gambler87 Posted February 17, 2014 Report Share Posted February 17, 2014 I have a 4t65hd and a 97 Monte Carlo wiring harness and ecu. I have heard that I can swap the wiring harness into my car but there is some repinning that needs to be done. I'm wondering what I have to do exactly to make the wiring and ecu work in my car. Thanks Sent from my MB886 using Tapatalk Quote Link to comment Share on other sites More sharing options...
l67ss Posted February 17, 2014 Report Share Posted February 17, 2014 Youll need to change a couple wires at the c100(where it hooks to to the firewall). On one of my threads theres a link to 97 monte pinouts, mebbe saar or someone can line you up with pinouts for a 96 gp I have a 4t65hd and a 97 Monte Carlo wiring harness and ecu. I have heard that I can swap the wiring harness into my car but there is some repinning that needs to be done. I'm wondering what I have to do exactly to make the wiring and ecu work in my car. Thanks Sent from my MB886 using Tapatalk Quote Link to comment Share on other sites More sharing options...
gambler87 Posted February 17, 2014 Author Report Share Posted February 17, 2014 So that is the only connector that need to be changed? Sent from my MB886 using Tapatalk Quote Link to comment Share on other sites More sharing options...
l67ss Posted February 17, 2014 Report Share Posted February 17, 2014 Yup you just have to switch a couple wires on it. Its pretty easy to do So that is the only connector that need to be changed? Sent from my MB886 using Tapatalk Quote Link to comment Share on other sites More sharing options...
gambler87 Posted February 17, 2014 Author Report Share Posted February 17, 2014 Would u happen to know where I could get info on evap and a.i.r. injection deletes Sent from my MB886 using Tapatalk Quote Link to comment Share on other sites More sharing options...
gambler87 Posted February 17, 2014 Author Report Share Posted February 17, 2014 I can look up the c100 pin outs on alldata tomorrow Sent from my MB886 using Tapatalk Quote Link to comment Share on other sites More sharing options...
l67ss Posted February 17, 2014 Report Share Posted February 17, 2014 I am in need of that info myself Would u happen to know where I could get info on evap and a.i.r. injection deletes Sent from my MB886 using Tapatalk Quote Link to comment Share on other sites More sharing options...
gambler87 Posted March 3, 2014 Author Report Share Posted March 3, 2014 So I have all the c100 pin outs for both the 97 Monte and the 96 Gtp. Can someone tell me that I need to swap. Seems like nothing matches up Page 1 97 monte Page 2 97 monte Page 1 96 gtp Page 2 96 gtp Sent from my MB886 using Tapatalk Quote Link to comment Share on other sites More sharing options...
l67ss Posted March 3, 2014 Report Share Posted March 3, 2014 You just go pin by pin and clip and splice as needed Quote Link to comment Share on other sites More sharing options...
gambler87 Posted March 3, 2014 Author Report Share Posted March 3, 2014 I have ran through the list on both pin outs, and have found that the pins that don't match A1 A3 B1 B2 B3 C1 C2 J1 K3 L1 Sent from my MB886 using Tapatalk Quote Link to comment Share on other sites More sharing options...
gambler87 Posted March 5, 2014 Author Report Share Posted March 5, 2014 Thank u for the info L67ss, but does anyone else have more details about how to do this? The pins that don't match also don't go to the same thing, so switching pins doesn't work. Do I need to run both the car sod harness and the vehicles side harness to their designated places or is there something I am missing about doing this? Sent from my MB886 using Tapatalk Quote Link to comment Share on other sites More sharing options...
z34Phoenix Posted March 14, 2014 Report Share Posted March 14, 2014 as for the air pump delete, the 97 did not come with the air pump so nothing to delete there. evap just disable it in the pcm file. a friend of mine davez34v6 did the swap many years ago 96z34 had the 97z harness and 4t65hd. then later swapped to a 5spd. he should have an account on this board you can try to pm him. Quote Link to comment Share on other sites More sharing options...
gambler87 Posted March 20, 2014 Author Report Share Posted March 20, 2014 So I got the 97 motor and wiring harness into my 96 today and I found out that the 97 wiring harness doesn't have the drivers side fuse panel in the engine bay and I'm missing the two connectors that the 97s have in place of the fuse panel. If anyone knows the name/number of these connectors that would be great info so I can get pinouts for them Sent from my MB886 using Tapatalk Quote Link to comment Share on other sites More sharing options...
l67ss Posted March 20, 2014 Report Share Posted March 20, 2014 The 97 harness should plug into the 96 fuse box harness Quote Link to comment Share on other sites More sharing options...
