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Old February 4th 05, 06:15 AM
Lawrence Glickman
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On 3 Feb 2005 20:38:50 -0800, wrote:

>I do not think I replaced the pulsator, unless it came with my autozone
>pump. The CPI and nut kit where ACDelco parts.
>
>I kind of think it might be the catlytic converter now. That is what a
>couple people have told me and it seems like these symptoms could be
>caused by a clogged converter. I will test it first since it is a bit
>easier. Then I guess I will either do the test drive you suggested and
>change the pulsator.
>
>Thanks for the suggestions,
>
>Dave


If you would get a data logger, do they have them for a 1995 car/van ?
///////////////////////////////////////////////////////////////////////////////////////////////////////////

My fuel pressure is _supposed to be between 35 and 45 psi according to
the book, but I see on SOME occasions it goes outside those bounds,
especially while idling. In fact, it seems only while idling. So I
don't know what that is all about. NO DTC CODES either thrown or
pending, according to my OBDII scanner. But my data logger picked
this up. Notice what happens at the 13 minute point when I was idling
the car while eating lunch one day....

Fuel pressure doesn't come back to normal until minute 25, when I
accelerate and travel off again.

For 11 minutes my system was over pressurized, but no MIL or DTC
codes. And out of 115 trips on this particular log, it only happened
this _once_.

Anyhow, if you can fit a data logger on a 95 Astrovan ( haven't a clue
if you have an OBDII port ) you can use a data logging chip to watch
your fuel system while you drive around.

////////////////////////////////////////////////////////////////////////////////////////////////////////////
CAUTION:
BANDWIDTH BUSTER AHEAD:
////////////////////////////////////////////////////////////////////////////////////////////////////////////

NOTE: the three digits on the right, two to the left of the decimal
point and one to the right, show fuel pressure at 5 second intervals
from start of engine.

Time into trip is left of that

If you do this, you have narrowed down one possibility. And you can
log fuel trims right along with that.

\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\ \\\\\\


Title : View / Trip Log / Trip 22 / Plot / Fuel Pressure (psi) / Start
Time
Rows : 1
Columns : 1
Column 01 : Start Time []
1/21/2005 1:56 PM

