TPS Connector Replacement - ZR-1 Net Registry Forums

Blue Flame Restorations · 05-07-2012

Learned something this weekend about the TPS (throttle positin sensor).

My car had one with a broken snap tab for holding the connector to the TPS. Evidently, the voltage would not stay consistent due to the broken snap tab. The car ran "ok" but had developed a small "burbble", I call it. You could feel it and hear it in the exhaust. It started last Friday. It had ran 100% after the engine work and it really dis-appointed me to have what felt like a "miss".

After discussing it with Pete, we determined that the connector with the missing snap tab may be the issue. I ordered a new pigtail from O'Reiley's and spliced it into the harness today.

Walah! Runs like a champ. The cams sound amazing and the exhaust tone is smooth, although pretty loud. I have pretty good neighbors and hope to keep it that way. The B&B with X pipe eliminates me from sneaking into or out of anywhere. LOL

With the age of our cars, and plenum pulls, disconnecting and re-connecting, it's really no surprise that this happened on my car. Plastic gets brittle, sepecially in a heated environment.

4-cam · 05-07-2012

Great information, I need to replace mine as well.

scottfab · 05-07-2012

Do you recall the O'Riley part # ?

VetteMed · 05-07-2012

Better option than cut and splice, is to get a pin release tool, to allow you to reuse the stock wires and pins in a new connector housing. These tools are sold as a 3-pack, I think I paid about 9 or 10 bucks from jeg's a while back.

Tool and bare wire with pin:

pin inserted into tool, almost to the point where locking tabs are depressed.

Obviously you can't see this when the connector is assembled -- but the process is the same.

VetteMed · 05-07-2012

http://www.jegs.com/i/JEGS+Performan...10769/10002/-1

VetteMed · 05-07-2012

http://www.oreillyauto.com/site/c/de...tion+connector

oricale · 05-07-2012

YEP me too..!

Blue Flame Restorations · 05-07-2012

Quote:

Originally Posted by scottfab

Do you recall the O'Riley part # ?

BWD
PT300

If I had known about the tool, I would have refrained from splicing the wires and heat shrinkng them.

Pete · 05-07-2012

The OE pins go weak/break.

The 2 i had were broken/weak pins.

It's not the plastic plug that makes contact it's the pins and if they're weak or broken you can change the plug and still have the issue.

Pete

VetteMed · 05-07-2012

Good point. I had many connectors with brittle, cracked plastic, but no problems with any broken pins.

05-07-2012	#1
Blue Flame Restorations Join Date: Feb 2010 Location: Pendleton, IN Posts: 3,904	TPS Connector Replacement Learned something this weekend about the TPS (throttle positin sensor). My car had one with a broken snap tab for holding the connector to the TPS. Evidently, the voltage would not stay consistent due to the broken snap tab. The car ran "ok" but had developed a small "burbble", I call it. You could feel it and hear it in the exhaust. It started last Friday. It had ran 100% after the engine work and it really dis-appointed me to have what felt like a "miss". After discussing it with Pete, we determined that the connector with the missing snap tab may be the issue. I ordered a new pigtail from O'Reiley's and spliced it into the harness today. Walah! Runs like a champ. The cams sound amazing and the exhaust tone is smooth, although pretty loud. I have pretty good neighbors and hope to keep it that way. The B&B with X pipe eliminates me from sneaking into or out of anywhere. LOL With the age of our cars, and plenum pulls, disconnecting and re-connecting, it's really no surprise that this happened on my car. Plastic gets brittle, sepecially in a heated environment. __________________ 1988 KOH Prototype EX5023 sold 1990 ZR-1 #444 Convertible 1990 ZR-1 Black #966 1991 ZR-1 Quazar Blue #296 1957 Duntov SS Project

05-07-2012	#2
4-cam Join Date: Feb 2010 Location: Arvada Colorado Posts: 194	Re: TPS Connector Replacement Great information, I need to replace mine as well. __________________ [I]4-cam[/I] [I]1991 ZR-1 Blk/Gry #31[/I] [I]SW Headers/Xpipe- Dynomax Muffs[/I] [I]Ported top end[/I] [I]Secondaries Removed[/I] Tune by Dominic

05-07-2012	#3
scottfab Join Date: Jan 2009 Location: Portland Oregon metro area (Washington side) Posts: 3,207	Re: TPS Connector Replacement Do you recall the O'Riley part # ? __________________ Scott Vett owner since 1979._It's about the car and the people

05-07-2012	#4
VetteMed Join Date: Mar 2009 Location: Orlando, FL Posts: 1,828	Re: TPS Connector Replacement Better option than cut and splice, is to get a pin release tool, to allow you to reuse the stock wires and pins in a new connector housing. These tools are sold as a 3-pack, I think I paid about 9 or 10 bucks from jeg's a while back. Tool and bare wire with pin: pin inserted into tool, almost to the point where locking tabs are depressed. Obviously you can't see this when the connector is assembled -- but the process is the same. __________________ 2004 Z06/Z16 LeMans Commemorative Edition 1991 ZR-1 #302 White/Gray (sold) 1991 ZR-1 #1147 Red/Saddle (sold) Last edited by VetteMed; 05-07-2012 at 10:21 AM.

