My Patience Is Gone - F* This Car!! - Limp Again "FIXED"
#61
BertrandGrey, I came across this long shot when researching something else entirely:
Have you had the catalyzers checked for clogging and back-pressure? Some control designs alert the driver to this by illuminating the MIL light. I've also noticed on mine that anything that illuminates the MIL light also indicates "restricted performance" during some unrelated fuel economy experiments I'm carrying out.
I would think the catalyzers would be of the three way type (but check it out) and they operate in a very narrow fuel/air ratio condition. I do believe there are two O2 sensors involved, one before and one after the catalyzer. Indications might be dodgy petrol used previously, or a lot of cold-running.
As I say, LONG-SHOT, but you don't seem to have much else left!
Leedsman.
Have you had the catalyzers checked for clogging and back-pressure? Some control designs alert the driver to this by illuminating the MIL light. I've also noticed on mine that anything that illuminates the MIL light also indicates "restricted performance" during some unrelated fuel economy experiments I'm carrying out.
I would think the catalyzers would be of the three way type (but check it out) and they operate in a very narrow fuel/air ratio condition. I do believe there are two O2 sensors involved, one before and one after the catalyzer. Indications might be dodgy petrol used previously, or a lot of cold-running.
As I say, LONG-SHOT, but you don't seem to have much else left!
Leedsman.
Last edited by Leedsman; 07-29-2011 at 02:30 PM.
#62
Leeds.... Clogged Catalytic Converters do trigger "restricted performance" but they do not trigger "limp mode". Remember All, restriced performance and limp mode are two very different things...
Restricted Performance: Something is wrong so the car is not allowed to opperate in its full range, but is drivable...It will allow gentle acceleration to regular highway speed.
Limp Mode: Major fault is detected by the PCM. The car goes into a default idle mode. Designed to allow the driver to still use power brakes and steering. Exists so the driver can attempt to get their vehicle off the roadway and shut it off.
Restricted Performance: Something is wrong so the car is not allowed to opperate in its full range, but is drivable...It will allow gentle acceleration to regular highway speed.
Limp Mode: Major fault is detected by the PCM. The car goes into a default idle mode. Designed to allow the driver to still use power brakes and steering. Exists so the driver can attempt to get their vehicle off the roadway and shut it off.
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jag79 (07-30-2011)
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Take care,
George
#68
Yikes.. I've fallen into the trap...
Anyway... Still locking in the sitter, but will be there...
Again.. Let me know what to bring...
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Yes let us know about the Skype, I might be able to look in during the afternoon.
#80