Title : View / Trip Log / Trip 22 / Plot / Fuel Pressure (psi)
Rows : 606
Columns : 2
Column 01 : Elapsed Time []
Column 02 : Fuel Pressure (psi) [psi]
0:00:00 48.7
0:00:04 47.4
0:00:09 46.6
0:00:14 46.1
0:00:19 46.6
0:00:24 44.4
0:00:29 44.8
0:00:34 43.1
0:00:39 45.7
0:00:44 40.5
0:00:49 44.8
0:00:54 39.6
0:00:59 41.8
0:01:04 39.2
0:01:09 41.3
0:01:14 40.5
0:01:19 38.3
0:01:24 38.7
0:01:29 40.5
0:01:34 41.3
0:01:39 39.2
0:01:44 38.7
0:01:49 41.8
0:01:54 40.0
0:01:59 37.9
0:02:04 40.0
0:02:09 39.2
0:02:14 40.5
0:02:19 41.3
0:02:24 38.3
0:02:29 39.2
0:02:34 40.5
0:02:39 39.2
0:02:44 40.5
0:02:49 39.6
0:02:54 40.5
0:02:59 40.5
0:03:04 38.7
0:03:09 40.0
0:03:14 38.7
0:03:19 39.2
0:03:24 39.6
0:03:29 39.2
0:03:34 37.9
0:03:39 39.6
0:03:44 38.7
0:03:49 38.7
0:03:54 39.2
0:03:59 39.2
0:04:04 38.7
0:04:09 39.6
0:04:14 40.9
0:04:19 38.7
0:04:24 38.3
0:04:29 40.0
0:04:34 40.5
0:04:39 40.0
0:04:44 39.2
0:04:49 39.6
0:04:54 40.0
0:04:59 38.7
0:05:04 40.5
0:05:09 38.7
0:05:14 40.5
0:05:19 40.0
0:05:24 38.7
0:05:29 40.5
0:05:34 39.2
0:05:39 38.7
0:05:44 38.7
0:05:49 39.6
0:05:54 41.3
0:05:59 38.7
0:06:03 38.7
0:06:08 41.3
0:06:13 37.9
0:06:18 39.6
0:06:23 38.7
0:06:28 38.7
0:06:33 38.7
0:06:38 40.0
0:06:43 39.6
0:06:48 38.3
0:06:53 40.5
0:06:58 40.5
0:07:03 39.6
0:07:08 39.6
0:07:13 40.9
0:07:18 38.7
0:07:23 38.7
0:07:28 39.2
0:07:33 39.6
0:07:38 39.6
0:07:43 37.9
0:07:48 41.3
0:07:53 41.3
0:07:58 40.0
0:08:03 41.8
0:08:08 40.9
0:08:13 38.3
0:08:18 40.5
0:08:23 38.7
0:08:28 39.6
0:08:33 38.7
0:08:38 40.5
0:08:43 40.0
0:08:48 39.2
0:08:53 39.6
0:08:58 40.9
0:09:03 39.6
0:09:08 39.6
0:09:13 40.0
0:09:18 39.6
0:09:23 41.8
0:09:28 41.3
0:09:33 41.3
0:09:38 40.5
0:09:43 42.2
0:09:48 41.3
0:09:53 42.6
0:09:58 42.6
0:10:03 44.4
0:10:08 41.3
0:10:13 42.6
0:10:18 40.9
0:10:23 44.4
0:10:28 41.3
0:10:33 43.9
0:10:38 43.1
0:10:43 44.8
0:10:48 43.9
0:10:53 44.4
0:10:58 42.2
0:11:03 41.8
0:11:08 44.8
0:11:13 44.4
0:11:18 44.8
0:11:23 46.1
0:11:28 45.3
0:11:33 43.9
0:11:38 46.1
0:11:43 42.2
0:11:48 43.1
0:11:53 46.1
0:11:58 43.9
0:12:03 45.3
0:12:07 47.0
0:12:12 44.8
0:12:17 47.9
0:12:22 45.3
0:12:27 45.7
0:12:32 46.6
0:12:37 45.3
0:12:42 45.7
0:12:47 46.6
0:12:52 46.1
0:12:57 45.3
0:13:02 46.6
0:13:07 46.1
0:13:12 46.6
0:13:17 48.3
0:13:22 47.4
0:13:27 49.2
0:13:32 46.6
0:13:37 45.3
0:13:42 48.7
0:13:47 47.9
0:13:52 48.3
0:13:57 49.6
0:14:02 49.2
0:14:07 46.6
0:14:12 47.4
0:14:17 48.3
0:14:22 47.4
0:14:27 47.4
0:14:32 49.2
0:14:37 50.5
0:14:42 49.6
0:14:47 49.2
0:14:52 48.7
0:14:57 48.7
0:15:02 50.9
0:15:07 48.3
0:15:12 51.3
0:15:17 49.6
0:15:22 48.3
0:15:27 49.2
0:15:32 53.5
0:15:37 50.5
0:15:42 51.3
0:15:47 50.0
0:15:52 50.9
0:15:57 50.9
0:16:02 50.0
0:16:07 50.5
0:16:12 53.1
0:16:17 52.6
0:16:22 49.2
0:16:27 49.6