Imp558 Posted March 20, 2014 Report Share Posted March 20, 2014 I dunno Dude, I'm pretty sure the 96-97 was a model change, probably not going to be really compatible. Quote Link to comment Share on other sites More sharing options...
gambler87 Posted March 22, 2014 Author Report Share Posted March 22, 2014 I have a few more questions about this wiring swap. Where does this connector go. I can't find out what number the connector is, and I see nothing to connect it to. I also can not find a picture of a wiring harness installed in a 97 z34. This four wire plug in is next to the passenger side strut tower. It is from the stock 96 Gtp not the Monte Carlo wiring harness. Sent from my MB886 using Tapatalk Quote Link to comment Share on other sites More sharing options...
Imp558 Posted March 22, 2014 Report Share Posted March 22, 2014 The first picture goes on the transmission park neutral switch. The second one appears to be the front oxygen sensor. Wire colors on that second one should be tan, purple, Black one,And either pink or brown Quote Link to comment Share on other sites More sharing options...
gambler87 Posted March 22, 2014 Author Report Share Posted March 22, 2014 The the front oxygen sensor is a square plug not a flat. But thank u for the guess. The transmission is already plugged in. The wires are also not long enough to reach the transmission switch. The wiring is only about three inches from the main harness. And the connector sirs up by the drivers side strut tower and the cruise control plug in Sent from my MB886 using Tapatalk Quote Link to comment Share on other sites More sharing options...
l67ss Posted March 23, 2014 Report Share Posted March 23, 2014 First one looks like cruise control, second looks like alternator Quote Link to comment Share on other sites More sharing options...
gambler87 Posted March 23, 2014 Author Report Share Posted March 23, 2014 Found out what both of them were. The first one is actually listed as the c156 connector, I googled searched it and it popped up a w-body forum thread that gpchris had the same issue. The second one from what I can see if for the downstream of sensor which the 97 harness also has the same male connector but places it down by the vss. The 96 harness runs it up next to the c100 plug and also has a male end on the car side. So tomorrow I get to unpin both sides of that connector and put the female side from the 96 harness on the car side of the wiring and then run the wire down by the vss and plug into the 97 harness there. Thank u all for the input. Its nice to see that at least people try Sent from my MB886 using Tapatalk Quote Link to comment Share on other sites More sharing options...
Imp558 Posted March 23, 2014 Report Share Posted March 23, 2014 So what stuff is on the C156 plug? I've never seen that used for anything but the P/N. And the other plug would usually only have 2 wires if it was an alternator, so I knew ot was O2, same place as my 96 harness. The Cruise module plug is a 10 pin Delphi weatherpack type. Quote Link to comment Share on other sites More sharing options...
gambler87 Posted March 23, 2014 Author Report Share Posted March 23, 2014 This is the c156 plug in I totally forgot about the downstream o2 sensor. I pulled the sensor and deleted the ses light for it out of the ecu Sent from my MB886 using Tapatalk Quote Link to comment Share on other sites More sharing options...
Imp558 Posted March 23, 2014 Report Share Posted March 23, 2014 How strange, my '96 harness has the fan relays integrated into the UEC on the front Passengers side, and it's also peculier that fan 1 is a white wire when all the other GM cars run a Green wire, we don't typically see a white wire till much later on with the advent of the fan control module, but that is labeled as "fan feed" not "fan relay control" like the blue wire. the car that donated that harness must have had a subharness that had Rear O2 and fan relays over there. I've never seen that harness before. Quote Link to comment Share on other sites More sharing options...
gambler87 Posted March 23, 2014 Author Report Share Posted March 23, 2014 It is a stock 97 Monte Carlo z34 harness Sent from my MB886 using Tapatalk Quote Link to comment Share on other sites More sharing options...
Imp558 Posted March 23, 2014 Report Share Posted March 23, 2014 How did the fan run stock? A relay? Quote Link to comment Share on other sites More sharing options...
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