PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

A few issues, no fuel or spark... a little help please

Thread Tools
 
Search this Thread
 
Old Oct 2, 2007 | 08:09 AM
  #1  
z28mccrory's Avatar
Thread Starter
TECH Resident
iTrader: (7)
 
Joined: Jul 2003
Posts: 756
Likes: 1
From: Southern Indiana
Default A few issues, no fuel or spark... a little help please

Hey guys.

Well my car has been sitting for two years. I finally got everything physically back together and im having a lot of problems.

The car was a H/C car before... now its a 418ci and im trying to go speed density.

The car was previously tuned with LS1 Edit a couple years back.

Now here are the problems...

I installed EFI Live on my laptop last night. I have the V1 commercial package. I cant get it to read the PCM. When i entered the vehicles VIN in the Scan Tool portion, it gave me an error about it not having OBD2 something or other loaded for that Vin (sorry im not more specific... laptop is at home and im at work). When i tried to connect to it on the tune side, it kept saying it couldn't connect to PCM and to check connections... no luck there... I read through the tutorial many times trying to see where i messed up and i think i did it like it says.

Other than that im having what i think is some sensor issues...

The car isnt getting spark or fuel... plugs are dry as can be after i crank on it... and when i took a plug out... it would spark initially as soon as the key was turned on... but nothing after that. Im thinking maybe i have a bad crank sensor?

I have eliminated a lot of the factory fuel and emission stuff on the car, and also got rid of ABS and such.... My fuel system consists of a 10an bulkhead fittin in the bottom of the tank.. running to a magnafuel 4302 pump and filters, to the rails that came with the vic intake... to a magnafuel regulator... then to a return line which i used another bulkhead fitting in the top of the tank. All evap and everything else is totally gone. Previously i had stock 99 injectors... now i have the Siemens/Mototron 60lb injectos (Rated 60 @ 42.5 psi so whatever they would be at 58psi).

Im just totally stumped at this point and dont know where to go from here. I know the current tune in the vehicle would be WAY off... but i would think that it would still at least fire... even if it was falling all over its self. The MAF is removed, but was told that if its not plugged in that it would default to Speed Density and still start. I backed the fuel pressure back to 40psi just to help with the overfueling for the time being... but since it seems as if its not pulsing the injectors anyway im not even to that point.

If anyone can give me some advise i would very much appreciate it.
Reply




All times are GMT -5. The time now is 10:05 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