0:16:32 51.3
0:16:37 51.3
0:16:42 51.8
0:16:47 50.5
0:16:52 51.8
0:16:57 53.1
0:17:02 52.6
0:17:07 51.8
0:17:12 52.2
0:17:17 53.1
0:17:22 51.3
0:17:27 50.9
0:17:32 51.8
0:17:37 51.8
0:17:42 52.2
0:17:47 51.3
0:17:52 53.5
0:17:57 52.6
0:18:02 52.2
0:18:06 51.3
0:18:11 50.9
0:18:16 50.0
0:18:21 51.8
0:18:26 51.8
0:18:31 53.1
0:18:36 52.2
0:18:41 52.6
0:18:46 54.0
0:18:51 53.5
0:18:56 54.0
0:19:01 51.3
0:19:06 52.6
0:19:11 52.6
0:19:16 54.8
0:19:21 51.8
0:19:26 55.3
0:19:31 53.1
0:19:36 53.5
0:19:41 52.2
0:19:46 52.6
0:19:51 53.5
0:19:56 53.1
0:20:01 55.3
0:20:06 51.3
0:20:11 55.3
0:20:16 52.6
0:20:21 54.0
0:20:26 54.4
0:20:31 58.3
0:20:36 55.3
0:20:41 54.0
0:20:46 53.5
0:20:51 54.8
0:20:56 53.5
0:21:01 55.3
0:21:06 54.0
0:21:11 54.0
0:21:16 53.1
0:21:21 54.0
0:21:26 54.4
0:21:31 53.5
0:21:36 52.2
0:21:41 54.4
0:21:46 54.4
0:21:51 54.4
0:21:56 54.4
0:22:01 55.3
0:22:06 53.1
0:22:11 54.8
0:22:16 55.7
0:22:21 54.8
0:22:26 50.9
0:22:31 54.4
0:22:36 54.0
0:22:41 54.0
0:22:46 52.2
0:22:51 54.8
0:22:56 54.8
0:23:01 54.4
0:23:06 56.1
0:23:11 56.1
0:23:16 52.6
0:23:21 55.7
0:23:26 53.1
0:23:31 54.4
0:23:36 55.7
0:23:41 55.7
0:23:46 56.1
0:23:51 54.0
0:23:56 54.4
0:24:01 54.0
0:24:06 53.5
0:24:10 53.5
0:24:15 50.9
0:24:20 51.8
0:24:25 51.8
0:24:30 55.7
0:24:35 50.5
0:24:40 51.3
0:24:45 51.8
0:24:50 50.9
0:24:55 47.0
0:25:00 46.6
0:25:05 44.8
0:25:10 50.5
0:25:15 46.1
0:25:20 46.6
0:25:25 45.3
0:25:30 42.6
0:25:35 44.8
0:25:40 45.7
0:25:45 47.0
0:25:50 46.6
0:25:55 45.7
0:26:00 44.4
0:26:05 44.4
0:26:10 47.9
0:26:15 44.4
0:26:20 47.0
0:26:25 43.9
0:26:30 43.1
0:26:35 41.8
0:26:40 44.4
0:26:45 42.2
0:26:50 45.3
0:26:55 41.3
0:27:00 43.5
0:27:05 37.0
0:27:10 43.1
0:27:15 39.2
0:27:20 38.3
0:27:25 39.6
0:27:30 40.0
0:27:35 38.3
0:27:40 40.9
0:27:45 40.5
0:27:50 38.7
0:27:55 40.0
0:28:00 40.9
0:28:05 41.3
0:28:10 39.2
0:28:15 40.9
0:28:20 38.3
0:28:25 40.0
0:28:30 40.0
0:28:35 40.5
0:28:40 39.6
0:28:45 40.0
0:28:50 40.9
0:28:55 37.9
0:29:00 38.7
0:29:05 40.0
0:29:10 39.6
0:29:15 40.0
0:29:20 39.6
0:29:25 40.0
0:29:30 40.0
0:29:35 40.5
0:29:40 40.0
0:29:45 39.2
0:29:50 42.2
0:29:55 39.6
0:30:00 38.3
0:30:05 39.2
0:30:09 40.5
0:30:14 38.3
0:30:19 40.5
0:30:24 39.2
0:30:29 40.0
0:30:34 40.5
0:30:39 42.2
0:30:44 40.5
0:30:49 40.0
0:30:54 40.5
0:30:59 39.6
0:31:04 39.2
0:31:09 42.2
0:31:14 40.5
0:31:19 40.5
0:31:24 38.7
0:31:29 40.0
0:31:34 38.7
0:31:39 40.0
0:31:44 38.7
0:31:49 37.9
0:31:54 40.0
0:31:59 40.5
0:32:04 38.7
0:32:09 40.9
0:32:14 39.2
0:32:19 39.6
0:32:24 38.7
0:32:29 41.3
0:32:34 39.6
0:32:39 40.0
0:32:44 39.2
0:32:49 38.3
0:32:54 37.9
0:32:59 40.9
0:33:04 39.6
0:33:09 38.7
0:33:14 41.3
0:33:19 40.5
0:33:24 39.6
0:33:29 38.3
0:33:34 40.0
0:33:39 37.9
0:33:44 41.8
0:33:49 38.7
0:33:54 39.2
0:33:59 40.0
