GM Engine & Exhaust Performance EFI | GEN I/GEN II/GEN III/GEN IV Engines |Small Block | Big Block |

Heres one for you tech heads.....

Thread Tools
 
Search this Thread
 
Old Oct 2, 2005 | 09:29 PM
  #21  
parish8's Avatar
single digit dreamer
iTrader: (6)
 
Joined: Mar 2002
Posts: 9,743
Likes: 2
From: omaha ne
Default

i still haven't heard how you confirmed the injectors are fireing. you should do that before you tear the motor out.

one way that will tell you something is let the fuel pump prime up to 5x. psi. presure should hold with the key off. then pull the fuel pump fuse and crank it over. the presure should drop if the injectors are opening. if the presure stays the same then the injectors are not opening.

are the plugs damp at all or dry? do they smell like fuel?
Reply
Old Oct 2, 2005 | 09:33 PM
  #22  
XLR8NSS's Avatar
Adkoonerstrator
iTrader: (4)
 
Joined: Nov 2001
Posts: 21,436
Likes: 3
From: Deep in the seedy underworld of Koonerville
Default

You don't have any "extra" pushrods laying around the shop do ya.....say 16 of 'em?
Reply
Old Oct 2, 2005 | 09:55 PM
  #23  
ATIBlownZ71's Avatar
Thread Starter
Teching In
 
Joined: Jul 2005
Posts: 19
Likes: 0
From: colorado springs
Default

LOL no extra pushrods. We confirmed fuel 2 ways: one we pulled the plugs and got fuel pushed out of the plug hole on the compression stroke, the other way we just pulled the rails with the plugs attached and let them fire. LOL lets just say they have a very nice atomized spray. Eau de gasoline anybody

Went over all the sensors to make sure everything was tightly plugged in - they are. That was the first thing we did. Then we checked all the grounds - they are still all good.

My brother actually said bent pushrods when I first called him. I just refused to believe him. Maybe tomorrow I'll have some new news.
Reply
Old Oct 3, 2005 | 09:43 AM
  #24  
Gordy M's Avatar
TECH Enthusiast
iTrader: (2)
 
Joined: Jan 2004
Posts: 505
Likes: 0
From: Plymouth, MI
Default

When you put in the new PCM, did you do a CASE LEARN, adjustment for the crankcase sensor. While I have not heard of one not starting, you might check for the P1336 code.
Reply
Old Oct 3, 2005 | 10:38 AM
  #25  
TECH Resident
iTrader: (36)
 
Joined: Mar 2004
Posts: 869
Likes: 1
From: somewhere in the sticks.
Default

when you are trying to crank it with your tuner are you seeing atleast 750 rpm if not you might have a bad crank sensor or cam sensor.
Reply
Old Oct 3, 2005 | 03:47 PM
  #26  
ATIBlownZ71's Avatar
Thread Starter
Teching In
 
Joined: Jul 2005
Posts: 19
Likes: 0
From: colorado springs
Default

You guys ready for this? I have egg on my face...lol. The plugs were too cold. Put in the old stock ones and she fired right up. Now I just need to go get some tr6's and should be all set.
Reply
Old Oct 3, 2005 | 03:51 PM
  #27  
parish8's Avatar
single digit dreamer
iTrader: (6)
 
Joined: Mar 2002
Posts: 9,743
Likes: 2
From: omaha ne
Default

huh? ok then. what plugs were you trying to use?
Reply
Old Oct 3, 2005 | 04:34 PM
  #28  
Wilde Racing's Avatar
How do I change this text
iTrader: (26)
 
Joined: Jan 2005
Posts: 7,294
Likes: 2
From: Behind the TIG welder
Default

Glad to hear it was a easy fix!!!
Reply
Old Oct 3, 2005 | 04:42 PM
  #29  
SSlow 4.8's Avatar
TECH Junkie
iTrader: (4)
 
Joined: Mar 2005
Posts: 3,394
Likes: 1
From: Flowery Branch, GA
Default

too cold of plugs... were these freon charged plugs? hmmm lol, which ones were on there?
Reply
Old Oct 3, 2005 | 07:09 PM
  #30  
shandy294's Avatar
TECH Fanatic
 
Joined: May 2004
Posts: 1,087
Likes: 0
From: Cibolo Tx
Default

Bizzare....you'd think it would've at least sputtered a little with the old ones.
Reply



All times are GMT -5. The time now is 01:14 PM.