yea
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Post by gemininja on Mar 8, 2010 18:04:00 GMT 12
 this should be what your after, found it in a dusty old book at work... i have turbo one wich is the same + turbo controll module. and another one wich may be different.. newer? this is listed as 1988. the other one is just "impulse" hope it helps, for all i know it could be the complete wrong ecu. it was no use to me at all haha (i had ECGI) |
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Post by cul8r on Mar 8, 2010 20:23:23 GMT 12
you couldnt scan the ECGI - thats on the other motor...?
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Post by gemininja on Mar 10, 2010 9:24:25 GMT 12
couldnt find ECGI. that was my problem =D
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Post by burntrubber on Mar 10, 2010 16:23:15 GMT 12
What info you after I know most of whats needed to get it to run in a Gem or vette off top of my head.
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Post by cul8r on Mar 10, 2010 19:40:51 GMT 12
Worked out the wire that runs from the ecu - separate from the loom, is for the Negative on the coil. (injectors are fired off coil pulse)
What I need to know is the 4 or 5 white wires that run from from a plug, one quite large in dia, say 4mm where as the rest are 2.5 or 3mm.. What are they all for...
I've everything plugged into its corresponding spots, TPS, water, injectors, afm etc etc.. and the only remaining wires are these 4 or 5 white ones. Im guessing but dont want to wire up just yet that they are the positive feeds for ignition etc.
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Post by burntrubber on Mar 10, 2010 20:50:38 GMT 12
Ah can't remember exactly but I think thats all to do with the fastidle valve maybe fuel pump and few other bits. To have the fastidle working for cold starts you need to wire a relay to be triggered off one of those wires which then goes back through another one to the valve the ECU can't run the valve its self to much for it. I have the pin outs written somewhere if you want them you'll be able to sus what each wire on that plug is. Or you could ask G-ninge he's got the opisite side of that plug with all the relays I stripped out of the Piazza I followed every wire in that car made sure I had everything was good it fired up right away.
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Post by cul8r on Mar 10, 2010 21:16:43 GMT 12
Yea that would be great if you can, when you get a minute!
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Post by burntrubber on Mar 11, 2010 19:23:57 GMT 12
Poo's cant find it will do though gota get the car outa the shed this weekend and have a tidy up cleaned shed a month or so ago and done like half an hours work in there and its an epic mess again. I'll find it its in there I just been re doing my plug end of loom and had the papers out of their draw and hav'nt put them back  G-ninge should tell us what they are  |
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Post by burntrubber on Mar 12, 2010 4:40:12 GMT 12
Found it! was late when I found it. There's 35 but I've only got 33 writen down think the others are AFM because its not on the list.
(1) blank
(2) injector 3
(3) blank
(4) blank
(5) injector 1
(6) injector 4
(7) injector 2
(8) blank
(9) blank
(10) blank
(11) blank
(12) idle valve grnd
(13) blank
(14) water temp signal
(15) water temp grnd
(16) blank
(17) blank
(18) coil -ve
(19) ecu earth
(20) ecu earth
(21) blank
(22) Blank
(23) blank
(24) TPS ? not sure what though
(25) blank
(26) relay/idel valve I think
(27) ecu power feed relay
(28) blank
(29) TPS?
(30) TPS?
(31) blank
(32) blank
(33) blank
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G-ninge should tell us what they are 