help! first time corvette owner asr & data connector issues
Thread Starter
Heel & Toe
Joined: Nov 2013
Posts: 15
Likes: 0
help! first time corvette owner asr & data connector issues
good morning everyone im Jon i just rcently purchaed a 1995 corvette has about 88k and ran and drove fine when i purchased it but now i have 2 issues i need direction on please. i get a service asr asr off and check engine light altogether and then eventually the check engine light goes out. when this happens i have very poor performance a little stumbling i call it around 2000 or so rpm and crazy hard snap your neck transmission shifts. i can shut car down and restart and it seems ok until light comes on again and it is very random it can happen 10 times in a row or take half a day. second part i have access to both gm scan tool tech 1 and tech 2 tech1 connector wont fit because the car has an obd 2 connector when i connect a tech 2 i have no communication to the scan tool can anyone help. i also ordered a new throttle position sensor off ebay and changed it it seemed to get better for about 2 weeks but went back to the same problem thank you
Le Mans Master
Joined: Sep 2013
Posts: 6,192
Likes: 750
From: near the thumb in the mitten
Check for blown fuse. Do you have FSM? FSM should have chart related to scanner no communicating with car. Can you get codes by jumping pins in ALDL?There is a connector end for TECH1 to fit 16 pin ALDL . OBD2 was out about a year before Tech2 was ready. Some PCM codes can disable ASR / TCS systems. If Tech2 is not powering up not all OBD1 cars with OBD2 ALDLs have 12v power source for scanner so you may need acc. 12v cable.
Last edited by Kevova; Nov 7, 2013 at 01:19 PM.
Safety Car
Joined: Jan 2004
Posts: 3,556
Likes: 13
Factory Service Manual ,
a set of GM manuals on your car essential to own if you plan on doing your own work
See
http://www.corvetteflorida.com/forum...read.php?t=981
for Module 4 ( the PCM ) codes
H shows a past ( History ) code
C is a code that is still present
In what module did you get the 22 code?
Module 4 ?
a set of GM manuals on your car essential to own if you plan on doing your own work
See
http://www.corvetteflorida.com/forum...read.php?t=981
for Module 4 ( the PCM ) codes
H shows a past ( History ) code
C is a code that is still present
In what module did you get the 22 code?
Module 4 ?
Last edited by vetteoz; Nov 8, 2013 at 02:10 AM.
Race Director
Joined: Apr 2002
Posts: 10,036
Likes: 346
From: Anaheim CA
Someone more knowledgeable than I will chime in here about the dreaded H41 error code…
[ EDIT ] Oopsie. I opened a new tab for this thread and finally got to it after vetteoz posted his answer. His answer wasn't there when I posted. [ /EDIT ]
Last edited by Cliff Harris; Nov 8, 2013 at 02:39 AM.
Le Mans Master
Joined: Sep 2013
Posts: 6,192
Likes: 750
From: near the thumb in the mitten
With the codes you have you need FSM. One is a data line failure which could be why scanner doesn't read data. There is also a TPS code which could cause your drivability and ARS troubles. Until you can get manuals: I suggest to check condition of TPS connector- make sure it firmly connected, not corroded, and wiring isn't chaffed. The other is make sure ground wires are clean and tight. You may need to get under car to get to some.
Instructor
Joined: Apr 2013
Posts: 104
Likes: 2
From: Greenville SC
Check for a bad TPS, or broken wires to the TPS. A problem there will cause the computer to disable the ASR. When that happens, you no longer have computer controlled tranny shift points, which will give you the hard shifts.
My 96 LT1 did the same thing. One of the TPS wires was broken in half inside of a factory taped portion of the harness. The other was broken at the connector, but the insulation was still intact.
My 96 LT1 did the same thing. One of the TPS wires was broken in half inside of a factory taped portion of the harness. The other was broken at the connector, but the insulation was still intact.
Thread Starter
Heel & Toe
Joined: Nov 2013
Posts: 15
Likes: 0
good news
I was able to clear all codes by disconnecting battery and touching terminals together then I when to asr connector and tps connector pushed them in pushed wires down in connector and drove to work today no lights I then met my friend who was a chevy gm tech for 15 years he has a tech 2 with the tech 2 powered at car battery with alligator clips we got the car to communicate only code in history was 22 for low response tps I fooled with wires again more pushed in tight he cleared code I drove home car seemed fine no codes yet not sure what to do about wires and connectors but for now im leaving it I will post again if codes appear thank you all
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Safety Car
Joined: Jan 2004
Posts: 3,556
Likes: 13