PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Pcm lost connection while reprogramming..

Thread Tools
 
Search this Thread
 
Old May 30, 2010 | 03:40 AM
  #1  
Meen95z's Avatar
Thread Starter
10 Second Club
20 Year Member
iTrader: (26)
 
Joined: Feb 2006
Posts: 410
Likes: 0
From: Ohio
Unhappy Pcm lost connection while reprogramming..

I know this is not a obd2 pcm but, I was using lt1 edit to put a different program into my 95' T/A earlier today and everything worked good as usual and when it got to 16% it stopped and just read trying to re-establish communication with pcm. I let it go for like 5 minutes to see if it would recover and nothing. Checked connections and all were fine, so I just had to close the program. I disconnected the battery for 10 minutes and tried again and now it will stay at 0% and wont communicate. Car starts and runs for 1 or 2 seconds and fans are on when the key is on now. Anyway to get around sending it in for repair? And what causes it to stop communication in the middle of programming? Any help would be great.. Thanks
Reply
Old May 30, 2010 | 06:24 AM
  #2  
BLK02WS6's Avatar
9 Second Club
iTrader: (2)
 
Joined: Jul 2002
Posts: 2,583
Likes: 1
From: on the dyno tuning in MD
Default

You might try unhooking the battery for a longer period of time - 30 minutes. But I doubt it will work. You are probably gonna have to replace the PCM. That is the number one reason I don't mess with LT1 stuff anymore... not worth the trouble. Could have been the car's battery got low during the push. and you can't have it on a charger, cause that can kill it too. Or something happened with your laptop. I killed three 95's before I found out that something in my laptop operating system (Window's XP) was fouling up the works. I put the tuning software on an older laptop with Windows 98, and it worked fine... who knows. I just refuse to touch them anymore...

You might be able to find one reasonable at a junkyard, but you are gambling on that. Try PCMforless.com - they can help with reasonable priced replacement PCMs for OBD I.
Reply




All times are GMT -5. The time now is 09:15 PM.

story-0
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-1
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-2
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-3
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-4
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-5
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-6
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-7
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-8
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-9
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