LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Pulled DTC codes low TPS sensor

Thread Tools
 
Search this Thread
 
Old Apr 29, 2009 | 06:54 PM
  #1  
Raven97's Avatar
Thread Starter
Launching!
 
Joined: Feb 2005
Posts: 286
Likes: 0
From: SW FLORIDA
Default Pulled DTC codes low TPS sensor

Hey guys. I just scanned the DTC codes for my car and I got a code for low TPS sensor voltage, I checked the wires and it was plugged in and the connector looked good, so I unplugged it to see if it mad ANY difference and nothing, how bad is it for the motor to run without it, I am having some knock and the car is pulling timing. (still needs to be tuned after rebuild) I am going to be learning how to tune it myself but I need to get this fixed before I can start.

Could it be pulling timing because of something related to the TPS sensor?

Also I have a code for the A/C evaporator sensor circuit. Where is this sensor located so I can check/replace it? also where can I find the correct Shrader valve for the low pressure A/C port?
Reply
Old Apr 29, 2009 | 07:05 PM
  #2  
shbox's Avatar
TECH Veteran
15 Year Member
Liked
 
Joined: Dec 2008
Posts: 4,144
Likes: 61
From: Little Rock, AR
Default

I don't see how the engine will run right at all without the TPS working.
Reply
Old Apr 29, 2009 | 07:31 PM
  #3  
Raven97's Avatar
Thread Starter
Launching!
 
Joined: Feb 2005
Posts: 286
Likes: 0
From: SW FLORIDA
Default

Originally Posted by shbox
I don't see how the engine will run right at all without the TPS working.
Thats what I was thinking but it seems to run really strong from the seat-o-the-pants meter, I thinkI am just going to go out and get a new sensor and see how it does.

any Idea about the Evap sensor circuit?
Reply
Old Apr 30, 2009 | 09:20 AM
  #4  
Ponch95's Avatar
TECH Apprentice
iTrader: (5)
 
Joined: Jan 2008
Posts: 326
Likes: 0
From: Heidelberg, Germany
Default

Your Evap sensor and your MAP sensor are ran off the same circuit as your TBPS Sensor. Once you change your TBPS it should go away along with your Evap code.
Reply
Old Apr 30, 2009 | 10:18 AM
  #5  
Raven97's Avatar
Thread Starter
Launching!
 
Joined: Feb 2005
Posts: 286
Likes: 0
From: SW FLORIDA
Default

Not the Fuel Evap system the A/C evaporator sensor circuit OBD1 code 71, I sill cant fugure this one out AFAIN the only sensors are the one pressure sensor by the low side fill port and the plug on the compressor.??? I'm stumped

Last edited by Raven97; Apr 30, 2009 at 10:28 AM.
Reply




All times are GMT -5. The time now is 03:53 PM.

story-0
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-1
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-2
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-3
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-4
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-5
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-6
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-7
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE
story-8
Five Reasons the Camaro Was the Most Pivotal Player in the Pony Car Wars 2.0

The world was a better place when it was still around.

By Brett Foote | 2026-01-23 09:20:37


VIEW MORE
story-9
10 Reasons the LS7 Is GM's Most Extreme Naturally Aspirated V8 Engine Ever

Slideshow: The 7.0-liter LS7 was designed for absolute cutting-edge performance.

By Verdad Gallardo | 2026-01-07 18:36:00


VIEW MORE