TPS fixed with PCM repair

drudis · 08-30-2007, 02:08 PM

I was attempting to hook up the TPS to my data acquisition hardware/software... Anyways, I noticed the voltage does not vary? Hmmmm? I re-re-re-checked the wiring, and wired it all properly, but the TPS voltage does not vary.

So after LOTS of investigating, come to find that the PCM actually had a broken connection, and I fixed it as pictured below. So now, not only do I have ability to capture throttle position, I actually FIXED something too!

Before:

After:

Going to add Throttle to this screen layout:
[media]http://media.mustangworks.com/data/514/2007_08_17_Waterford_122.wmv[/media]

byrnech · 03-31-2008, 10:16 AM

Do you have any idea how this happend to your PCM? I recently have had major issues and after opening mine up it appears to have the same issue. Mine started after installing a new oxygen sensor harness.

byrnech · 03-31-2008, 10:40 PM

Mine was due to using an AOD oxygen sensor harness on a 5 spd car. I got it fixed thanks to your post here, did the same trick. Probably saved me hundreds on trial and error and eventually a new computer. Thanks for posting this. -Chris

08-30-2007, 02:08 PM	#1
drudis Moderator Join Date: Dec 1999 Location: Livonia, MI, USA Posts: 1,194	TPS fixed with PCM repair I was attempting to hook up the TPS to my data acquisition hardware/software... Anyways, I noticed the voltage does not vary? Hmmmm? I re-re-re-checked the wiring, and wired it all properly, but the TPS voltage does not vary. So after LOTS of investigating, come to find that the PCM actually had a broken connection, and I fixed it as pictured below. So now, not only do I have ability to capture throttle position, I actually FIXED something too! Before: After: Going to add Throttle to this screen layout: [media]http://media.mustangworks.com/data/514/2007_08_17_Waterford_122.wmv[/media] __________________ Darius Rudis, Moderator Corner Carvers Delight 1989 Mustang LX - Open Track Car http://www.dariusrudis.com

03-31-2008, 10:16 AM	#2
byrnech Registered Member Join Date: Jun 2001 Location: Anderson, TX. Posts: 166	Re: TPS fixed with PCM repair Do you have any idea how this happend to your PCM? I recently have had major issues and after opening mine up it appears to have the same issue. Mine started after installing a new oxygen sensor harness. __________________ 331 10:1, AFR 185's, TFS-R intake

03-31-2008, 10:40 PM	#3
byrnech Registered Member Join Date: Jun 2001 Location: Anderson, TX. Posts: 166	Re: TPS fixed with PCM repair Mine was due to using an AOD oxygen sensor harness on a 5 spd car. I got it fixed thanks to your post here, did the same trick. Probably saved me hundreds on trial and error and eventually a new computer. Thanks for posting this. -Chris __________________ 331 10:1, AFR 185's, TFS-R intake

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