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

just had my car scaned, code 42'- and 36?

Thread Tools
 
Search this Thread
 
Old Aug 24, 2004 | 10:54 AM
  #1  
luis nunez's Avatar
Thread Starter
Registered User
 
Joined: Jun 2001
Posts: 538
just had my car scaned, code 42'- and 36?

I just had my car sacned, it has 2 codes

42-->Ignition Control (IC) circuit (shorted or grounded circuit)

36-->Distributor ignition system (faulty high resolution pulse or extra low resolution pulse detected


are those codes fron the opti?
Old Aug 24, 2004 | 11:43 AM
  #2  
lillbush5555's Avatar
Registered User
 
Joined: Dec 2001
Posts: 808
From: Peachtree City, GA
Re: just had my car scaned, code 42'- and 36?

ummm..My guess would be a bad ground, try new plugs and wires..If that doesnt help you might need a opti. How old is all of that stuff? Is it hard to start? does it cut off or surge?

Matt
Old Aug 24, 2004 | 12:11 PM
  #3  
GreenDemon's Avatar
Registered User
 
Joined: Nov 2003
Posts: 1,770
From: Mishawaka, IN
Re: just had my car scaned, code 42'- and 36?

[QUOTE=luis nunez]36-->Distributor ignition system (faulty high resolution pulse or extra low resolution pulse detected
QUOTE]




Doesn't look good. About the only things that will get the car to throw this code is the opti or the wiring from the opti to the computer. Although the presence of that code does not neccessarily mean your opti is dead, and vice versa. Good luck.
Old Aug 24, 2004 | 12:38 PM
  #4  
turbo_Z's Avatar
Registered User
 
Joined: Nov 2001
Posts: 3,515
From: Kansas
Re: just had my car scaned, code 42'- and 36?

I wouldnt worry about them too much. Just clear the codes and see if they return. If the car is running fine then they are probably just a fluke. I get random codes every once in a while and the only reason I know is b/c I have a scanmaster in my car otherwise Id be like 90% of the ppl on this board who think b/c theres no SES there are no codes stored in the PCM.
Old Aug 24, 2004 | 12:53 PM
  #5  
shoebox's Avatar
Registered User
 
Joined: Dec 1969
Posts: 27,725
From: Little Rock, AR
Re: just had my car scaned, code 42'- and 36?

It's not uncommon for a code 36 to cause a code 42. Lots of people report these in tandem.
Old Aug 24, 2004 | 01:20 PM
  #6  
luis nunez's Avatar
Thread Starter
Registered User
 
Joined: Jun 2001
Posts: 538
Re: just had my car scaned, code 42'- and 36?

Originally Posted by lillbush5555
ummm..My guess would be a bad ground, try new plugs and wires..If that doesnt help you might need a opti. How old is all of that stuff? Is it hard to start? does it cut off or surge?

Matt

yes the car is hard to start sometimes, the plugs and wires are like 2 weeks old

so this maybe isn't the opti?
Old Aug 24, 2004 | 01:24 PM
  #7  
HBHRacing's Avatar
Registered User
 
Joined: Feb 2003
Posts: 1,109
From: Statesville NC
Re: just had my car scaned, code 42'- and 36?

check the condition of the opti connector. clean it if needed and clear the codes. I would bet that you have lost your high res signal. This is why you have extended cranking time and will probably notice poor fuel econ and lack of performance
Old Aug 24, 2004 | 01:35 PM
  #8  
luis nunez's Avatar
Thread Starter
Registered User
 
Joined: Jun 2001
Posts: 538
Re: just had my car scaned, code 42'- and 36?

Originally Posted by HBHRacing
check the condition of the opti connector. clean it if needed and clear the codes. I would bet that you have lost your high res signal. This is why you have extended cranking time and will probably notice poor fuel econ and lack of performance

days before it startet to act, my mpg was poor hum.. shoebox.. the opti conector is the one that is over the opti?
Old Aug 24, 2004 | 03:14 PM
  #9  
luis nunez's Avatar
Thread Starter
Registered User
 
Joined: Jun 2001
Posts: 538
Re: just had my car scaned, code 42'- and 36?

just came back fomr the shop.. the only code that has was the 36 and the guys told me that he revs the car to 3k and the computer isn't getting signal from the crank sensor
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Noenav
Cars For Sale
2
Mar 1, 2019 07:38 AM
PFYC
Supporting Vendor Group Purchases and Sales
0
Dec 1, 2014 08:08 AM
USAirman93
General 1967-2002 F-Body Tech
4
Nov 24, 2014 03:37 PM
chevroletfreak
LT1 Based Engine Tech
202
Jul 4, 2005 05:00 PM




All times are GMT -5. The time now is 01:37 AM.