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COSteve
April 4th, 2004, 09:28 PM
New to the board, had my Check Engine light go on with 88. Checked the book and it says "#88 Purge Valve Leak". Looked in the Shop Manual and I know what it looks like. Checked the truck and no apparent leaks. Then tried the reset procedure and it does not clear. So...... is it "usually" the valve itself, or should I start going through all the lines with bubble solution? 93 NAS 110 with 91K Thanks to all in advance!
Mike Hippert
April 5th, 2004, 08:53 AM
http://www.rangie.com/files/167_382.jpg

From here

http://www.rangie.com/articles_topic.php?id=167&cat=7&subCat=51

Also sometimes Faults can be caused by bad connections to sensors.
COSteve
April 5th, 2004, 04:04 PM
Mike, Thanks for the post. The 88 code has specifically a "leak" parameter, so it would not be affecting the sensors (o2). Am I missing something?
COSteve
Mike Hippert
April 5th, 2004, 04:39 PM
What I mean is, the wires running to the sensors can become disconnected, and then the computer would show a code saying something is wrong. So just fallow the cable going to the sensor back to the ECM and make sure that nothing is unplugged or cut.
COSteve
April 6th, 2004, 08:01 PM
I flipped the master and reset the box and the 88 code cleared. May be intermittent. Have to reset the stereo station presets now :(
Mike Hippert
April 7th, 2004, 09:14 AM
You don't have to pull the batt.

From the FAQ section

Clearing the display:
1. Switch ignition on.
2. Disconnect serial link mating plug, wait 5 seconds, then reconnect.
3. Switch ignition off, wait for main relay to drop out.
4. Switch ignition on. The display should now be reset. If there are other faults, the next one will be displayed. Otherwise the display will be black
5. If there is more than one fault repeat steps 1 to 4, to clear each fault until the display is blank.
COSteve
April 7th, 2004, 11:32 AM
Michael, Tried that and it did not clear, but will try again should it still be a recurring issue. Thx Steve
Mike Hippert
April 7th, 2004, 12:07 PM
You can also just pull off the main plug on the ECM with the engine off that way you don't loose your radio, that or I have a wire that goes from the radio to the Batt so when I disconnect everything else The radio will still be connected.