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

Please help diagnose some problems

Thread Tools
 
Search this Thread
 
Old Jan 13, 2007 | 04:45 PM
  #1  
Tim98TA's Avatar
Thread Starter
TECH Junkie
iTrader: (7)
 
Joined: Nov 2001
Posts: 3,378
Likes: 1
From: From the Bowels of Hell!!! You want some of me bitch?!?!?!
Default Please help diagnose some problems

Reinstalled a rebuilt LT1 into a 97 bird. Here are the issues I'm having and what I have done.

All plugs are plugged in.
Ground wires have been gone through and rechecked.
All fuses have been checked.
Battery has good power.

Motor turns over fine.
I get spark from the coil.

I do NOT hear the fuel pump come on.
I checked the wires to the fuel pump relay under the kick panel. I get power all the time to 2 wires. Only 7 volts to the plug in the back near the tank.
When I connect the battery, it seems that something is pulling a fairly good draw on it due to the small spark emmited when connecting the battery. (After rechecking, it seems it's only the headlight motors clicking)
With the key OFF I get an ABS INOP light, a CHECK GAUGES light, and a LOW OIL light.
Turning the key on, these lights go out and the normal lights come like they are supposed to.
NONE of the gauges work when the key is on.
I pulled the pcm back out to check the plugs. 1 of the pins came out of the pcm with the connector. It looked like it had kinda been burnt. I traced it and it is #C32 PCM GROUND. (With the connector unplugged, I am showing 12v at the pin location on the connector.)
I checked the entire engine harness and no wires are crimped or pinched.

Could that pin be related to the whole problem?
How would that pin have shorted?

Any help on this would be much appreciated.
Reply
Old Jan 13, 2007 | 05:07 PM
  #2  
9formula4's Avatar
TECH Regular
iTrader: (5)
 
Joined: Jan 2006
Posts: 478
Likes: 0
From: Iowa
Default

if you burnt anything at the PCM you will have problems. The PCM controls everything in the car. Any surge in the power or short in the wiring to the PCM and thye are done for. They are VERY brittle pieces.
Reply
Old Jan 13, 2007 | 05:30 PM
  #3  
Tim98TA's Avatar
Thread Starter
TECH Junkie
iTrader: (7)
 
Joined: Nov 2001
Posts: 3,378
Likes: 1
From: From the Bowels of Hell!!! You want some of me bitch?!?!?!
Default

So, I take it that this pcm is done for?
Reply




All times are GMT -5. The time now is 05:12 AM.

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