0:34:04 39.6
0:34:09 38.3
0:34:14 41.3
0:34:19 39.2
0:34:24 39.2
0:34:29 41.3
0:34:34 38.3
0:34:39 39.6
0:34:44 39.6
0:34:49 40.5
0:34:54 40.0
0:34:59 40.9
0:35:04 40.0
0:35:09 40.9
0:35:14 40.9
0:35:19 39.6
0:35:24 39.2
0:35:29 38.3
0:35:34 38.7
0:35:39 40.0
0:35:44 38.3
0:35:49 38.7
0:35:54 38.7
0:35:59 40.5
0:36:04 40.5
0:36:09 41.3
0:36:13 40.9
0:36:18 38.7
0:36:23 40.5
0:36:28 39.6
0:36:33 40.5
0:36:38 41.3
0:36:43 39.6
0:36:48 39.6
0:36:53 38.7
0:36:58 39.6
0:37:03 38.3
0:37:08 39.6
0:37:13 37.9
0:37:18 39.6
0:37:23 39.6
0:37:28 40.0
0:37:33 39.2
0:37:38 40.9
0:37:43 38.7
0:37:48 38.7
0:37:53 39.6
0:37:58 40.5
0:38:03 40.5
0:38:08 38.3
0:38:13 40.0
0:38:18 38.3
0:38:23 39.2
0:38:28 40.9
0:38:33 39.2
0:38:38 41.3
0:38:43 40.0
0:38:48 39.6
0:38:53 39.2
0:38:58 37.9
0:39:03 39.2
0:39:08 40.9
0:39:13 38.7
0:39:18 40.9
0:39:23 39.2
0:39:28 40.5
0:39:33 38.3
0:39:38 39.6
0:39:43 40.5
0:39:48 40.9
0:39:53 40.0
0:39:58 38.3
0:40:03 37.4
0:40:08 40.0
0:40:13 40.5
0:40:18 40.0
0:40:23 39.6
0:40:28 43.5
0:40:33 40.9
0:40:38 40.9
0:40:43 40.9
0:40:48 39.6
0:40:53 39.2
0:40:58 39.2
0:41:03 39.6
0:41:08 38.3
0:41:13 40.0
0:41:18 38.7
0:41:23 39.6
0:41:28 38.7
0:41:33 40.5
0:41:38 39.6
0:41:43 40.0
0:41:48 40.5
0:41:53 39.6
0:41:58 39.2
0:42:03 40.0
0:42:08 41.3
0:42:12 41.3
0:42:17 38.7
0:42:22 39.6
0:42:27 39.6
0:42:32 41.3
0:42:37 38.3
0:42:42 38.7
0:42:47 40.0
0:42:52 39.6
0:42:57 40.9
0:43:02 39.2
0:43:07 38.7
0:43:12 39.2
0:43:17 38.7
0:43:22 38.7
0:43:27 40.9
0:43:32 40.0
0:43:37 35.7
0:43:42 40.5
0:43:47 38.3
0:43:52 40.0
0:43:57 40.9
0:44:02 39.2
0:44:07 39.2
0:44:12 39.2
0:44:17 40.9
0:44:22 39.6
0:44:27 40.5
0:44:32 39.2
0:44:37 40.9
0:44:42 40.5
0:44:47 38.7
0:44:52 38.7
0:44:57 38.7
0:45:02 39.2
0:45:07 40.0
0:45:12 41.3
0:45:17 40.5
0:45:22 39.2
0:45:27 40.0
0:45:32 38.7
0:45:37 41.3
0:45:42 39.2
0:45:47 40.5
0:45:52 40.0
0:45:57 41.3
0:46:02 40.9
0:46:07 41.3
0:46:12 38.7
0:46:17 40.0
0:46:22 41.3
0:46:27 39.6
0:46:32 39.6
0:46:37 37.9
0:46:42 40.0
0:46:47 40.0
0:46:52 39.2
0:46:57 39.2
0:47:02 39.6
0:47:07 38.7
0:47:12 40.0
0:47:17 39.2
0:47:22 39.2
0:47:27 40.0
0:47:32 40.0
0:47:37 40.9
0:47:42 38.3
0:47:47 41.3
0:47:52 37.9
0:47:57 38.7
0:48:02 41.8
0:48:07 38.7
0:48:12 39.2
0:48:16 41.3
0:48:21 38.7
0:48:26 39.6
0:48:31 40.5
0:48:36 40.5
0:48:41 39.2
0:48:46 38.7
0:48:51 39.6
0:48:56 40.5
0:49:01 39.2
0:49:06 39.2
0:49:11 39.6
0:49:16 40.9
0:49:21 41.8
0:49:26 40.5
0:49:31 41.3
0:49:36 41.8
0:49:41 39.6
0:49:46 38.7
0:49:51 37.9
0:49:56 39.2
0:50:01 40.9
0:50:06 38.7
0:50:11 41.3
0:50:16 38.7

Title : View / Trip Log / Trip 22 / Plot / Fuel Pressure (psi) / End
Time
Rows : 1
Columns : 1
Column 01 : End Time []
1/21/2005 2:20 PM
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