LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

Car runs fine until it warms up then goes crazy.....help.

Thread Tools
 
Search this Thread
 
Old 06-19-2006, 08:53 AM
  #1  
Registered User
Thread Starter
 
Bill_Mitchell's Avatar
 
Join Date: Jan 2000
Location: Milledgeville, Ga.
Posts: 42
Car runs fine until it warms up then goes crazy.....help.

95 Z28 Camaro.....cranks fine when it's cold then after it warms up....about a mile down the road.....starts spitting and backfiring....shoots flames out the tail pipe.....shuts off sometimes.....will eventually get you back home but it's a battle.

Ran code check with a laptop and ALDL cable from a friend had six codes including ESC grounding problem, MAF, MAP, Knock sensor and others.

Has new ac delco opti. New coil, new MAP sensor, new temp sensor and new plugs.....changed three times in two weeks.

Running so rich it fouls the plugs.

Car has only CAI, air foil and Headers. That's all.

Everybody respond, I need all ideas.
Bill_Mitchell is offline  
Old 06-19-2006, 09:26 AM
  #2  
Registered User
 
OBE1 95Z28's Avatar
 
Join Date: Dec 1969
Location: San Diego, CA
Posts: 4,950
Re: Car runs fine until it warms up then goes crazy.....help.

O2 sensors, sounds like a closed loop issue.
OBE1 95Z28 is offline  
Old 06-19-2006, 10:01 AM
  #3  
Registered User
 
Sweetred95ta's Avatar
 
Join Date: Sep 2002
Location: High Ridge, MO
Posts: 2,193
Re: Car runs fine until it warms up then goes crazy.....help.

Did you check your O2 sensor voltage. I just scanned a buddies car that is doing something similar, and I noticed his 02 sensor voltage is different by .5 from one to the other. It hasn't been fixed yet, but I'm supposed to talk to him today. Let us know if you notice anything funny with the 02's.
Sweetred95ta is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
97SSdude
LT1 Based Engine Tech
9
12-31-2014 07:43 PM
jj71787
General 1967-2002 F-Body Tech
6
12-30-2014 02:15 PM
ro2207
LT1 Based Engine Tech
14
12-04-2014 06:18 PM
nophix
Fuel and Ignition
3
11-30-2014 10:26 PM
supercharged94Z28
LT1 Based Engine Tech
12
02-24-2003 10:22 PM



Quick Reply: Car runs fine until it warms up then goes crazy.....help.



All times are GMT -5. The time now is 03:31 PM.