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3800 wiring harness by fierogtx
Started on: 12-03-2013 09:40 PM
Replies: 7 (647 views)
Last post by: fierogtx on 12-04-2013 09:50 PM
fierogtx
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Report this Post12-03-2013 09:40 PM Click Here to See the Profile for fierogtxClick Here to Email fierogtxSend a Private Message to fierogtxEdit/Delete MessageReply w/QuoteDirect Link to This Post
hi just a question can i take an engine wiring harness from a 2003 gp gtp l67 and wiring like the 98-2002 method like darthfiero recommend ?????
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phonedawgz
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Report this Post12-04-2013 03:22 AM Click Here to See the Profile for phonedawgzClick Here to visit phonedawgz's HomePageClick Here to Email phonedawgzSend a Private Message to phonedawgzEdit/Delete MessageReply w/QuoteDirect Link to This Post
There is a lot more to building a harness than just repinning the PCM.

What transmission are you running? If the 4T65E-HD then what year?

MT, then not much problem.

AT 4T65E-HD you need to make sure your PCM/PCM programming/PCM wiring are compatible with your year 4T65E-HD
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Report this Post12-04-2013 08:57 AM Click Here to See the Profile for FIEROFLYERSend a Private Message to FIEROFLYEREdit/Delete MessageReply w/QuoteDirect Link to This Post
Yes you can, if you need any help just ask as it is not that hard to do just time consuming to do a nice clean job. Dan

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fierogtx
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Report this Post12-04-2013 11:00 AM Click Here to See the Profile for fierogtxClick Here to Email fierogtxSend a Private Message to fierogtxEdit/Delete MessageReply w/QuoteDirect Link to This Post
oops sorry manual trans getrag i want to use 1998-2000 pcm with a 2007 gt (l32) engine and i found a 2003 gtp engine harness does i can take to wire like the 1998-2002 like darth fiero recommend ??????
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phonedawgz
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Report this Post12-04-2013 01:50 PM Click Here to See the Profile for phonedawgzClick Here to visit phonedawgz's HomePageClick Here to Email phonedawgzSend a Private Message to phonedawgzEdit/Delete MessageReply w/QuoteDirect Link to This Post
The harness has different injector connectors and they won't fit.

2007 L27 injector connector


2003 L67 injector connector


The 2007 also uses different sized connectors on the PCM vs the 2003 so they won't work either.

[This message has been edited by phonedawgz (edited 12-04-2013).]

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Report this Post12-04-2013 03:54 PM Click Here to See the Profile for FIEROFLYERSend a Private Message to FIEROFLYEREdit/Delete MessageReply w/QuoteDirect Link to This Post
The 03 GTP harness will be for the L67 and will have the older style fuel injector connectors as mentioned but will also have the older style PCM connectors you will need to wire every thing up as a series II to work with the manual tranny. So you can either use series II injectors or change the injector connectors when making your harness. If you need any diagrams let me know and I will get them for you. Dan
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qwikgta
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Report this Post12-04-2013 05:26 PM Click Here to See the Profile for qwikgtaClick Here to Email qwikgtaSend a Private Message to qwikgtaEdit/Delete MessageReply w/QuoteDirect Link to This Post
some pics in my build thread http://www.fiero.nl/forum/Forum1/HTML/089035.html

I was building an auto trans, so yours will be much eaiser. I had the same issues with injectors. Just pulled the ones off the SIII harness, and wired them up to the SII harness, using the pin-outs, and phonedawgz help.

2004 SIII motor wired up as a 2003 SII motor.

Rob
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fierogtx
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Report this Post12-04-2013 09:50 PM Click Here to See the Profile for fierogtxClick Here to Email fierogtxSend a Private Message to fierogtxEdit/Delete MessageReply w/QuoteDirect Link to This Post
 
quote
Originally posted by qwikgta:

some pics in my build thread http://www.fiero.nl/forum/Forum1/HTML/089035.html

I was building an auto trans, so yours will be much eaiser. I had the same issues with injectors. Just pulled the ones off the SIII harness, and wired them up to the SII harness, using the pin-outs, and phonedawgz help.

2004 SIII motor wired up as a 2003 SII motor.

Rob

thanks it will be very instructive

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