Computer & Fuel Systems Talk about the control module, fuel systems and delivery, customization and more.

Crunching the numbers...

Old Nov 22, 2007 | 04:07 PM
  #1  
ILYA's Avatar
Thread Starter
|
In the Staging Lanes
Joined: Jan 2007
Posts: 55
From:
Default Crunching the numbers...

So, I ve been trying to determine the cause of this engine vibration that I've been having, some people suggested that the car is knocking... I've recently had a thread about an intermittent starting problem, but that turned out to be a Remote Ignition Switch Module, mounted on top center of the steering column... Now that my car starts and runs again, and has a new MAP Sensor, I am back at diagnosing why it vibrates and runs rich in BLMs... Also, knock count did not continue rising after I turned traction controll off, see below...

Here are 4 new Datamster .UNI files that I just recorded... If you want to view them, you will need a free DM35xEE module of TTL Datamster scanner program...

* * *

FILE 1
This file shows the car idling, warming up from 37deg F (outside temp) untill 56 deg F, at which time the laptop somehow lost the connection with the PCM... It happens on occasion, and then the only way to re-estabish the communication is to turn the car on and off
11-22=new_MAPS=1=37deg_to_56deg_IDLE.uni ---> 91.5 Kb, 1.4 min
http://www.mediafire.com/?a3swwgjcem9

FILE 2
This file shows the car idling, warming up for 17.8 mins, from 89 deg F (outside temp) untill 201 deg F, during which time the rpm's gradually decreased from 900 to 625... At 139 deg F the PCM went from Open Loop into Closed Loop, after that O2 levels varied from 32mV up to 879mV, the entire time the PCM was using Cell 16 (Special Load/Less than 700 rpm) and it showed ideal mixture, LBLM 124.3 and RBLM 137.6, and short-term was close to ideal mixture but on the rich side...
11-22=new_MAPS=2=89deg_to_201deg_IDLE.uni ---> 1.25 Mb, 17.8 min
http://www.mediafire.com/?4wct01hz3gl

FILE 3
This file is an interesting one, as it shows the car still idling at 204 def F... However, I found out, that as soon as I touch the brakes (engage the Brake Switch), especially in Neutral or Drive positions, the PCM starts going nuts and flashing all sorts of codes and data errors, so my guess is that the brake switch needs to be replaced also... I dont really understand how a brake switch would make the PCM throw all these codes, but I am not making this up you know...
11-22=new_MAPS=3=brake_on-off_codes_IDLE.uni ---> 274.8 Kb, 3.9 min
http://www.mediafire.com/?6nlod0t103y

FILE 4
This file is the fun one, as I went out on a test drive... Some idles, starts, stops, cruises, I got a chance to rump on it wide-open a few times... Note: about the first half of the run was recorded with ASR on, so when ithe car lost traction during hard acceleration, the computer pulled the timing, etc, then I reallized that it probably won't help with diagnosing things, so I turned the traction control off for the second part of the run... I found it interesting that the Knock Count progressed from 1034 to 1236 to 1947 to 2033 to 3297 to 4709 throughout the first part of the recording with ASR on, and stayed at 4709 after I turned ASR off, I wonder if this means anything... Lots of data in this run...
11-22=new_MAPS=4=Test-DRIVE.uni ---> 1.03 Mb, 15.2 min
http://www.mediafire.com/?5ymfz9xdwmw
 
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
shawn martin
Engine & Internal
2
Sep 8, 2009 01:38 AM
wimp9467
67-69 General
3
Aug 7, 2007 06:15 PM
TO B
General Tech
4
Jun 3, 2007 01:59 PM
TheStig
93-02 V6 Tech
3
Apr 27, 2007 12:44 PM
red88z
General Tech
0
Aug 11, 2004 12:30 PM


Thread Tools
Search this Thread

All times are GMT -5. The time now is 02:36 AM.