05-07-2012	#5
VetteMed Join Date: Mar 2009 Location: Orlando, FL Posts: 1,828	Re: TPS Connector Replacement http://www.jegs.com/i/JEGS+Performan...10769/10002/-1 __________________ 2004 Z06/Z16 LeMans Commemorative Edition 1991 ZR-1 #302 White/Gray (sold) 1991 ZR-1 #1147 Red/Saddle (sold)

05-07-2012	#7
oricale Join Date: Oct 2011 Location: STAFFORD VA, Posts: 576	Re: TPS Connector Replacement YEP me too..! __________________ [B][I][COLOR=red]1990 ZR1[/COLOR][COLOR=black] [U]#00077 [COLOR=red]RED[/COLOR]/[COLOR=red]RED[/COLOR] (10Y022 PEP CAR) [/U][/COLOR][/I][/B][B][I][COLOR=red]1991 ZR1[/COLOR][COLOR=black] [U]#00517 ("Irene")[COLOR=red]WHITE[/COLOR]/[COLOR=red]RED-SOLD:cry:[/COLOR] [B][/B] [/U][/COLOR][/I][/B][B][I][COLOR=red]1992 ZR1[/COLOR][COLOR=black] [U]#00445("The Revenant")[COLOR=red][COLOR="Black"]BLACK [/COLOR][/COLOR]/[COLOR=red]RED(2016 T.O.D!) [/COLOR] [/U][/COLOR][/I][/B] [B][I][COLOR=red]2009 [COLOR=red]Z06!![COLOR=black]BLK/BLK rare Linen interior[/COLOR] 707HP!![/COLOR] [/COLOR][/I][/B] [B][I][COLOR=red]2006[/COLOR] BLK/BLK Z51 (Just SICK FAST!)SOLD)[/I][/B] [B][I]1996 BLK/BLK LT4 Grnsprt(sold...Twice!)[/I][/B] [B][I]1991 RED/REDL98(Fell off the shipping truck:([/I][/B] [B][I]1980 BLK/RED L82(Sold)[/I][/B] [B][I][B][I]1990[/I][/B] RED/BLK(sold.....In Japan)[/I][/B] [I][COLOR=black][B][I]2006[/I][/B][/COLOR][/I] [COLOR=red]Mustang GT[/COLOR] ([B][I]mach 1[/I][/B])[B](sold)[/B] [COLOR=black][B][I]1969[/I][/B][/COLOR] [COLOR=red]Mach[/COLOR] [B][I]1(sold in Japan)[/I][/B] [COLOR=black][B][I]1969[/I][/B][/COLOR] [COLOR=red]Mach[/COLOR] [B][I]1#2(sold)[/I][/B] [B][I]WAZOO Member...[/I][/B] [url]www.evolution-motorsport.com[/url] facebook/evolutionmotorsportengineering Your Local [url]www.Amsoil.com[/url] dealer/user.. Victory Loves Preparation

05-07-2012	#9
Pete Join Date: Dec 2003 Location: Chicagoland,IL Posts: 2,680	Re: TPS Connector Replacement The OE pins go weak/break. The 2 i had were broken/weak pins. It's not the plastic plug that makes contact it's the pins and if they're weak or broken you can change the plug and still have the issue. Pete __________________ '91 #1635 PoloGreen 350 LT5 11.09 @ 129.27 11.04 @ 128.86 474RWHP 400RWTQ http://www.youtube.com/watch?v=SFNFOhGGlR4 http://www.youtube.com/watch?v=ZlRIOMwaDYY https://sites.google.com/site/peteszr1garage

05-07-2012	#10
VetteMed Join Date: Mar 2009 Location: Orlando, FL Posts: 1,828	Re: TPS Connector Replacement Good point. I had many connectors with brittle, cracked plastic, but no problems with any broken pins. __________________ 2004 Z06/Z16 LeMans Commemorative Edition 1991 ZR-1 #302 White/Gray (sold) 1991 ZR-1 #1147 Red/Saddle (sold)